Electrolyte and electrochemical device
US-2020243906-A1 · Jul 30, 2020 · US
Nonaqueous electrolyte, nonaqueous electrolyte energy storage device, and method for producing nonaqueous electrolyte energy storage device
US11710853B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11710853-B2 |
| Application number | US-202117410520-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 24, 2021 |
| Priority date | Nov 29, 2017 |
| Publication date | Jul 25, 2023 |
| Grant date | Jul 25, 2023 |
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- Title
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Abstract
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Provided are a nonaqueous electrolyte capable of providing a nonaqueous electrolyte energy storage device with reduced direct current resistance and an increased capacity retention ratio after charge-discharge cycles, a nonaqueous electrolyte energy storage device including such a nonaqueous electrolyte, and a method for producing such a nonaqueous electrolyte energy storage device. One mode of the present invention is a nonaqueous electrolyte for an energy storage device, containing an additive represented by the following Formula (1) or Formula (2). In Formula (1), R1 to R4 are each independently a hydrogen atom or a group represented by —NRa2, —ORa, —SRa, etc., with the proviso that at least one of R1 to R4 is a group represented by —ORa, —SRa, —COORa, —CORa, —SO2Ra, or —SO3Ra. In Formula (2), R5 to R7 are each independently a hydrogen atom or a group represented by —NRb2, —ORb, or —SRb, with the proviso that at least one of R5 to R7 is a group represented by —SRb.
First claim
Opening claim text (preview).
The invention claimed is: 1. A nonaqueous electrolyte for an energy storage device, comprising a nonaqueous solvent, an electrolyte salt and an additive represented by the following Formula (1), wherein the electrolyte salt includes a lithium salt: in Formula (1), R 1 to R 4 are each independently a hydrogen atom or a group represented by —NR a 2 , —OR a , —SR a , —COOR a , —COR a , —SO 2 R a , or —SO 3 R a , wherein R a s are each independently a hydrogen atom or a hydrocarbon group, with the proviso that R 1 is a group represented by —SR a , —COOR a , —COR a , —SO 2 R a , or —SO 3 R a . 2. The nonaqueous electrolyte according to claim 1 , wherein the R 2 to R 4 are each independently a hydrogen atom or a group represented by —OR a , —SR a , —COOR a , —COR a , —SO 2 R a , or —SO 3 R a . 3. A nonaqueous electrolyte energy storage device, comprising: a positive electrode; a negative electrode; and the nonaqueous electrolyte according to claim 1 . 4. A method for producing a nonaqueous electrolyte energy storage device comprising a positive electrode, a negative electrode and the nonaqueous electrolyte according to claim 1 , the method comprising: providing the nonaqueous electrolyte in a case of the nonaqueous electrolyte energy storage device. 5. The nonaqueous electrolyte energy storage device according to claim 3 , wherein the nonaqueous electrolyte energy storage device is a lithium ion secondary battery or a lithium ion capacitor. 6. The method according to claim 4 , wherein the nonaqueous electrolyte energy storage device is a lithium ion secondary battery or a lithium ion capacitor.
Assignees
Inventors
Classifications
- H01M10/0567Primary
characterised by the additives · CPC title
with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms · CPC title
One sulfur atom · CPC title
Two oxygen atoms · CPC title
as doubly bound oxygen atoms or as unsubstituted hydroxy radicals · CPC title
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- What does patent US11710853B2 cover?
- Provided are a nonaqueous electrolyte capable of providing a nonaqueous electrolyte energy storage device with reduced direct current resistance and an increased capacity retention ratio after charge-discharge cycles, a nonaqueous electrolyte energy storage device including such a nonaqueous electrolyte, and a method for producing such a nonaqueous electrolyte energy storage device. One mode of…
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0567. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 25 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).