Electrolyte solution and method for producing sulfate salt
US-2017200974-A1 · Jul 13, 2017 · US
Electrolyte solution, electrochemical device, and lithium ion secondary battery and module
US12243981B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12243981-B2 |
| Application number | US-201816757535-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 13, 2018 |
| Priority date | Oct 25, 2017 |
| Publication date | Mar 4, 2025 |
| Grant date | Mar 4, 2025 |
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Abstract
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An electrolyte solution containing lithium ethyl sulfate and ethyl sulfate. The lithium ethyl sulfate is present in an amount of 0.1 to 2.0% by mass relative to the electrolyte solution. The lithium ethyl sulfate and the ethyl sulfate give a mass ratio of the lithium ethyl sulfate to the ethyl sulfate of 80 to 1500. Also disclosed is an electrochemical device and lithium ion secondary battery containing the electrolyte solution, a module including the electrochemical device and a method for producing lithium ethyl sulfate.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrolyte solution comprising lithium ethyl sulfate having a formula of CH 3 CH 2 —O—S(═O) 2 —OLi and ethyl sulfate having a formula of CH 3 CH 2 —O—S(═O) 2 —OH, the lithium ethyl sulfate being present in an amount of 0.1 to 2.0% by mass relative to the electrolyte solution, the lithium ethyl sulfate and the ethyl sulfate giving a mass ratio of the lithium ethyl sulfate to the ethyl sulfate of 80 to 1500. 2. The electrolyte solution according to claim 1 , further comprising ethanol in an amount of 1.0×10 −3 to 1000 ppm relative to the electrolyte solution. 3. The electrolyte solution according to claim 1 , further comprising at least one lithium salt selected from the group consisting of LiPF 6 , LiN(FSO 2 ) 2 , and LiBF 4 . 4. An electrochemical device comprising the electrolyte solution according to claim 1 . 5. A lithium ion secondary battery comprising the electrolyte solution according to claim 1 . 6. A module comprising the electrochemical device according to claim 4 . 7. A module comprising the lithium ion secondary battery according to claim 5 .
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Classifications
Organic electrolyte · CPC title
characterised by the solutes · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
characterised by additives · CPC title
characterised by the solute, e.g. salts, anions or cations therein · CPC title
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- What does patent US12243981B2 cover?
- An electrolyte solution containing lithium ethyl sulfate and ethyl sulfate. The lithium ethyl sulfate is present in an amount of 0.1 to 2.0% by mass relative to the electrolyte solution. The lithium ethyl sulfate and the ethyl sulfate give a mass ratio of the lithium ethyl sulfate to the ethyl sulfate of 80 to 1500. Also disclosed is an electrochemical device and lithium ion secondary battery c…
- Who is the assignee on this patent?
- Daikin Ind 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 Mar 04 2025 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).