Sealed battery and method of manufacturing the same
AssigneeSanyo Electric Co., Ltd.
InventorsYoshinori Kida, Toshikazu Yoshida, Ryuji Ohshita, Toshiyuki Nohma, Koji Nishio
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Abstract
The opening to be sealed in a battery is sealed with an electrical insulating sealant S by placing an electrical insulating sealing material C, including a first sealing material A that is soften by heat applied for sealing and a second sealing material B that is more difficult to soften by the heat applied for sealing than the first sealing material A, and by heating and successively cooling the electrical insulating sealing material C. Thus, a sealed battery with few defectives such as a sealing failure and a short-circuit can be manufactured in a high yield rate.
Claims14
A method of manufacturing a sealed battery comprising a step of forming an electrical insulating sealant S for sealing an opening by placing an electrical insulating sealing material C, including a first sealing material A that is molten by heat applied for sealing and a second sealing material B that is more difficult to soften by the heat applied for sealing than the first sealing material A, on the opening and by heating and successively cooling the electrical insulating sealing material C.
A sealed battery comprising an electrical insulating sealant S for sealing an opening, the electrical insulating sealant S including a first sealing material A that is molten by heat applied for sealing and a second sealing material B that is more difficult to soften by the heat applied for sealing than the first sealing material A.
Dependencies are inferred from the claim text.