High power nickel-metal hydride batteries and high power electrodes for use therein
AssigneeOvonic Battery Company, Inc.
InventorsSrinivasan Venkatesan, Benjamin Reichman, Stanford R. Ovshinsky, Binay Prasad, Dennis A. Corrigan
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Abstract
Nickel-metal hydride batteries and electrodes are capable of increased power output and recharge rates. The electrodes and batteries produced therefrom exhibit increased internal conductance. The positive and negative electrodes may be formed by pressing powdered metal-hydride active materials into porous metal substrates. The porous metal substrates are formed from copper, copper-plated nickel, or a copper-nickel alloy, and may be additionally plated with a material which is electrically conductive and resistant to corrosion in the battery environment, such as nickel.
Claims16
In a nickel-metal hydride battery including at least one negative electrode having a porous metal substrate, the improvement comprising:
- said porous metal substrate comprising copper, copper-plated nickel, or a copper-nickel alloy, said copper, copper-plated nickel, or copper-nickel alloy being exposed to the electrolyte.
In a negative electrode for use in a nickel-metal hydride battery, said negative electrode including a porous metal substrate, the improvement comprising:
- said porous metal substrate comprising copper, copper-plated nickel, or a copper-nickel alloy, said copper, copper-plated nickel, or copper-nickel alloy being exposed to the electrolyte.
In a nickel-metal hydride battery including at least one negative electrode having a porous metal substrate, the improvement comprising:
- said porous metal substrate comprising substantially pure copper, said copper being exposed to the electrolyte.
In a negative electrode for use in a nickel-metal hydride battery, said negative electrode including a porous metal substrate, the improvement comprising:
- said porous metal substrate comprising substantially pure copper, said copper being exposed to the electrolyte.
Dependencies are inferred from the claim text.