First of all, it is stated that battery expansion and short-circuiting are two different things and cannot be regarded as the same.
Bumps are not necessarily a safety hazard, but a short circuit can cause burning and explosion. However, it must be noted that, to a certain extent, the battery pack may also have potential risks. When there is a bulge, as long as you stop charging and using it in time, it is basically safe.
Let’s first understand the battery bulge.
Simply put, the battery bulge is due to the reaction of the battery electrolyte, which produces a large amount of hydrogen, carbon dioxide and alkane compounds, which squeezes the battery case and expands the battery case.
The main reasons for gas generation are as follows: battery overcharge, battery overdischarge, battery affected by high temperature, long battery life, battery design defects, and other unexpected situations (such as welding burrs piercing the battery surface, etc.).
How to avoid battery bulging?
- Don’t charge for too long;
- Use the original charger;
- Keep the charging environment dry and cool, and avoid charging in high temperature and humid environments.
What should I do if I find the battery is bulging?
- Take care to avoid squeezing or puncturing the expanded battery to prevent short circuit;
- Suspend the use of damaged mobile phones and place them in a safe place to prevent serious accidents;
- Contact the manufacturer to deal with, whether it is after-sales or replacement, coordinate with the manufacturer;
- If the mobile phone has expired, please do not discard the drum battery directly, and contact the battery recycling factory for proper disposal.
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