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
US12074285B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12074285-B2 |
| Application number | US-202117457971-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 7, 2021 |
| Priority date | Dec 11, 2020 |
| Publication date | Aug 27, 2024 |
| Grant date | Aug 27, 2024 |
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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).
What is claimed is: 1. An aqueous polymer electrolyte, comprising: a polymer electrolyte; and water, wherein the polymer electrolyte is a polymer obtained by polymerizing a single lithium salt with a short-chain dimethylsiloxane or with 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, wherein the single lithium salt is selected from the group consisting of lithium (p-vinylbenzenesulfonyl)(trifluoromethylsulfonyl)imide (LiSTFSI), lithium p-styrene sulfonyl N-[(trifluoromethyl)oxide[[(trifluoromethyl)sulfonyl group]amino]-4-sulfonyl group]-imide (LiSsTFSI), and lithium sulfonyl(trifluoromethane sulfonyl)imide methacrylate (LiMTFSI), represented by the following formulae: and wherein the short-chain dimethylsiloxane and the single fluoro ether are respectively represented by the following formulae (A) and (B): wherein, in Formula (A) and Formula (B), n is an integer of 1 to 10, and in Formula (B), RF is perfluoroalkyl represented by —(CF 2 )mCF 3 , and m=0, 1, 2, or 3. 2. The aqueous polymer electrolyte according to claim 1 , wherein a content of the water is 5 to 30 mass %. 3. The aqueous polymer electrolyte according to claim 1 , wherein the aqueous polymer electrolyte is formed into a film. 4. The aqueous polymer electrolyte according to claim 3 , wherein the film has a thickness of 20 to 150 μm. 5. The aqueous polymer electrolyte according to claim 1 , wherein in Formula (A) and Formula (B), n is an integer of 1 to 5. 6. The aqueous polymer electrolyte according to claim 1 , wherein the short-chain dimethylsiloxane or the single fluoro ether is contained in 1-20 mol % relative to the total amount of single substances. 7. A lithium rechargeable battery comprising the aqueous polymer electrolyte according to claim 1 . 8. 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.
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Classifications
Li-accumulators · CPC title
Immobilising or gelification of electrolyte · CPC title
Organic polymers · CPC title
Methods for charging or discharging (circuits for charging H02J7/00) · CPC title
Energy storage using batteries · CPC title
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Frequently asked questions
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- What does patent US12074285B2 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 H01M10/0565. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 27 2024 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).