Soft wrap polymer battery, when the battery swells. From the molecular level, the hole structure of the positive and negative electrodes that accommodate lithium ions will gradually collapse and block; from a chemical point of view, the positive and negative materials are actively passivated, and side reactions occur to generate stable other compounds. In physics, the positive electrode material will gradually peel off, etc., which reduces the number of lithium ions in the battery that can freely move during charging and discharging.

Soft pack polymer battery due to the use of solid electrolyte, will not leak explosion, will only expand, so more secure.

Soft pack polymer battery swelling reasons:

1. Due to poor battery quality or battery life, the internal chip of the battery is damaged

2, with inferior charger caused by overcharging, damage to the battery core

3. Low voltage bulge caused by long battery discharge and lack of power

Therefore, do not play with mobile phones while charging, do not use fake and inferior chargers, and do not charge batteries at high temperatures. The root cause of explosion is overheating. As a micro-chemical reaction space, the battery itself is very sensitive to temperature requirements. When the temperature is too high, it will speed up its chemical response, which will lead to explosion in serious cases. In fact, mobile phones have safety mechanisms, if the temperature exceeds a certain value, the system will protect itself to achieve the purpose of cooling.

At present, there are many places that can contact the soft-packed polymer battery, but there are not many accidents. Therefore, the current battery technology is relatively reliable, and the normal battery is safe under normal use conditions. As long as the soft-packed polymer battery does not come into contact with water or is damaged, the material inside does not come into contact with the air, do not store too high temperature and other dangerous circumstances, the battery is safe.