Patent ID: 6428922
Filing Date: 2002-08-06
Classification: H01M,Y02E,Y10T

Abstract:
A battery comprising:a container having walls defining a volume and including a sealed active cell volume for housing active cell materials, the container including a can defining an electrochemical cell and having a closed bottom end and an open top end; electrochemically active materials contained in said sealed active cell volume of said container; a hydrogen removing agent disposed on said battery external from said sealed active cell volume of said container for removing hydrogen produced by said electrochemically active materials; an inner seal member disposed in said open top end of said can to seal said electrochemical materials in said can and define said sealed active cell volume, said inner seal member comprises a ventable annular seal that may vent hydrogen accumulated in said active cell volume of said container; and an outer cover assembled to said open top end of said can, said outer cover and inner seal member defining a container volume therebetween which is external to said sealed active cell volume, wherein said hydrogen removing agent is disposed in said container volume.