Patent ID: 8343653
Filing Date: 2013-01-01
Classification: H01M,Y02E

Abstract:
1. A secondary battery comprising: an electrode assembly having a first and second electrode; a sealable case that receives the electrode assembly, wherein the case is sealed and wherein the first and second electrodes extend outward from the sealed case and wherein a portion of the first and second electrodes that extend out of the sealed case are insulated; a top case having a first surface and sidewalls that define a plurality of first ribs that extends outward from the first surface wherein the top case is positioned over the sealable case adjacent where the first and second electrodes extend outward of the sealable case wherein the top case defines openings within the sidewalls that are positioned so that when the top case is positioned on the sealable case the openings are positioned proximate the insulated portions of the first and second electrodes so that the top case is spaced from the insulated portions of the first and second electrodes when the top case is mounted on the sealable case and wherein at least one second rib is positioned within the openings so as to extend outward from the first surface of the top case and to define a gap between the at least one second rib and the sidewall of the sealable case and wherein the at least one second rib extends outward from the first surface of the top case a distance less than the distance of one of the plurality so as to have a smaller length than the one of plurality of first ribs.