Electrolyte composed of polyethylene glycol.
Flexible packaging lithium battery is another name for polymer battery. Compared with cylindrical and square lithium batteries, they have the advantages of small size, light weight, high specific energy, high safety and flexible design. The difference between them mainly lies in the stainless steel shell or aluminum shell used for square batteries and cylindrical batteries. Flexible packaging batteries use an additive manufacturing method, so their volume and weight are smaller when the volume density and weight are the same.
Detailed information:
Keep the battery compartment flat: make sure the battery is in a flat plate state under uniform force, otherwise colViolent readings could cause the battery positive and negative electrode materials to pierce through the separator. , lithium ions precipitate, come into contact with air, or even a short circuit occurs, the temperature rises, causing combustion or even an explosion.
High-rate discharge and overcharge are prohibited: If the heat accumulated during high-rate charge and discharge cannot be transferred, it will seriously affect the safety and service life of lithium batteries. In places with steep slopes, it is best to drive at low speed or use pedal assist to avoid excessive battery current, which may affect safety and battery life.
Baidu Encyclopedia - Lithium Battery
There are three types of lithium batteries, lithium manganate and lithium iron phosphate and AlthoughTernary material batteries and ternary materials have been developed at home and abroad, the element cobalt is increasingly rare and its cost is high. It is difficult to apply it to power lithium batteries in large quantities. manganese acid Lithium is mixed within a certain range, so the most promising batteries for future energy currently are lithium manganate and lithium iron phosphate.
When Guodian Lithium Battery was just beginning to develop, Japan focused on lithium manganate and the United States focused on both materials. A few years later, Japan achieved great success and A123, the largest lithium iron phosphate company. in the United States, the world's leading lithium iron phosphate company's products have not been included in major electric vehicle bidding projects. At the cUnlike this, lithium manganate has seen good development in Japan.
In China, the government and enterprises vigorously promote lithium iron phosphate.
As a result, the development of lithium manganate in China has been suppressed. However, electric vehicle accidents have occurred. one after another in the recent past, all of these are caused by lithium iron phosphate. The reason is that lithium iron phosphate contains iron ions, which will transform into iron elements under special circumstances, causing internal micro-short circuits. substance in batteries. This is why Japan did not consider lithium iron phosphate at first.
Only with lithium manganate, except for high temperature performance defects, other properties are very excellent. However, current research on lith manganate modificationium is progressing very well and Japan has almost overcome the problem. of lithium manganate Defects, but the lithium manganate product modified by AL doping by a domestic manufacturer is not inferior to that of Japan.Name, facts have proved that its performance is very excellent.