Lithium-ion batteries are everywhere, powering everything from your tools and gadgets to the devices you rely on daily. Despite their convenience, these batteries come with risks, particularly when they’re damaged, mishandled, or improperly charged.
A recent incident at a hospital highlighted these dangers: a lithium-ion battery from a workstation on wheels (WOW) caught fire, forcing an evacuation. During the subsequent inspection, other batteries in the hospital were found to have cracked casings, indicating potential damage. It’s suspected that these batteries were jolted or dropped while being placed in charging cradles, leading to this hazardous situation.
Why Lithium-Ion Batteries Pose Risks
Lithium-ion batteries are favored for their power, rechargeability, and compact size. However if not handled correctly, they can be dangerous. Overheating can cause these batteries to catch fire, and once ignited, the flames are difficult to extinguish. Additionally, the smoke from a lithium-ion battery fire is highly toxic.
So, what leads to these batteries overheating and catching fire?
Here are the main factors:
Physical Damage: Cracks or other signs of damage can compromise battery safety.
Improper Charging Equipment: Using chargers not specifically designed for the battery can result in overheating.
Frequent Handling or Chemical Use: Excessive handling or incorrect cleaning products can damage the battery over time.
Lithium-ion battery fires are notoriously hard to put out, and the smoke they produce is hazardous. This risk is especially significant in environments where evacuation is challenging, such as hospitals or care facilities.
Practical Steps to Minimize Risk
To ensure safety when using lithium-ion batteries in your work environment, consider these proactive measures:
Select Safe Locations: Keep batteries away from high-risk areas. For instance, in places where quick evacuation is difficult, consider using mains-powered devices instead. Avoid storing or charging batteries in heavily occupied spaces.
Opt for Safer Alternatives: If there are less risky battery options available, consider switching. Newer battery technologies may be less prone to overheating.
Invest in Technology: Smart chargers or software that monitors battery health can automatically disconnect power if problems arise, preventing minor issues from escalating.
Handle Batteries Carefully: Minimize battery handling to prevent damage. For instance, retrofit equipment to reduce the frequency of battery swaps.
Designate Storage and Charging Areas: Store and charge batteries in a separate, fire-resistant area equipped with smoke alarms and sprinklers.
Conduct Regular Inspections: Implement a routine for inspecting batteries for signs of damage, such as cracked casings. Ensure that only trained personnel handle battery maintenance.
Have an Emergency Plan: Prepare a clear plan for battery fires, including evacuation routes. Emphasize that attempting to extinguish a battery fire without proper equipment is dangerous.
While lithium-ion batteries offer significant benefits, their risks require careful management. The recent hospital incident underscores the importance of not taking these batteries for granted. By following the outlined steps, you can greatly reduce the risks associated with lithium-ion batteries in your workplace.
Remember, maintaining safety is as crucial as ensuring your equipment operates smoothly. Take the time to review your battery usage, storage, and charging practices to protect both yourself and those around you.