Rayovac Corporation

Gerald F Sanden

John Edward Oltman

Janna L Rose

Patrick J Spellman

Zhihong Jin

Cecilia T Maske

An electrochemical cell having a cell can that includes an interior surface, a current collector, a solid cathode contained in the can and in conductive contact therewith, an organic or solid polymer electrolyte comprising lithium salt solutes and aprotic organic solvents has improved storage properties when a coating comprising carbon powder is diposed on the current collector surface and on the adjacent interior surface of the cell can. Further, the cell has advantageous enhanced discharge properties over an expanded temperature range when the cathode additionally comprises a fluoropolymer resin binder.

Extended temperature operating range electrochemical cells

A case for enclosing a metal anode, air cathode, and electrolyte of a metal/air electrochemical cell is prepared by securing a multi-functional metallic cover, which has means for providing ingress of oxygen to the air cathode, to a non-conductive container. The container is capable of expanding to accomodate the growth of anodic material during discharge, while the cover is capable of supporting the air cathode against distortion on discharge and serving as the positive terminal of the cell. Metal/air cells and batteries constructed with such a case are also described.

Growing community of inventors

Verona, WI, United States of America

Gerald F Sanden