Separator structure body for use in zinc secondary battery
US-10290847-B2 · May 14, 2019 · US
LDH separator and secondary zinc battery
US11545719B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11545719-B2 |
| Application number | US-201916420842-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 23, 2019 |
| Priority date | Dec 18, 2017 |
| Publication date | Jan 3, 2023 |
| Grant date | Jan 3, 2023 |
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- Title
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Abstract
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Provided is a layered double hydroxide (LDH) separator capable of more effectively restraining short circuiting caused by zinc dendrites. The LDH separator includes a porous substrate made of a polymer material and LDH plugging pores in the porous substrate, and has a linear transmittance of 1% or more at a wavelength of 1000 nm.
First claim
Opening claim text (preview).
What is claimed is: 1. A layered double hydroxide (LDH) separator comprising a porous substrate made of a polymer material and LDH plugging pores of the porous substrate, said separator having a linear transmittance of 5% or more at a wavelength of 1000 nm, wherein the porous substrate is filled with the LDH over the full thickness of the porous substrate, the thickness being taken along a cross section of the porous substrate. 2. The LDH separator according to claim 1 , having a linear transmittance of 10% or more at a wavelength of 1000 nm. 3. The LDH separator according to claim 1 , having a helium permeability per unit area of 3.0 cm/atm·min or less. 4. The LDH separator according to claim 1 , having an ionic conductivity of 0.1 mS/cm or more. 5. The LDH separator according to claim 1 , wherein the polymer material is selected from the group consisting of polystyrene, poly(ether sulfone), polypropylene, epoxy resin, poly(phenylene sulfide), fluorocarbon resin, cellulose, nylon, and polyethylene. 6. The LDH separator according to claim 1 , consisting of the porous substrate and the LDH. 7. A secondary zinc battery comprising the LDH separator according to claim 1 .
Assignees
Inventors
Classifications
Separators, membranes or diaphragms characterised by the material · CPC title
Ionic conductivity · CPC title
Nickel accumulators (H01M10/34 takes precedence) · CPC title
Porosity · CPC title
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
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Frequently asked questions
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- What does patent US11545719B2 cover?
- Provided is a layered double hydroxide (LDH) separator capable of more effectively restraining short circuiting caused by zinc dendrites. The LDH separator includes a porous substrate made of a polymer material and LDH plugging pores in the porous substrate, and has a linear transmittance of 1% or more at a wavelength of 1000 nm.
- 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 Jan 03 2023 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).