Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 1, 2008
Patent Application Number
10667770
Date Filed
September 22, 2003
Patent Primary Examiner
Patent abstract
A sealed rechargeable battery includes: a metal case having an elliptical or rectangular cross section; a metal sealing plate for sealing an opening at one end of the case; and an electrode plate assembly being housed in the case with an electrolyte solution. In this configuration, a plurality of projecting ridges are formed in a continuous or discontinuous manner on both longer side faces of the case between a bottom face and the opening so as to enhance the cooling performance and to improve the strength of the side faces of the case.
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