1. High degree of internal polarization; 2. The film absorbs water, and the electrolyte of lithium battery reflects the air drum; 3. The quality and characteristics of lithium battery electrolyte are poor.
Excessive charging leads to too much lithium release, and the negative pole capacity is insufficient. The lithium generated during the charging process cannot be inserted into the inter -layer structure of the negative polar graphite, and metal lithium will be formed on the negative surface. For a long time, lithium molecules will grow from the negative surface layer to the lithium -ion battery growth mesh crystal structure. This lithium metal crystal will cause a short -circuit failure through the membrane. Sometimes, the rechargeable battery will explode before the short -circuit failure, because raw materials such as lithium battery electrolytes will destroy the steam, causing the battery sleeve or pressure valve to rupture, causing carbon dioxide to react with the lithium atoms deposited on the negative surface layer, and then explode
Some people buy an electric car and don't use it for a long time. After a few months of riding, they find that the electric car is dead and can't be charged. Plug in the charging head, the signal indicator light is always green, this is because the lithium battery voltage is too low, and the charging head output voltage difference is too much.
The volume of large 18650 lithium battery volume is generally 1200mah~3100Mah, and the general battery power is only about 800, if it is fused in the 18650 lithium battery, then the 18650 lithium battery can easily improve 5000Mah.
Lithium ion battery: low carbon, environmental protection, does not contain lead, mercury, cadmium and other harmful heavy metal elements and chemicals, no matter in production, application or waste. Batteries and solid-state batteries often contain other heavy metals such as mercury, lead and cadmium; This kind of heavy metal element has the great toxic side effect, causes the environment pollution to soil layer and the water quality
Excessive charging causes lithium battery expansion. Excessive charging batteries will cause lithium molecules in the battery positive material to fully enter the battery positive material, resulting in the original circular square deformation and collapse at the positive pole stage. This is a decrease in the capacity of lithium iron phosphate batteries Key reason. With the increase of the total number of lithium -ion batteries in the negative electrode stages, the excessive sedimentation of lithium molecules has grown it into a branches -like crystal, which increases the lithium battery. Drumbar caused by power loss
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