Separator
Separator: a key component located between the cathode and anode of a cylindrical lithium battery, made of high-strength, thin-film porous material, which separates the active materials of the cathode and anode, prevents direct contact between the two poles and short circuits, while allowing electrolyte ions to pass through to maintain the electrochemical reaction inside the battery; Isolation of cathode and anode, ion transport channel, liquid absorption and moisturizing ability, thermal stability.