A lithium-ion battery, despite its high energy density and efficiency, can be prone to hazardous events like thermal runaway, overcharging, or excessive heat buildup. When this happens, internal pressure in the battery rises significantly. If left unchecked, this can lead to battery swelling, leakage, or even explosions. This is where lithium battery valves come into play. They are designed to vent excess pressure from the battery, ensuring that any gas buildup is safely released before it becomes a danger. These valves are integral to the safety and overall functionality of lithium-ion batteries, particularly in high-stakes applications like electric vehicles (EVs) and energy storage systems.