With lithium-ion batteries powering devices, equipment, vehicles and new technologies, it’s important to understand how ambient temperature can affect the safety and performance of the battery. Room temperatures can directly affect the temperature inside the lithium-ion battery — and this will affect how safe the battery is and how it performs. 

E1. Operation of Li-ion Batteries.

Lithium-ion batteries operate through the movement of ions between the positive and negative electrodes. When the battery is discharging, the negative electrode moves through the electrolyte to the positive electrode. The process is then reversed when the lithium-ion battery is being recharged.

During this complex process, many factors can decrease the battery performance and its safety. The ambient temperature of the battery storage area —as well as li ion battery handling and charging/discharging practices — can all adversely affect the stability of the battery cell.

E2. Ideal Temperature For Lithium-Ion Batteries.

Lithium-ion batteries should be ideally stored in cool, dry conditions at a temperature of 15°C. The general temperature range for lithium-ion cells lies between 5°C and 25°C. If temperatures are too cold, such as 0°C, it can result in a loss of capacity due to the chemical reactions inside the battery slowing down due to the low temperature. If conditions are too hot, it can result in hazards such as fire and explosion.

Just like any type of hazardous chemical or substance, it’s vital that you always read and follow the manufacturer’s instructions when handling, charging and storing your lithium-ion batteries.

Keeping batteries at a safe temperature can be difficult in a hot environment such as Australia. That’s why it’s crucial to consider storage options that include temperature control measures which can reduce humidity and heat. 

Storing and charging your batteries in a controlled environment at a safe ambient temperature is one of the most significant things you can do to reduce the risk of fire and explosion.