Summer heat and batteries: more fire danger?

The fire danger of sun and heat for lithium-ion batteries and how to reduce the risk?

Lithium-ion batteries are ubiquitous in our daily lives year-round, from laptops, drones, walkie-talkies to power tools. Despite their many advantages, they also pose risks, especially when exposed to extreme temperatures. In this blog, we discuss the dangers of sun and heat for lithium-ion batteries and provide tips for safe charging.

The effects of heat and sun on lithium-ion batteries

1. Accelerated aging

Chemical reactions: High temperatures accelerate the chemical reactions within the battery, leading to faster degradation of the battery cells.

2. Reduced performance

Efficiency loss: High temperatures can reduce the efficiency of the battery, causing it to drain faster and deliver less energy.
Component damage: Internal components can be damaged by heat, negatively affecting the overall performance of the battery.

3. Increased internal pressure

Gas formation: Heat can lead to gas formation within the battery, increasing internal pressure and potentially causing the battery to swell or burst.

4. Risk of thermal runaway

Overheating: When exposed to high temperatures, the battery can overheat, leading to a chain reaction of further heating.
Fire hazard: Overheated batteries can lead to fires or even explosions, a phenomenon known as “thermal runaway.”

Heat-sensitive applications

Batteries that are often used in the sun are particularly sensitive to overheating, including e-bikes and e-scooters. But certainly also in the construction sector, green services, gardening and agriculture, where employees need their tools outdoors during the day and charge them unattended at night, there is an increased risk. It is crucial to use safe charging solutions here.

How can you safely charge your batteries in heat?

Charge in a cool, dry environment: Avoid charging batteries in direct sunlight or in hot spaces. Choose a cool, dry place to extend the life of your batteries and minimize the risk of overheating.
Use quality chargers: Always use chargers that are approved by the manufacturer of your device. Cheap or uncertified chargers can cause overheating and jeopardize battery safety.
Do not leave batteries unsecured: Batteries that have been used in the heat all day and may have sustained internal damage should not be charged unsecured. You can charge the batteries in charging cabinets or containers. At LOXXER, we provide the option to connect your (locker) cabinet or container to your existing fire central so that you are also alerted at night in case of danger.
Invest in safe storage solutions: Use fire-safe storage and charging cabinets or containers. The LOXXER charging cabinets and containers are equipped with temperature detection and mechanical ventilation to keep the heat within the cabinet within acceptable limits and minimize the risk of overheating.

Conclusion

Safely charging lithium-ion batteries starts with awareness and the right precautions. By investing in high-quality storage and charging solutions, you can not only extend the life of your batteries but also ensure the safety of your environment.