Patent ID: 6337154
Filing Date: 2002-01-08
Classification: H01M,Y02E,Y02P

Abstract:
A battery box sealable against moisture and oxygen ingress and liquid electrolyte egress, said battery box comprising:a first end, a second end opposite said first end and side walls extending between said first and second ends to define a chamber for housing a plurality of lithium battery cells; said first end and said side walls being metallic and having a substantially moisture and oxygen gas impervious, joint therebetween; said second end being joinable to said side walls by a joining medium to form a substantially moisture and oxygen impervious joint therebetween; said second end having electrical connectors extending therethrough which permit substantially moisture and oxygen gas impervious connection to be made between current collectors of said lithium battery cells and an outside of said battery box; said second end further having a substantially moisture and oxygen impervious metallic inner foil layer laminated over a non-conductive, substantially rigid substrate, said inner foil layer covering substantially all of said substrate but having a plurality of discrete connector areas electrically isolated from the remainder of said inner foil layer by respective breaches in said inner foil layer; an insulating coating extending over said inner foil layer leaving an exposed edge of foil extending about said second end for securement to said side walls; said electrical connectors extending between said discrete connector areas and said outside of said battery box; a substantially oxygen and moisture impervious overlay covering each said breach and having an opening therethrough extending about and spaced apart from said electrical connectors.