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.

JUNLEE Group is an integrated full power energy factory that specializes in Uninterruptible Power Supply (UPS), Lead-Acid Battery, Battery pack, EV battery, Energy Storage Battery, Energy storage power station, Power pack Gel battery, PV Inverter and Solar system.

Production capacity reach 200000 KVaH per month. Products apply to Electric vehicles,electric mobility, solar & wind energy storage system, UPS, backup power, telecommunication, medical equipment and lighting.

JUNLEE sets up "Power research center" with more High-tech products.More than 100 engineers provided in-time and efficient one-stop solutions.
They mission strives to bring green power to the world.
To learn more about Li-ion batteries, please refer to https://www.junleepower.com/