Patent ID: 8940422
Filing Date: 2015-01-27
Classification: H01M,Y02E

Abstract:
1. A sealed battery comprising: a case body forming an interior space in which an electrolyte is arranged, the case body having a through-hole formed therein that communicates with the interior space, the case body forming a first terminal which is one of a negative terminal and a positive terminal of the sealed battery; a second terminal which is the other one of the negative terminal and the positive terminal of the sealed battery, the second terminal protruding from the case body and being in non-contact with the case body; and an exhaust mechanism configured to allow gas in the interior space to flow out through the through-hole, the exhaust mechanism including: wherein the elastic valve body includes a base portion formed in an approximately cylindrical shape and an abutment portion pressed against the seal surface by the cap body, the abutment portion contacting the seal surface at a position away from the inner edge of the seal surface.