Battery sealing plate coated with protective film and battery sealed with the same
AssigneeToyo Kohan Co., Ltd.
InventorsKinji Saijo, Hiromasa Suzuki
Life of this patent
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Abstract
A closing plate for a battery comprises a metal substrate provided with a safety valve at a peripheral portion thereof. The safety valve is protected by applying a protection film to the metal substrate of the closing plate. The closing plate comprises a metal substrate, metal foil which is adhered to the lower surface of the metal substrate, and a protection film attached to the upper surface of the metal substrate, which protection film has previously been provided with a cut in a prescribed shape.
Claims8
A closing plate for a battery comprising a metal substrate, metal foil which is laminated to the lower surface of the metal substrate, and a protection film attached to the upper surface of the metal substrate, wherein said protection film is provided with a cut in a tongue-like form.
A closing plate for a battery comprising a metal substrate, a metal foil laminated to the lower surface of the metal substrate, thermosetting adhesive attached to the upper surface of the metal substrate, and a protection film attached to the upper surface of the thermosetting adhesive, wherein the protection film has a cut in tongue like form.
Dependencies are inferred from the claim text.