LDH separator and zinc secondary cell

US11145935B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11145935-B2
Application numberUS-202016903673-A
CountryUS
Kind codeB2
Filing dateJun 17, 2020
Priority dateDec 18, 2017
Publication dateOct 12, 2021
Grant dateOct 12, 2021

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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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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. The LDH separator has a mean porosity of 0.03% to less than 1.0%.

First claim

Opening claim text (preview).

What is claimed is: 1. A layered double hydroxide (LDH) separator comprising a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged, wherein the LDH separator has a mean porosity of 0.03% to less than 1.0%. 2. The LDH separator according to claim 1 , wherein the mean porosity is 0.05% to 0.9%. 3. The LDH separator according to claim 1 , wherein the LDH is incorporated over the entire thickness of the porous substrate. 4. The LDH separator according to claim 1 , having a helium permeability per unit area of 3.0 cm/atm·min or less. 5. The LDH separator according to claim 1 , having an ionic conductivity of 2.0 mS/cm or more. 6. The LDH separator according to claim 1 , wherein the polymeric material is selected from the group consisting of polystyrene, poly(ether sulfone), polypropylene, epoxy resin, poly(phenylene sulfide), fluorocarbon resin, cellulose, nylon, and polyethylene. 7. The LDH separator according to claim 1 , consisting of the porous substrate and the LDH. 8. A secondary zinc battery comprising the LDH separator according to claim 1 . 9. A solid-state alkaline fuel cell comprising the LDH separator according to claim 1 .

Assignees

Inventors

Classifications

  • Manufacturing processes of separators, membranes or diaphragms · CPC title

  • Means for holding the electrolyte (solid polymer electrolytes H01M8/1018) · CPC title

  • Energy storage using batteries · CPC title

  • H01M50/446Primary

    Composite material consisting of a mixture of organic and inorganic materials · CPC title

  • Fuel cells · CPC title

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Frequently asked questions

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What does patent US11145935B2 cover?
Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. The LDH separator has a mean porosity of 0.03% to less than 1.0%.
Who is the assignee on this patent?
Ngk Insulators Ltd
What technology area does this patent fall under?
Primary CPC classification H01M50/446. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Oct 12 2021 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).