Lithium-Ion Battery Safety
See OSHA Fact Sheet: Lithium-ion Battery Safety
Prismatic Li-ion battery cell on fire Potential risks include fires, explosions, and exposure to harmful chemicals.
Preventing Damage to Your Lithium-ion Batteries
For battery safety it is important to prevent damage to your lithium-ion batteries. Damage to lithium batteries can occur immediately or over a period of time, from physical impact, exposure to certain temperatures, and/or improper charging.
Mechanical abuse – the crushing or penetrating of a battery cell causing the separator to deform or tear through physical force exerted on the battery. Try not to drop your lithium batteries.
Thermal abuse – when batteries are exposed to high temperatures, around 150 F or greater depending on the cell type and battery chemistry, the separator can become damaged or may collapse.
Electrical abuse – repeated over/undercharging can lead to dendrite growth. Dendrites are a branch-like structure that forms on the anode or cathode and can grow to pierce the separator. Charging a device or battery without following manufacturer’s instructions may cause damage to rechargeable lithium-ion batteries. For example, some manufacturer-authorized chargers will cycle the power to the battery on and off before it is fully charged to avoid overcharging. Since ultra-fast chargers may not cycle power, do not use them unless the manufacturer’s instructions include them as an option.
Water exposure can result in corrosion to the battery electrodes and may lead to failures similar to mechanical or thermal abuse.
After the battery experiences one of these types of abuse, it is considered DDR per DOT.
A Feb 5, 2026 article in EHS Today summarizes that health care facilities can help reduce these dangers by taking practical safety steps such as:
- Implementing hazard controls during battery design and production
- Ensuring proper ventilation
- Storing batteries in cool, dry locations
- Monitoring storage areas for flammable or toxic gases
- Using designated recycling facilities for disposal
- Providing safety showers and eyewash stations when handling battery mate




