Anion conducting material and cell
US-10297861-B2 · May 21, 2019 · US
LDH separator and zinc secondary battery
US11158906B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11158906-B2 |
| Application number | US-202016903764-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 17, 2020 |
| Priority date | Dec 18, 2017 |
| Publication date | Oct 26, 2021 |
| Grant date | Oct 26, 2021 |
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- Title
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Abstract
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Provided is 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. A central region along the thickness of the LDH separator has a lower mean porosity than peripheral regions along the thickness of the LDH separator.
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 a central region along the thickness of the LDH separator has a lower mean porosity than peripheral regions along the thickness of the LDH separator. 2. The LDH separator according to claim 1 , wherein the peripheral regions have a mean porosity of 3% or more and the central region has a mean porosity of 2% or less. 3. The LDH separator according to claim 1 , wherein the peripheral regions have a mean porosity of 3 to 15% and the central region has a mean porosity of 1% or less. 4. The LDH separator according to claim 1 , wherein the LDH is incorporated over the entire thickness of the porous substrate. 5. The LDH separator according to claim 1 , having a helium permeability per unit area of 3.0 cm/atm·min or less. 6. The LDH separator according to claim 1 , having an ionic conductivity of 2.0 mS/cm or more. 7. 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. 8. The LDH separator according to claim 1 , consisting of the porous substrate and the LDH. 9. A secondary zinc battery comprising the LDH separator according to claim 1 . 10. 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
Ionic conductivity · CPC title
- H01M50/446Primary
Composite material consisting of a mixture of organic and inorganic materials · CPC title
of elements or alloys · CPC title
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Frequently asked questions
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- What does patent US11158906B2 cover?
- Provided is 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. A central region along the thickness of the LDH separator has a lower mean porosity than peripheral regions along the thickness of the LDH separator.
- 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 26 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).