Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing compounds
US-9478793-B2 · Oct 25, 2016 · US
Battery comprising a coated iron anode
US9450233B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9450233-B2 |
| Application number | US-201414174049-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 6, 2014 |
| Priority date | Feb 6, 2013 |
| Publication date | Sep 20, 2016 |
| Grant date | Sep 20, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention provides one with a battery having an iron anode, e.g., a Ni—Fe battery, having improved performance characteristics. The battery uses a particular electrolyte and/or battery separator. The resulting characteristics of efficiency, charge retention and cycle life are much improved over such batteries in the prior art.
First claim
Opening claim text (preview).
What is claimed is: 1. A battery comprising a cathode, an iron anode comprised of a single layer of a conductive substrate coated on at least one side with a coating comprising an iron active material and a binder, an electrolyte comprised of sodium hydroxide, lithium hydroxide and sodium sulfide, and a polymeric battery separator. 2. The battery of claim 1 , wherein the cathode is a nickel or manganese cathode. 3. The battery of claim 1 , which is a sealed battery. 4. The battery of claim 1 , wherein the battery separator is made of a polyolefin. 5. The battery of claim 1 , wherein the substrate is coated on both sides. 6. The battery of claim 1 , comprising an iron anode and with the battery exhibiting a specific energy of at least about 105 watt hours/kg. 7. The battery of claim 1 , comprising an iron anode and with the battery exhibiting an energy density of at least about 183 watt hours/liter. 8. The battery of claim 1 , comprising an iron anode and with the battery exhibiting a specific power of at least about 2100 watts/kg. 9. The battery of claim 1 , comprising an iron anode and with the battery exhibiting a power density of at least about 3660 watts/liter. 10. The battery of claim 1 , comprising an iron anode and with the battery exhibiting a watt hour efficiency of at least about 95%. 11. The battery of claim 1 , comprising an iron anode and with the battery exhibiting a charge retention, measured as capacity at 28 days 20° C., of at least about 95%. 12. The battery of claim 1 , comprising an iron anode and with the battery exhibiting a cycle life of at least about 10,000 cycles. 13. The battery of claim 1 , wherein the concentration of sodium hydroxide in the electrolyte ranges from 5-7 N.
Assignees
Inventors
Classifications
Cross-Sectional Technologies · mapped topic
- H01M4/248Primary
Iron electrodes · CPC title
Nickel accumulators (H01M10/34 takes precedence) · CPC title
Selection of materials as electrolytes · CPC title
Energy storage using batteries · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9450233B2 cover?
- The present invention provides one with a battery having an iron anode, e.g., a Ni—Fe battery, having improved performance characteristics. The battery uses a particular electrolyte and/or battery separator. The resulting characteristics of efficiency, charge retention and cycle life are much improved over such batteries in the prior art.
- Who is the assignee on this patent?
- Encell Technology Inc
- What technology area does this patent fall under?
- Primary CPC classification H01M4/248. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).