Chip form ultracapacitor
US-12165808-B2 · Dec 10, 2024 · US
Composition, separator for electrochemical device, electrochemical device and secondary battery
US2025079634A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025079634-A1 |
| Application number | US-202418950384-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 18, 2024 |
| Priority date | May 19, 2022 |
| Publication date | Mar 6, 2025 |
| Grant date | — |
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Abstract
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Provided is a composition for coating a separator for an electrochemical device, comprising a copolymer comprising a fluoromonomer unit and an amide bond-containing monomer unit.
First claim
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1 . A composition for coating a separator for an electrochemical device, comprising a copolymer comprising a fluoromonomer unit and an amide bond-containing monomer unit, wherein a content of the fluoromonomer unit in the copolymer is 75 to 7 mol % based on all monomer units, and a content of the amide bond-containing monomer unit in the copolymer is 25 to 93 mol % based on all monomer units. 2 . The composition according to claim 1 , wherein the fluoromonomer is at least one selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, and 2,3,3,3-tetrafluoropropene. 3 . The composition according to claim 1 , wherein the amide bond-containing monomer comprises a lactam ring. 4 . The composition according to claim 1 , wherein the amide bond-containing monomer is N-vinyl-2-pyrrolidone. 5 . The composition according to claim 1 , further comprising an inorganic filler. 6 . The composition according to claim 1 , further comprising an inorganic filler comprising at least one element selected from the group consisting of Mg, Al, Si, Ti, Zr, and Ba. 7 . The composition according to claim 1 , wherein the composition further comprises an inorganic filler, and a content proportion of the copolymer to the inorganic filler, (copolymer):(inorganic filler), in terms of mass ratio is 0.1:99.9 to 49.9:50.1. 8 . The composition according to claim 1 , further comprising a solvent. 9 . A separator for an electrochemical device, comprising a substrate and a coating layer formed from the composition according to claim 1 . 10 . The separator for an electrochemical device according to claim 9 , wherein the substrate is formed from an organic material. 11 . An electrochemical device comprising the separator for an electrochemical device according to claim 9 . 12 . A secondary battery comprising the separator for an electrochemical device according to claim 9 .
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
Composite material consisting of a mixture of organic and inorganic materials · CPC title
Organic material · CPC title
having a layered structure · CPC title
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Frequently asked questions
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- What does patent US2025079634A1 cover?
- Provided is a composition for coating a separator for an electrochemical device, comprising a copolymer comprising a fluoromonomer unit and an amide bond-containing monomer unit.
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01G11/52. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 06 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).