Cathode hybrid electrolyte for solid secondary battery, cathode including the cathode hybrid electrolyte, method of preparing the cathode, and solid secondary battery including the cathode hybrid electrolyte
US-2021135290-A1 · May 6, 2021 · US
Aqueous polymer electrolyte for lithium rechargeable battery
US2022190385A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022190385-A1 |
| Application number | US-202117457971-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 7, 2021 |
| Priority date | Dec 11, 2020 |
| Publication date | Jun 16, 2022 |
| Grant date | — |
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- Title
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Abstract
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The present disclosure provides an aqueous polymer electrolyte comprising a polymer electrolyte of a polymer of a single lithium salt, or a polymer of a single lithium salt and short-chain dimethylsiloxane or single fluoro ether, and water. The present disclosure further provides a lithium rechargeable battery comprising such an aqueous polymer electrolyte.
First claim
Opening claim text (preview).
1 . An aqueous polymer electrolyte comprising a polymer electrolyte of a polymer of a single lithium salt, or a polymer of a single lithium salt and short-chain dimethylsiloxane or single fluoro ether, and water. 2 . The aqueous polymer electrolyte according to claim 1 , wherein the polymer electrolyte is a polymer of a single lithium salt and selected from poly lithium (p-vinylbenzenesulfonyl)(trifluoromethylsulfonyl)imide (poly LiSTFSI), poly lithium p-styrene sulfonyl N-[(trifluoromethyl)oxide[[(trifluoromethyl)sulfonyl group]amino]-4-sulfonyl group]-imide (poly LiSsTFSI), and poly lithium (2-methacrylate)propyl trifluoromethylsulfonyl (poly LiMTFSI), or a combination thereof, and the single lithium salt is selected from LiSTFSI, LiSsTFSI, and LiMTFSI, represented by the following formulae: 3 . The aqueous polymer electrolyte according to claim 1 , wherein the polymer electrolyte is a polymer obtained by polymerizing the single lithium salt and the short-chain dimethylsiloxane or the single fluoro ether, wherein the short-chain dimethylsiloxane or the single fluoro ether is contained in 20 mol % or less relative to the total amount of single substances, and the single lithium salt is selected from LiSTFSI, LiSsTFSI, and LiMTFSI, represented by the following formulae: and the short-chain dimethylsiloxane and the single fluoro ether are represented by the following formulae (A) and (B): wherein in Formula (A) and Formula (B), n is an integer of 1 to 10, preferably an integer of 1 to 5, and in Formula (B), RF is perfluoroalkyl represented by —(CF 2 )mCF 3 , and m=0, 1, 2, or 3. 4 . The aqueous polymer electrolyte according to claim 1 , wherein a content of the water is 5 to 30 mass %. 5 . The aqueous polymer electrolyte according to claim 1 , wherein the aqueous polymer electrolyte is formed into a film. 6 . The aqueous polymer electrolyte according to claim 5 , wherein the film has a thickness of 20 to 150 μm. 7 . A method for producing the aqueous polymer electrolyte, comprising dissolving the aqueous polymer according to claim 1 , in water and volatilizing water to a predetermined content. 8 . A lithium rechargeable battery comprising the aqueous polymer electrolyte according to claim 1 .
Assignees
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Classifications
Energy storage using batteries · CPC title
Aqueous electrolytes · CPC title
- H01M10/36Primary
Accumulators not provided for in groups H01M10/05-H01M10/34 · CPC title
Li-accumulators · CPC title
Organic polymers · CPC title
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Frequently asked questions
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- What does patent US2022190385A1 cover?
- The present disclosure provides an aqueous polymer electrolyte comprising a polymer electrolyte of a polymer of a single lithium salt, or a polymer of a single lithium salt and short-chain dimethylsiloxane or single fluoro ether, and water. The present disclosure further provides a lithium rechargeable battery comprising such an aqueous polymer electrolyte.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd, Univ Shanghai Jiaotong
- What technology area does this patent fall under?
- Primary CPC classification H01M10/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 16 2022 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).