There are three key reasons for the swelling of lithium batteries:

The first reason: the manufacturer's manufacturing process problems
Due to the large number of manufacturers, in order to save costs, many manufacturers make the production environment difficult, and replace them with mechanical equipment that will be eliminated, resulting in uneven battery coating and infiltration of lithium battery electrolyte into dust particles. These will promote the bulging phenomenon of lithium battery packs when used by users, and even greater dangers.

The second reason: daily usage habits of users
The second one depends on the user. If the customer makes mistakes in the application of lithium-ion products, such as overcharge and over-discharge of the battery, or extreme deterioration of the natural environment in the continuous application of the environment, it will cause the lithium battery to bulge.

The third reason: long-term no need or proper storage
If various goods do not need to be used for a long time, the original characteristics are mostly reduced, the battery is not used for a long time, and the storage method is not good. When it is permanently exposed to the air, it will not be applied and charged. Because the gas has conductivity to a certain extent, it is equal to the direct contact of the rechargeable battery for a long time, and the short-circuit fault spreads. Once the short-circuit fault generates heat, part of the electrolyte solution will dissolve or even evaporate, resulting in bulging.

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