Older nickel-based batteries work better if they are fully drained regularly, and all batteries have ideal charging patterns you can follow. Know the situation with your battery and, Defrag your hard drive. Even once you have turned everything off and got yourself a bare-bones system, you can't avoid using the hard drive. But you can make it more efficient - defrag the drive so that read/write accesses are quicker. In particular, faster disk accesses mean that swap file memory will be more efficient, and quicker generally.Laptop ac adapter AC adapter laptop keyboard

10.Of course, there's no better tip than the one offered in one of the articles I read to research this one - "plug your laptop into the AC adapter". Of course, plugging the adaptor into the wall may in turn improve this process even further. But sage as this advice may be, it's not always practical. The best advice, however, is this - priority tasks and hardware considerations when power is short. Be smart and you'll be typing away long after everyone else has given up and been forced to watch the whole of 'Maid in Manhattan' three times. Just think of the hours of therapy you'll save

1.Turn off WiFi and Bluetooth if you don't need them. Obviously if you're trying to be online when you're on battery power you need to keep these on, but if you're on a flight or someplace where you aren't going to be online, just turn the WiFi off. Same goes for Bluetooth, if you don't need it on, turn it off.

2.Turn down your screen brightness. While screens are a lot more efficient than the used to be, you can still squeeze more time out of your battery if the screen isn't at full power. The trick here is turn down the screen until it's too dark to use, then bump it up a notch or two. That should give you the right balance of brightness and power saving. lcd screenAcer AC Adapters

3.If you have a backlit keyboard, turn the light off. Just like the screen, the keyboard light drains the battery pretty quickly.

4.If you're not using it, quit it. Every app that is running needs a little processor and hard drive time to stay running, all those apps add up to more drain. And don't just quit the apps you can see all the extras like Dropbox or mouse tools or other add ons use power too…if you don't really need them, just quit them.compaq AC Adapters dell AC Adapters 

5.If your laptop has a "power saving mode" use it. For example on MacBook Pros there is a setting for More Performance (it can tap into the graphics chip) or Better Battery (no graphics chip). Better battery is clearly the choice here.hp AC Adapters toshiba AC Adapters

Just remember the basic precept: if you don't need it, turn it off, turn it down, or quit it.

As the anode material, silicon nanotube arrays showed high initial Coulomb (Coulombic) efficiency (ie,> 85%), and can maintain a stable capacity (50 times of use is still> 80%). The results have been published in the Journal of the American Chemical Society, "featuring Nano (Nano Letters)", and will also show that the nanotube structure is expected with other types of electrode materials used together.

As has been repeatedly pointed out that silicon is an electrode in lithium ion batteries are promising candidate materials, because of its large energy density of about 4,200 mAhg, than graphite (372 mAhg - 1) 10 times, and have relatively low the work of the potential (of the Li / Li + is ~ 0.5 V). lcd screen laptop battery Acer AC AdaptersHowever, due to the increase in the number of lithium ions in the ability A1078 to be recycled in the rapid decay, but will result in crushing of silicon.

The researchers used silicon nanowires seal can be used as anode material for lithium-ion battery to solve this problem.

Divide in the lithium-ion battery to the important role

The important function of membrane separation and prevent electronic through the positive and negative, while to allow the passage of ions, thus completing the process in the discharge of lithium ions in the rapid transfer between positive and negative. Membrane properties directly affect the battery internal resistance, discharge capacity, cycle life with with safety. The thinner the membrane, the higher the porosity, the smaller the battery internal resistance, better high-rate discharge performance, high-performance membrane to improve the battery's overall performance has an important role.

Development of new energy vehicles,A1079 membrane localization of urgency

Although lithium divide the profits so high, but not the domestic industrialization of battery materials, the basic dependence on imports. To develop new energy vehicles, the need to address the production of membrane technology. Shows that the production car currently on the market are companies with a lithium battery separator technology to look forward to imagination. Fosugufen (000,973, stock it) (000 973) has the potential.

2009 institutions divide the company's lithium business research 12

Fosugufen (000973) BYD, a joint venture with Foshan Jin Hui Hi, production of conventional lithium ion dialysis microporous film, M8244 is the most advanced membrane technology vendors, the company owned 55%, in 2008 net profit contribution to the film business 34.35 million yuan, net profit of 38.28 million yuan in 2009 contributions. Now, the company produced less membrane for battery, but Jin Hui Hi-Tech is a national 863 project of the commitment of new energy vehicles one of the units, the main task is to 2010, to upgrade cell phone batteries for automotive battery separator membrane.Laptop ac adapter AC adapter laptop keyboard 

It is worth mentioning that the company's 2009 annual report showed that last year, including gold companies, SW, GF Securities (000,776, stock it) and other institutions, including field research on the company to 12 times, showing bodies attention of the business company. Transfer an active interest in the stock is worth

power adapter and battery

Wide variety of laptop power adapter can ACAdapter (variable AC to DC) and battery power. As a result of the power adapter has its own input / output voltage and rated power, therefore, best not to pay attention to the different models are equipped with laptop power adapter mix, so as not to burn out the machine. In addition, in the purchase after long hours of liteon PA-1600-05 Adapter dell PA-1900-02D Adapter
work should pay attention to the temperature of the power adapter how, not too normal. Batteries are currently used by Lion and Ni MH battery two. Lion battery is currently the mainstream, usually smart battery, with memory function, and the lighter, use the time normally longer, prices are more expensive; and Ni MH batteries are generally heavier weight, and may often need to learn the battery , wash it in the memory, but the price is relatively low. Current battery time is generally about 2 to 3 hours, if need a long time continuously (as frequently engaged in outdoor activities or travel of personnel), you can choose to use a longer time and have power to set the battery (Suspend) machine, or for a second backup battery.

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In order to obtain a good brand of social reputation, the general in the production of computer components for the various quality requirements are very strict, they have fixed partners, parts of the source fixed, thus avoiding all kinds of fake, defective appearance. However, "It is said that" now there are some vendors in order to profits, there will be some good red seq phenomenon.

And the more easily compatible in the selection, the general idea of ​​random configuration by the user, but also in the process of buying the source of volatile components, so that there can not avoid the quality problems, but if the hardware has a certain ability to identify, in the selection process Be careful, this situation can be avoided.

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2, production

Brand of machine in the production process, strict testing by experts, commissioning and long baking machine, so to avoid compatibility problems the machine, the user after the process due to the use of compatibility problems will be less.

Compatible in accordance with the wishes of the user to assemble temporary, though sometimes a certain test, but after all, no professional skills and testing tools, and baking machine time is limited, the probability of future problems certainly higher than the brand of machine.

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3, the price

The important point is to buy a computer prices, because the brand of the production, marketing, advertising can not avoid to spend a lot of money, so its price must be higher than the price of compatible computers.

Less compatible because all the above expenses, the price can imagine.

4, after-sales service

Brand machine to increase sales and visibility, have their own sales channels and good after-sales service channels, so that the user would quickly when problems arise after the given solution.

Purchases channel is not fixed as compatible, if in some small companies to buy, over a period of corporate failure, and that service on where to find it.

5, the upgrade

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Card machines due to consider the stability of the general configuration of its fixed, and some even allow users to tamper with the recent launch of major companies in the low-end machines, most have adopted the integrated motherboard, which the user after the upgrade is for the negative .

I always do not understand, what the computer is fake in the end, where he was off in the end, is not difficult to distinguish between true and false, but after many years of experience, I think that is nothing more than the so-called fake and other commodities, have polished , forgery, shoddy few in species, and as long as careful observation, a lot of comparison, note that summary, use of testing tools and other means, are generally able to distinguish between true and false parts.hp laptop keyboard toshiba laptop keyboard

1, motherboard, sound card, video card

Generally speaking, the so-called fake, some unscrupulous manufacturers of motherboards red seq good, real ones, the poor say that good. The formal motherboard manufacturers have some important features, as long as we grasp these features, the motherboard is not difficult to distinguish between true and false, the formal number of motherboard manufacturers have such features: a, very particular about the materials used in various parts of b, the circuit design aspects of using "S-type routing method" c, the motherboard work fine, smooth solder joints, a variety of ports and sockets without any loose d, a beautiful packaging, the box should have the motherboard manual and some necessary connection Many programs also comes with a floppy disk. These characteristics in accordance with the above, identify the time of purchase as long as serious, is not difficult to distinguish between true and false. (Sound card, video card may refer to the motherboard)

2, CPU

CPU's nothing more than some companies fake the CPU frequency grinding (REMARK) into a high frequency, because if these companies can produce a CPU, then they would have to launch its own brand. Now available in the market, REMARK the main CPU INTEL products, and lcd screen laptop battery Acer AC Adapters  PENTIUM2, 3 the process more difficult, there is not fake, AMD's CPU and CYRIX margin as indicators of small, low prices, so it's little REMARK . These are polished CPU has some features, these features can be identified. a, all polished, the positive mark in the CPU will have some friction, traces b, rubbing his hand writing, the writing will be altered easily after being erased c, the machine test, the CPU frequency jump one, two a grade, if there is crash,, Huaping and so on, then the quality would have considered. In addition, the CPU available in the market generally have two boxed and bulk. In general, the box is bigger insurance coefficient, and bulk is not to say, the bulk of the CPU to buy depends on the level of the purchaser's identification.

3, memory

There are several fake memory: one is the REMARK, the altered into a high-speed low speed, and second, there will be a bad place with a good mix of chips, three are from different manufacturers, different speed chips removed to fight and thrift, Fourth, poor memory with counterfeit brand-name products. These fake memory cost method based on several characteristics of the above is also very easy to identify, for REMARK memory, we can hand rub on the chip, if grazed after a fade, is false. The combination of the old chip, we see the chips on the memory and, if different manufacturers, different time, different speeds of the chips is false. In addition, manufacturers of products in the appearance of the formal point of view, it is sophisticated materials, fine workmanship, neat chip, and poor memory, poor materials, rough, irregular edges of circuit boards.

4, the displayLaptop ac adapter AC adapter laptop keyboard

Display the most important in the purchase of environmentally friendly features is that it is not radiation, energy saving. Is best connected in the selection of the host try to tune into a white screen to see if there is no noise, and in accordance with the instructions to the display resolution, refresh rate, color to the highest, see if you can achieve. Also, be sure not to covet the small cheap, too cheap to buy that monitor, because, first, the monitor is not cheap eco-friendly, not good for your eyes, after all, is against it every day, Kan Ma; Second, there are some renovation now displays, looks brand new brand new internal parts is indeed old, I had met a new 15 'monitor the situation of 800 yuan to buy, it can imagine something inside.

When the experiments described in the blast cells did not penetrate any part of the Screen, no part or all of the battery prominent Screen.
18.3.2 test battery in the middle of a 4-inch diameter hole and covered with a cover of the plane table. Cover 20 per foot from the hole in the steel wire or steel wire 0.017 inches form (0.43mm). In a sample placed around 2 feet wide on each side (610mm), 1 foot (305mm) 8 surface mesh screen. By the diameter of 0.010 inch wire mesh (0.25mm) wire 16-18 per inch wire form. Sample on the metal line, cover the central hole of the table, and then heated until the explosion or to its destruction. One safety valve parallel to the stone towards the cloth. SONY VGP-BPS2C battery SONY VGP-BPS9 battery SONY VGP-BPL9 battery
Standard knowledge
19. General remarks
19.1 Batteries shall identify the manufacturer's name, trade name or trademark and style settings.
19.2 Batteries shall identify the "Warning" and have the following or equivalent statements:
"Battery fire, explosions and the danger of burning, do not recharge, disassemble, extrusion, heated above 212 ° F, or burning"
"Risk of fire, explosion and bums. Do not recharge,
disassemble, Crush, heat above 212 ° F, or incinerate "
Exceptions 1: Cylindrical battery capacity is less than 300mAh or button M8403 battery, if the test shows that there is no such risk identification is not required.
Exception 2: 8-19 Day part of the conditions specified in no danger can not identify.
Exception 3: 300-950mAh battery capacity of the identifiable "WARNING" and the following description of a similar index "Risk of
explosion. Do not Recharge, or
incinerate. "If the battery is not enough space logo" CAUTION "identifies the packaging.
Exceptions 4: User replaceable battery logo "CAUTION" instead of "WARNING".
19.3 user replaceable batteries should be identified "CAUTION" and the following or equivalent statements:
"Fire, burning dangerous, do not recharge, disassemble, heated above 212 ° F or burned. Do not let children touch the battery before use on the original packaging. Used batteries should be properly disposed of, not into the mouth. If swallowed should immediately contact your doctor or local poison testing center. "
Exceptions 1: The last two sentences apply only to the diameter <32mm, less than 3.8mm thick battery. SONY VGP-BPS9A/B battery Sony VGP-BPS10 battery SONY VGP-BPL13 battery
Exception 2: 8.19 test did not find any of this without marking it
19.4 user replaceable battery should be permanently marking the following statement:
"May be used only to replace original battery, the battery may occur using the other fire and explosion, according to the user manual replacement."
Exception: If the end product does not contain these requirements, battery operation or maintenance manuals shall be as follows logo is "battery replacement and maintenance manual should be requested."
19.5 Operation and maintenance manual should provide users with complete instructions, such as how to replace and dispose of the used batteries. This information includes the following:
a) warning by the following or equivalent language statements:
"CAUTION-if not handled properly, the device uses batteries have caught fire and chemical burn risk.
Do not re-charging, removal, heated to 100 ℃ or more, or incineration, using the original battery replaced, use the other M9324 battery would catch fire or explosion. " SONY VGP-BPS13A/B battery SONY VGP-BPS13 battery Sony VGP-BPS22 Battery
b) explain how to replace the battery should be at the end of the following statements:
"Correct handling of used batteries away from children, not to dismantle and into the fire."
1.96 If the manufacturer in a number of factories manufacturing the battery, each battery pack should have a clear identity to confirm that the battery is what the factory produced.

Make sure you use a pattern or practice to select the appropriate thickness of the battery.

2. Caution
a. avoid buying poor quality counterfeit batteries and domestic batteries.
b. Do not be fooled by the fancy design of the battery.
c. Do not believe the stores sell.
d. Do not give the battery from overcharging.
e. Do not buy the packaging has been damaged battery.
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Indeed, we buy cell phone batteries should be very careful! Because the battery market, many of which are domestic mobile phone brand cell paste labels of various foreign sale, and then selling the goods as imports. So often people think that buy their imported batteries, but they were found to buy a new battery standby time better than buy a mobile phone battery attached to a long time. There was an example of such a person obviously buy original lithium battery imports, shorter than the original battery standby time 7-8 hours. Theory back to find stores, shops are irresponsible given the answer, with a bunch of jargon perfunctory. For example, excessive use of cell phone battery, charging is not correct, the phone too far away from the launch pad and so on. While these are all affect the power consumption, but the performance is very unlikely it so much worse! Therefore, in the purchase of mobile phone battery is best to find a credit, reliable store to buy a good reputation, it is not easy to lose. Pu Sanofi mobile phone batteries as the domestic brands, in this area is still very good.
Step 1


All products need in your home or using the battery. Add the size and type of batteries needed for each product. Some items including digital cameras use batteries, digital recorders, CD players, MP3 players, remote control, tools, flashlights, and children's toys.

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Step 2


Make sure all the battery size you need from your list. Some families will find that they only used the AAA level and AA batteries. Other families may find that they actually use AAA grade, AA grade, C and D batteries. Home Hurricanes are common in areas may find they need a lot of C flashlight batteries.




Step 3


The list to determine which will save you from the rechargeable battery to switch to the most profitable projects. Circle the items and scale to make it more clear.




Step 4


Consider switching some of the project, you typically use rechargeable or pre-charge the battery of rechargeable battery on a regular basis. Mark on your list, you want to switch charging to the project on a regular basis. New pre-charge rechargeable battery and hybrid is to maintain the 85% one year after the rechargeable battery to stay in storage, which will make your projects, such as remote control switch and LED reading light, a new pre-charge the battery and hybrid batteries choice.
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Step 5


Determine a battery charger and flexible price range to suit your needs. Remember, the battery charger, charging only the price of a variety of sizes than AA or AAA rechargeable batteries Rechargeable battery charger and more.Also consider a new rechargeable battery number, you need to buy a standard replacement battery, and note how each size, you need a lot of switching. You may want to consider battery charger kit, with several different sizes of batteries to.

How to buy battery charger

Default Category 2010-11-30 16:24:42 Read 32 Comments 0 Font Size: medium and small Subscriptions AC adapter laptop keyboard lcd screen

How to buy a battery?
(1) First, the request should be based on electrical appliances, select the battery type and specifications of size and power consumption based on the size and characteristics of electrical appliances, decided to buy what type of battery, such as the BP machine is generally used in alkaline manganese batteries, remote control generally used in ordinary manganese dioxide batteries can meet the requirements;
(2) preferred management recommended by the battery industry products, the purchase market, sales volume, high quality, brand-name batteries;
(3) Note check the battery's shelf life, the recent purchase of the production of batteries, for those who do that by substituting the shelf life of batteries are generally difficult to identify the time of purchase, should be added to ask;
(4) Note check the battery appearance, without signs of leakage;
(5) shall be marked on the label manufacturer, battery polarity, the battery type, nominal voltage, trademarks, etc., should be looking to purchase alkaline batteries, or LR model or whether ALKALINE words.laptop batteryAcer AC Adapters

How to store batteries?
There are generally inside the battery self-discharge phenomenon, commonly known as "run electricity", the battery storage time and temperature on the storage environment, especially have great influence, usually the longer the storage time, the higher the temperature, the battery "running power," the more ; the higher the temperature, humidity, the greater the conductivity of the battery contacts will rust and easy to use, and also increase the battery's "run electricity", so the battery storage conditions:
(1) Battery storage area should be clean, cool, ventilation;
(2) The temperature should be between 10 ~ 30 ℃, generally should not exceed 40 ℃; the relative humidity is generally not more than 65% is appropriate.compaq AC Adapters dell AC Adapters hp AC Adapters
(3) is not easy too long storage time, storage should be arranged in neat rows, not the positive and negative connected to short-circuit the battery.


What precautions to use the battery?
(1) Check the electrical and battery contacts are clean, wipe with a damp cloth when necessary, to be dried into the correct polarity;
(2) Do not mix old and new batteries, the same model but different types of batteries can not be mixed;
(3) can not use heating, charging or other means to make a battery recycling;
(4) can not short-circuit the battery
(5) Do not disassemble the battery, do not heat the battery;toshiba AC Adapters Dell laptop keyboard
(6) electric appliances after use should be cut off at the beginning of long-term should not remove the battery.

This time Zhang came, and we have a dedicated marketing department, to build the network. Including Shenzhen car, how to care for users, how to maintain, and how to sell, one to one marketing that question. Through the development of this decade, by two to three years should be able to achieve operating break-level units sold.Laptop ac adapter AC adapter 

Moderator: companies from marketing network in this regard is to force.

Fang Yun Zhou: From the service, just mainly about the sales model, sales model, we explore the pure electric car is pure electric vehicles, hybrid is a hybrid, we are different markets for private cars to do different sales model .

Moderator: We now explain their situation Zhengzhou Nissan.Toshiba PA3107U-1BRS Battery,

Yu-Min Wang: Zhengzhou Nissan has three models, there are four models in the notice, Ruiqi operations during the demonstration. When people talk about the whole industry chain forum, I would like to operate services from the market and operational security to talk about this piece is how Zhengzhou Nissan to the power of our industry.

We have operations throughout the demonstration in the power industry and the telecommunications industry, we truly demonstrate operational service this one, because the real demonstration of operation to do because the industry has just begun, there are a lot of use mode, is not complete, including infrastructure. To be honest, our country engaged in demonstration operations I think that is the right choice, in the service guarantee, we did the first Zhengzhourichan dynamic monitoring, we have established a complete set of dynamic monitoring system.

We first start operations in 2006. Another user of the service guarantee, I think the first incumbent in addition to OEM services to bear the responsibility of the user, the core of our electric vehicle parts, to the common to the user, to the industry to the force, as we have universal electric car Battery users of our common security services one on one, after so many years, four years of operation, some quasi-commercial operations, is a continuous uninterrupted operation, our first service the majority of users, the second has also been Many first-hand information and data.laptop keyboard lcd screen

Ye Hao Beijing Olympic Games, Shanghai World Expo Ye Hao, in the service and protection, first by the government to lead the same time, enterprises, this is a big event we are very concerned about. But the real demonstration of electric vehicle operating state, the general users of our purchase, it's service guarantee, it is very important operational guidance, just about the training manager, including the use of the process of repair, this is very important. I think not the government to force companies to power, I think it is a multi-force, our whole industrial chain to the force.

Moderator: Well, to force the issue more complicated, not only which aspects of the problem.

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Geely say a few words from a technical point of view to the force.

By the Yi: Technically speaking, from a business perspective, in addition to new energy itself, the battery to the motor,Toshiba PA2487U Battery, there are other relevant parts enterprises, need these efforts together, the pure electric cars do the same with the reliability of conventional vehicles , Toshiba PA2487U Battery, Toshiba PA3107U-1BRS Battery, Toshiba PA3383U-1BRS Battery, Toshiba PA3384U-1BRS Battery, Toshiba PA3285U-1BRS Battery, Toshiba PA3191U-1BRS Battery, Toshiba PA3166U-1BRS Battery,the same comfort.

Moderator: You talked about this issue just Guoyuan Shi small model, we transition from 2007 when we raised the slogan, but the problem is not only the quality of manufacturers, Guoyuan Shi talked about small lightweight applications.

By the Yi: We are very recognized Guoyuan Shi such a view, we have developed a lot of early cars, more models in the existing body to do some improvements to meet the pure electric car, or plug-in cars, we now do the new structure, such as lithium ion, and specifically for the development of pure electric vehicles, is a three-meter-long car, should be more suitable for city use.

This is the inside from the body structure, chassis, including the suspension on the chassis are developed for pure electric vehicles, there are now lightweight, Geely is also undertaken national projects, we also integrated into the lightweight car inside. Also no increase in body weight, cars are very good results.

Fang Yun Zhou: We sold years ago this year, about five in 2010 almost six hundred.

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Moderator: Thanks to a few, I hope our country's new energy vehicles, and electric vehicles do better, but also to the whole energy conservation, to the automotive industry can do more contribution to the progress and development, thank you!

New energy vehicles demanding on the battery, Toshiba PA3399U-1BAS Battery you must have high specific energy, high specific power, fast charging and deep discharge performance, but also for the cost as low as possible, the use of life as long as possible. The traditional lead-acid batteries, nickel cadmium batteries and nickel-metal hydride battery technology itself is relatively mature, but they are used in car batteries as a power then there is a big problem. Currently,Toshiba PA3331U-1BAS Battery, Toshiba PA3098U-1BAS Battery, Toshiba PA3084U-1BAS Battery, Toshiba PA3399U-1BAS Battery, more and more car manufacturers to choose energy lithium batteries as a new car battery.

Li-ion battery has the following advantages: small size, light weight, high voltage (a nickel-cadmium batteries, nickel hydrogen batteries 3 times) than the energy of large (up to 165WH / kg, nickel-hydrogen battery is 3 times), life cycle Long, self-discharge rate, no memory effect, no pollution, safety and good.

Currently impeding the development of lithium-ion battery power is the bottleneck: safety performance and vehicle power battery management system.

Safety performance, the lithium-ion battery with energy density, high working temperature, poor working conditions and other reasons, coupled with the safety of people-oriented concept, so the battery safety of users made a very high demand. Vehicle power battery management system, since the vehicle power battery voltage is 12V or 24V, and a single lithium-ion battery voltage is 3.7V, so must the number of cells in series and increase the voltage, but difficult to achieve due to the battery completely homogeneous charge and discharge, leading to a number of battery packs in series within a single battery charge and discharge occur imbalance, deficiencies and charge the battery will appear the phenomenon of over-discharge, and this situation will lead to a sharp deterioration in battery performance, and ultimately lead to the entire group of cells does not work, or even scrapped, thus significantly affect battery life and reliability.dell AC Adapters hp AC Adapters

Li-ion battery electrode materials can be divided into two (positive / negative) materials, separator and electrolyte. Lithium battery cathode material is the core of the current lithium cobalt oxide, lithium manganese oxide, lithium nickel-cobalt-manganese-based lithium iron phosphate. Zeyi graphite anode materials,Toshiba PA3084U-1BAS Battery, carbon-based solid; in the middle of the positive and negative is the battery electrolyte and separator.

1. Cathode material:

Previously, the reason why the cost of lithium batteries than nickel-hydrogen batteries, mainly on the cathode material used in its precious metals cobalt as raw material is lithium cobalt oxide, lithium manganese oxide and lithium iron phosphate as the cost advantage is more obvious; However, with lithium manganese oxide compared to the capacity of lithium iron phosphate higher density, the former 100-115mAH / g, which is 130-140mAH / g; charge and discharge longer life, more than 500 times the former, the latter up to 1500 above; operating temperature range greater, the former from 0 to 50 ℃, which was -40 to 70 ℃. Therefore, in the lithium-ion batteries, lithium iron phosphate most promising.Acer AC Adapters compaq AC Adapters 

In the lithium battery industry chain comparison of the current production capacity, due to high barriers to entry, capacity lithium battery cathode material is the smallest, which is the whole industry chain, the most promising aspect. The current production of cathode material companies are: China Baoan, CITIC Ann Shanshangufen, BYD.

Shanshangufen (600,884): holding company in Shanghai Shanshan Tech, Toshiba PA3331U-1BAS Battery, Toshiba PA3098U-1BAS Battery, Toshiba PA3084U-1BAS Battery, Toshiba PA3399U-1BAS Battery, lithium-ion battery cathode material sales revenue has become the largest in the world top three in the cathode material suppliers. However, its 2008 gross margin was lower than the industry should have the lowest level, only 14.21% gross margin. It is understood that Shanshangufen the lithium cathode material, the production of lithium and lithium cobalt manganese are not the industry's most promising lithium iron phosphate, but technically do the tracking. Cathode material, high-profit, Shanshan was "just do not do income profits", the negative electrode material technology, Toshiba PA3098U-1BAS Battery, but the lack of support for the lower gross margin overall performance of lithium battery production.laptop keyboard lcd screen laptop battery

CITIC Guoan (000 839): As one of the few lithium battery industry has two key links in the chain - upstream and downstream lithium carbonate lithium-ion battery company. Qinghai CITIC Guoan currently holds 99.375% stake in national security, mainly in Qinghai Lake in western taijnar lithium, potassium, boron, magnesium and other resources in the comprehensive development. Salt Lake taijnar West Qaidam Basin is located in the middle of the design capacity calculated according to the above resources for at least 25 years of mining companies, the potential economic value of 170 billion yuan. Lithium carbonate addition to the upstream resources, holding 90% of CITIC Guoan, a subsidiary of CITIC Guoan MGL, is the largest lithium-ion secondary battery cathode material of lithium cobalt oxide and lithium manganese oxide production enterprises, accounting for lithium cobalt oxide domestic market share of 40%.

China Baoan (000009): The company shares the Tianjiao technology is a set of lithium batteries is grade material development, production and sales of high-tech enterprises, the company's main product is nickel-manganese cathode materials for lithium cobalt oxide (cathode triple material).

2. Anode materials:

Compared with the cathode material, lithium battery anode materials accounted for the proportion of low cost, and the domestic industry has been achieved, the negative electrode materials, graphite, solid carbon-based. Currently engaged in the production of lithium battery cathode material, the top three companies is China's national security, Shanshangufen, long sand sea capacity, the current negative electrode materials to meet the basic needs of the domestic market, but with the increasing popularity of new energy vehicles, the future market for this one demand will be a huge gap.Laptop ac adapter AC adapter 

China Baoan (000009): Baoan, Shenzhen Bei Terui holding 55% of China's subsidiary, is the standard Li-ion battery carbon cathode materials makers.Toshiba PA3331U-1BAS Battery, The capacity of carbon anode material is 6,000 tons / year, price is 60,000 yuan / ton, up to 80% market share, ranking second. Clients include Panasonic, Hitachi, Samsung, TCL, BYD more than 130 manufacturers. In 2008, Bei Terui the acquisition of Prudential Tianjin Railway Company, to carbon negative material costs decreased by 30%. Although business is booming subsidiary of battery materials, but limited by the overall size of the market, listed companies in China Baoan, contributions from the performance of battery materials is difficult to rely on. China Baoan main business is real estate and medicine, the first half of 2008 accounted for over 90% of revenue, including lithium, including other income accounted for less than 9%.