Metal Hydride Battery Electrodes

摘要

Rechargeable metal hydride alkaline cells are provided improved cycle life, lower internal resistance and enhanced utilization of energy by employing a positive electrode prepared by a method comprising applying a paste comprising an active positive electrode composition to a conductive substrate and exposing the pasted electrode to elevated temperature for a desired time period. The electrode composition comprises a particulate positive electrode active material, a polymeric binder and optionally one or more additives. The electrode active material is for instance nickel hydroxide or modified nickel hydroxide. In the case of a nickel foam substrate, the electrode composition may contain no binder.

主权项

1. A method for preparing a positive electrode for a metal hydride cell, the method comprising
applying a paste comprising an active positive electrode composition to a conductive substrate to obtain a pasted electrode and exposing the pasted electrode to an elevated temperature of from about 130° C. to about 210° C., where the electrode composition comprises a particulate positive electrode active material, a polymeric binder and optionally one or more additives.