Patent ID: 6689514
Filing Date: 2004-02-10
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A high-temperature Niâ€”MH battery, comprising a cathode plate (1) made up of a cathode base plate and cathode substances adhering on the cathode base plate, an anode plate (3) made up of an anode base plate and anode substances adhering on the anode base plate, and a separator (2), characterized in that: the said cathode base plate is selected from the base plate of foamed nickel, fiber nickel, and porous steel strip; the said cathode substances consist of an active material of spherical nickel hydroxide, an electroconductive agent, an adhesive and an additive; in which, the said electroconductive agent is at least one selected from the group consisting of nickel powder, carbon powder, acetylene black, graphite powder, cadmium powder, zinc powder, Coâ€”Zn alloy powder, cobalt powder, CoO, Co2O3, CO(OH)2 and CO(OH)3; the said adhesive is at least one selected from the group consisting of PTFE, CMC,MC and PVA; the said additive is selected from the titanium additives which can restrain the electric potential descent in the oxygen-formation reaction at the Ni anode during charging at temperatures higher than 40Â° C.