Nickel iron battery employing an untreated polyolefin separator with a surfactant in the electrolyte

US9559385B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9559385-B2
Application numberUS-201414174131-A
CountryUS
Kind codeB2
Filing dateFeb 6, 2014
Priority dateFeb 6, 2013
Publication dateJan 31, 2017
Grant dateJan 31, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is a nickel-iron battery. The battery comprises a positive nickel electrode, an iron negative electrode, an electrolyte comprising a surfactant, and a non-polar separator. In one embodiment, the non-polar separator is comprised of a polyolefin, and the surfactant comprises a zwitterionic surfactant.

First claim

Opening claim text (preview).

What is claimed is: 1. A nickel-iron battery comprising a nickel positive electrode, an iron negative electrode, an alkaline electrolyte comprising a surfactant, and a non-polar separator which has not been subjected to chemical grafting, with the surfactant comprising an alkylether hydroxypropyl sultaine. 2. The nickel-iron battery of claim 1 , wherein the separator is comprised of a polyolefin. 3. The nickel-iron battery of claim 2 , wherein the separator is comprised of polypropylene or polyethylene. 4. The nickel-iron battery of claim 1 , wherein the electrolyte comprises NaOH. 5. The nickel-iron battery of claim 1 , wherein the surfactant is a low-foaming electrolyte. 6. The nickel-iron battery of claim 1 , wherein the iron electrode comprises a single layer substrate coated with an iron active material. 7. The nickel-iron battery of claim 6 , wherein the coating on the substrate of the iron electrode further comprises a binder. 8. The nickel-iron battery of claim 6 , wherein the iron active material of the iron electrode comprises iron metal or an iron oxide.

Assignees

Inventors

Classifications

  • Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties · CPC title

  • Polyolefins · CPC title

  • H01M10/26Primary

    Selection of materials as electrolytes · CPC title

  • Cross-Sectional Technologies · mapped topic

  • Alkaline electrolytes · CPC title

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What does patent US9559385B2 cover?
Provided is a nickel-iron battery. The battery comprises a positive nickel electrode, an iron negative electrode, an electrolyte comprising a surfactant, and a non-polar separator. In one embodiment, the non-polar separator is comprised of a polyolefin, and the surfactant comprises a zwitterionic surfactant.
Who is the assignee on this patent?
Encell Technology Inc
What technology area does this patent fall under?
Primary CPC classification H01M10/26. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 31 2017 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).