18650 Battery Insulation Gasket
The 18650 battery gasket is a heat-resistant insulation ring placed on the positive terminal of 18650 lithium-ion batteries. It provides protection against short circuits during assembly and spot welding.
Key Features:
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Material: Insulating fiber paper / polyimide (heat-resistant)
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Outer Diameter: 18mm
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Inner Diameter: 10mm
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Thickness: ~0.3mm
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Protects battery terminals from short circuits
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Essential for battery pack assembly and spot welding
Applications:
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18650 battery pack building
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Spot welding protection
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Battery DIY and repairs
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Electric bikes, power banks, and tools
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