Common safety hazards in lithium batteries primarily stem from thermal runaway, which can lead to fires, explosions, or electrolyte leakage. The core of prevention lies in avoiding battery overheating, overcharging, and physical damage.
I. Common Safety Hazards
Thermal Runaway: This is the most critical hazard. Factors such as internal short circuits, overcharging, or high-temperature environments can cause rapid heat accumulation and loss of control, ultimately leading to fire or explosion.
Overcharging and Over-Discharging: Overcharging damages the structure of the battery's positive electrode material, generating gas and heat; over-discharging damages the negative electrode, reducing battery performance and increasing safety risks.
Physical Damage: External forces like crushing, impact, or puncture can disrupt internal battery structures, directly causing internal short circuits that trigger thermal runaway.
Electrolyte Leakage: Damaged or aged battery casings may leak corrosive electrolyte, potentially damaging equipment and causing skin irritation.
II. Core Prevention Measures
1. Charging Procedures
Use the original manufacturer's charger. Avoid mixing chargers of different brands or models to prevent voltage or current mismatches.
Avoid prolonged charging at full capacity. Disconnect the battery promptly after it is fully charged, especially during overnight charging or when unattended.
Do not charge in high-temperature or humid environments, such as windowsills exposed to direct sunlight or bathrooms.
2. Daily Use
Avoid exposing batteries to prolonged high temperatures, such as leaving them in a hot car during summer or near heat sources like fireplaces or radiators.
Protect the battery from physical impact. Avoid squeezing or dropping the device. Do not store the battery with keys, coins, or other metal objects to prevent accidental short circuits.
Replace aged or damaged batteries promptly. If you notice any swelling, deformation, leakage, or abnormal heating, stop using the battery immediately.
3. Storage and Transportation
When storing batteries, maintain a charge level between 30% and 50%. Avoid long-term storage in fully charged or completely discharged states. Store in a cool, dry place.
When transporting lithium batteries, use insulated packaging to store them separately. Avoid contact with other metal objects. Do not check large-capacity lithium batteries as baggage; carry them on board and comply with airline regulations.
Post time: Oct-22-2025