Polymer lithium-polymer battery is used as electrode and laptop battery electrolyte materials, a battery, according to the battery positive and negative uses of different materials, which there are many different types of polymer batteries.
Lithium-polymer batteries have a higher energy density can be small and thin, lightweight, high security and low cost, lithium polymer batteries in its construction, at least one or more polymer materials used as the primary battery systems .
In shape, the lithium polymer battery has be thin, then it can of any size and any shape and so a number of advantages: First, the carbon anode material, not only wide variety ThinkPad T40 of sources, you can also get high-speed battery-discharge effects; 2 is due to Lithium-ion embedded carbon in order to address the safety of lithium-ion battery is not the issue; 3 is a comprehensive performance, charging speed.
Lithium-ion polymer batteries with high plasticity of form, and the ultra-light, ultra-thin, high-capacity, non-leakage and high security, while lead, no mercury, no cadmium and other toxic elements that are truly environmentally friendly battery, on the environment is not will lead to any contamination.
Polymer battery with gel electrolyte, with a stable discharge characteristics and higher discharge plateau. And have high power tolerance, even if the high-power charge-discharge, high frequency use, can quickly complete the process of charging is completely non-memory effect, the ThinkPad T41 battery charge-discharge efficiency are 99.8% of charge retention ability, on charge retention rate of more than 95%. With the best internal consistency to ensure that each "charge-discharge" process consistency to ensure that the overall battery life of the longest.
Polymer lithium battery on the use of plastic flexible packaging in the structure, in the event of safety problems, polymer batteries will be the drums. Safety performance should meet the following conditions:
(1) short-circuit: No fire, no explosion
(2) Overcharge: No fire, no explosion
(3) hot-box test: no fire, no explosions (150 ℃ temperature 10min)
(4) acupuncture: Not explosive (with ะค3mm nail penetration batteries)
(5) Flat Impact: No fire, no explosion (10kg weight from a height 1M pound batteries)
(6) Burning: Not explosive (gas flame barbecue batteries)
Polymer lithium battery charging method:
At present polymer lithium battery charging method commonly used constant current constant voltage charging: constant current charging the ThinkPad T42 battery first by CC, when the battery voltage rises to a certain value (4.2V), the voltage remains the same CV, the circuit current is reduced to a very and finally tends to 0.
Polymer lithium battery electrochemistry principle:
Polymer lithium-ion battery is the Li + intercalation compound as the positive and negative secondary battery. Positive use of lithium compounds LiCoO2, LiNiO2 or LiMn2O4, negative use of lithium - carbon intercalation compounds LixC6, a typical battery system as follows:
(-) C | LiPF6-EC + DEC | LiCoO2 (+)
Positive reaction: LiCoO2 = Li1-xCoO2 + xLi + + xe------------ (2.1)
Negative reaction: 6C + xLi + + xe-= LixC6 ----------- (2.2)
Battery overall reaction: LiCoO2 +6 C = Li1-xCoO2 + LixC6 ----------- (2.3)
Polymer lithium battery overcharge of the consequences of
Polymer ThinkPad T43 lithium battery can not overcharge, such as occurred in the performance of the battery charge on a great influence on deposition of lithium metal anode will occur, which may cause the battery explosion or fire, while the solvent electrolyte are decomposed, resulting in serious damage to cell performance .
Polymer lithium battery voltage options:
At present, the commercialization of lithium batteries used in cathode materials, anode materials and electrolyte in the electrochemical window in 4.5V above the basic, that is, when the battery charge voltage to 4.5V when the battery is still relatively stable. However, if the battery charging voltage is too low (eg less than 4.15V), would seriously affect the amount of battery charge, such as the battery charge voltage, if controlled at 4.13V, the battery charge of electricity into the battery capacity of about 60-80%, greatly affect the battery's performance.
In fact, the battery charge voltage and battery system, but not with the ThinkPad R50 battery discharge rate does not matter.
Use of attention to regulation:
I. Prohibition of the sharp parts collision cell;
Second, to prohibit the battery with metal objects together with transport or storage;
Third, to prohibit abandoned, falling, impact, bending the battery, prohibit the use of a hammer percussion or trampling battery;
4, the ban on metal objects such as wires to connect directly to short-circuit the battery positive and negative;
5 to prohibit the battery positive or negative with the batteries of the outer layer of plastic film material of aluminum-phase short circuit;
6 prohibiting the demolition of batteries under any circumstances;
7 to prohibit the battery water or sea water intrusion, batteries can not be damp;
8 is prohibited near the heat source (such as water, heaters, etc.) to use or put batteries;
9, prohibits the ThinkPad R51 battery heating or thrown into the water;
10, which prohibits direct welding battery;
11 to prohibit the Huopang or a very hot place to charge the battery;
12 to prohibit the battery into microwave oven or high-pressure container;
13 is prohibited at high temperatures (such as intense sunlight or hot car) long-term use may be placed on the battery, otherwise it would cause battery overheating, fire or functional decline, life expectancy reduced;
14, if the electrolyte leakage contact with the skin or other parts should immediately wash with water, electrolyte come into contact with eyes, rinse immediately with clean water after the nearest medical treatment;
15, prohibiting the use of already damaged cells, such as electrolyte leakage occurs or distribute the smell of battery electrolyte should stay FRU 08K8193 away from fire source in order to avoid battery fire or explosion.
Application of common sense:
1, the battery charger must be able to have a parallel constant current constant voltage and recharge function charger, the charge current should be better 1C5A the following charge, charge batteries when the load on each positive and negative electrode on the charging voltage exceeds 4.25V is strictly prohibited ;
Second, battery depletion can cause the battery performance, loss of function, the user should strictly ensure that every battery discharge termination voltage ≥ 2.75V;
Third, in order to better and more long-term use of the battery should be irregular charging the battery, so that voltage is maintained between each CELL3.6V-3.9V;
4, the battery charging temperature should be at 0-40 ℃, discharge temperature -20-60 ℃, Storage temperature 25 ± 5 ℃;
Temperature 0 ~ 40 ℃ is preferred when charging
5, strictly abide by the battery at 10% - 50% of the Dutch state transport;
Battery scrap processing:
Battery end of life, suggested that the 92P1060 battery plastic film cut a hole in with the scissors after the washing with water after a minute can be pollution-free disposal, or recycling by specialized agencies. Our battery can be recovered on behalf of the supply side.
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