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US 10,854,926 B2Granted
Nickel-iron battery with high cycle life
AssigneeEncell Technology, Inc.
InventorRandy Ogg
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Abstract
The present invention provides one with a Ni—Fe battery exhibiting enhanced power characteristics. The battery uses a particular electrolyte. The resulting characteristics of specific power and power density are much improved over conventional Ni—Fe batteries. The electrolyte comprises sodium hydroxide, with lithium hydroxide and sodium sulfide. The iron anode comprises an iron active material and a polyvinyl alcohol binder.
Claims12
A battery, comprising:
- a nickel cathode;
- an iron anode comprising an iron active material that comprises metal iron or an iron oxide material and a polyvinyl alcohol binder;
- and
- an electrolyte comprising sodium hydroxide, lithium hydroxide, and sodium sulfide, with the amount of sulfide in the electrolyte ranging from 0.23% to 0.75% based on the weight of the electrolyte;
- and
- with the battery exhibiting a cycle life of at least about 10,000 cycles.
3 more elements
Dependencies are inferred from the claim text.