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Electrolyte solution additive for secondary battery, and non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery which include the same
US12315882B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12315882-B2 |
| Application number | US-202117770348-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2021 |
| Priority date | May 27, 2020 |
| Publication date | May 27, 2025 |
| Grant date | May 27, 2025 |
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- Title
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Abstract
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An electrolyte solution additive for a secondary battery, a non-aqueous electrolyte solution, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte solution additive is represented by Formula 1: In Formula 1, R is an unsubstituted or substituted alkyl group having 1 to 5 carbon atoms.
First claim
Opening claim text (preview).
The invention claimed is: 1. A non-aqueous electrolyte solution for a lithium secondary battery, the non-aqueous electrolyte solution comprising: a lithium salt; an organic solvent; and a first additive comprising a compound represented by Formula 1: wherein R is an unsubstituted or substituted alkyl group having 1 to 5 carbon atoms. 2. The non-aqueous electrolyte solution for a secondary battery of claim 1 , wherein R is an alkyl group having 1 to 3 carbon atoms. 3. The non-aqueous electrolyte solution for a secondary battery of claim 1 , wherein R is an alkyl group having 1 or 2 carbon atoms. 4. The non-aqueous electrolyte solution for a secondary battery of claim 1 , wherein the compound represented by Formula 1 is a compound represented by Formula 1a: 5. The non-aqueous electrolyte solution for a lithium secondary battery of claim 1 , wherein the first additive is present in an amount of 0.05 wt % to 3 wt % based on a total weight of the non-aqueous electrolyte solution. 6. The non-aqueous electrolyte solution for a lithium secondary battery of claim 1 , wherein the first additive is present in an amount of 0.1 wt % to 3 wt % based on a total weight of the non-aqueous electrolyte solution. 7. The non-aqueous electrolyte solution for a lithium secondary battery of claim 1 , further comprising at least one second additive of a halogen-substituted or unsubstituted carbonate-based compound, a sultone-based compound, a sulfate-based compound, a phosphate-based or phosphite-based compound, a borate-based compound, a nitrile-based compound, a benzene-based compound, an amine-based compound, a silane-based compound, or a lithium salt-based compound. 8. A lithium secondary battery comprising: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; a separator disposed between the negative electrode and the positive electrode; and the non-aqueous electrolyte solution of claim 1 . 9. The lithium secondary battery of claim 8 , wherein the positive electrode active material includes lithium and at least one metal of nickel (Ni), cobalt (Co), manganese (Mn), iron (Fe), or aluminum (Al).
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Classifications
Energy storage using batteries · CPC title
Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence) · CPC title
Organic electrolyte · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Li-accumulators · CPC title
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- What does patent US12315882B2 cover?
- An electrolyte solution additive for a secondary battery, a non-aqueous electrolyte solution, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte solution additive is represented by Formula 1: In Formula 1, R is an unsubstituted or substituted alky…
- Who is the assignee on this patent?
- Lg Energy Solution 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 May 27 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).