Patent ID: 7820329
Filing Date: 2010-10-26
Classification: H01M,Y02E,Y02P

Abstract:
1. A wafer alkaline cell comprising a negative and a positive terminal, and a pair of opposing sides comprising at least the majority of the boundary surface of said cell, said opposing sides defining a short cell dimension therebetween, said short dimension being between about 0.5 and 6 mm, said cell comprising an anode assembly and a cathode assembly secured together forming a laminate structure, said anode assembly comprising an anode material and said cathode assembly comprising a cathode material therein, wherein said anode assembly comprises a housing for said anode, and said cathode assembly comprises a housing for said cathode, said anode and cathode assemblies being adhesively bonded together with a separator there-between to form a laminate structure, wherein said anode housing comprises an anode frame having a partially closed end and opposing open end and side walls therebetween defining the boundary of an anode cavity, said partially closed end having an inside surface facing the anode and opposing outside surface facing the external environment; said anode housing further comprising an anode current collector sheet bonded on one side by adhesive material to an inside surface of said partially closed end of said anode frame so that an unbonded side of said anode current collector sheet abuts and contacts anode material disposed in said anode cavity.