Safety Corner: Batteries
Handling batteries can be hazardous if proper precautions aren't taken, leading to serious injuries such as burns from short circuits, corrosive acid contact, and even explosions. As such, it is crucial to understand battery safety measures to protect yourself and others in the workplace. Today we’ll delve a little deeper into what makes up a battery, the hazards associated with handling them, and what you can do to minimize these risks.
A battery consists of cells, separators, a tray, and positive and negative terminals, called the anode and cathode. These connect to equipment via an external circuit, which causes electrons to move through the cell. This converts potential chemical energy to electrical energy. It’s important to note that there are several types of batteries, all featuring different chemicals in the cell. If you are using a rechargeable device, chances are it’s a lithium-ion battery. Car batteries, while rechargeable, use a lead-acid cell. Meanwhile, common AA type batteries use alkaline or a zinc-carbon blend. There are many other types of batteries, but these are the most common.
As of this writing, every type of rechargeable battery chemical is hazardous. This is why improper handling can lead to dangerous situations like battery explosions near the end of charging due to hydrogen fumes, skin burns from direct cell contact, and ergonomic injuries from misjudging size and weight. To prevent such incidents, consider the following safety measures:
Keep battery charging stations in enclosed areas or places that have barriers between them and people.
Charge batteries in designated charging areas.
If battery acid is leaking, pour it into water. Never pour water into acid, as this can cause an explosion.
Visually inspect removable batteries before use.
Keep battery terminals free of corrosion (the white flaky stuff you find on old batteries).
Never smoke near battery charging stations.
Wear personal protective equipment (PPE) such as goggles, face shields, gloves, closed-toe footwear, and aprons while performing maintenance on batteries.
Do not overcharge or undercharge batteries
Know where flushing stations and sinks are in case sulfuric acid contacts the eyes or skin.
Batteries are amazing pieces of technology, but they can also be very caustic and extremely dangerous. By prioritizing the measures above, you can create a safer environment for you, and everyone involved.