EV battery
The performance characteristics of polymer lithium-ion battery
by:Vglory
2020-12-05
Source: 2020 -
03 -
25 'hits: the advantages of polymer lithium battery 1.
The working voltage of a single cell can be up to 3.
6 v ~ 3。
8 v, far higher than 1 of nickel metal hydride batteries and nickel-cadmium batteries.
2 v voltage.
2, capacity, density, and its volume density is 1 nimh battery or nickel cadmium battery.
5 to 2.
5 times or more.
3.
Small self-discharge, placed a long time, small capacity loss.
4, long service life, the normal use of the cycle life of up to 500 times more.
5.
No memory effect, no empty battery before charging, easy to use.
6.
Good safety performance of polymer lithium-ion battery with aluminum composite flexible packaging in the structure, different from the metal shell liquid battery, once the unsafe, it is easier for liquid battery explosion, and polymer battery will only courage.
7, thickness is small, can do thinner so thin batteries can be assembled into a credit card.
Ordinary liquid lithium battery using custom shell first, and then insert the positive and negative material.
When the thickness is less than 3.
6 mm, technical bottlenecks and polymer battery does not exist the problem.
Thickness can be less than 1 mm, which conform to the requirements of mobile direction.
8.
Light weight polymer electrolyte battery don't need metal shell as the protective layer.
Polymer battery is 40% lighter than steel of the same capacity lithium battery, battery 20% lighter than aluminium.
9.
Large capacity polymer battery is higher than the same size and specifications of the steel battery 10 ~ 15%, 5 ~ 10% higher than the aluminum battery.
It has become a color of choice for mobile phones and MMS.
At present, most of the new color screen and MMS mobile phone on the market also use polymer battery.
Battery internal resistance is small polymer battery internal resistance is less than the liquid, the current domestic polymer battery internal resistance and even can do below 35 m Ω, greatly reducing the battery power consumption, extend the standby time of mobile phone, can be achieved with the international level.
The polymer lithium battery, support the large discharge current, is the ideal choice of the remote control model, is the most promising for nickel metal hydride batteries.
11.
Shape can be customized manufacturer does not restrict their standard shape, can make them the right size on the economy.
Polymer battery can according to customer demand increase or decrease the thickness of the battery, the battery model to develop new, cheap, mold cycle is short, some can even customize according to the shape of mobile phones, make full use of the battery shell space, increase the battery capacity.
12.
Good discharge characteristic polymer battery using gel electrolytes, has the stable discharge characteristic, the discharge in liquid electrolyte is higher than platform.
13.
Guard simple design with high polymer material, battery is not on fire, explosion, the battery itself has enough safety, so the design of the high polymer battery protection circuit can consider omitting PTC and fuse, thereby saving the cost of battery.
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