Non-aqueous electrolyte for a lithium ion battery and lithium ion battery
US-2022109191-A1 · Apr 7, 2022 · US
Non-aqueous electrolyte solution additive, non-aqueous electrolyte solution including the same, and lithium secondary battery
US12573661B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12573661-B2 |
| Application number | US-202118021618-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 15, 2021 |
| Priority date | Sep 28, 2020 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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- Title
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Abstract
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The present invention relates to a non-aqueous electrolyte solution additive capable of improving lifespan characteristics of a lithium secondary battery by forming a solid-electrolyte interphase that is stable even at a high temperature and has low resistance when applied to a non-aqueous electrolyte solution, and relates to a non-aqueous electrolyte solution additive including a sultone-based compound represented by Formula I, a non-aqueous electrolyte solution including the same, and a lithium secondary battery.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A non-aqueous electrolyte solution additive, comprising: a sultone-based compound represented by Formula 1: wherein in Formula 1, X is O or S, Y is O, S, or NR, wherein R is hydrogen, a substituted or unsubstituted linear or branched C1-C10 alkyl group, a substituted or unsubstituted linear or branched C2-C10 alkenyl group, or a substituted or unsubstituted linear or branched C2-C10 alkynyl group, Z is a substituted or unsubstituted linear or branched C1-C10 alkylene group, a C═O group, an O═S═O group, a C═S group, or a S═O group, and R1 and R2 are each independently hydrogen, a substituted or unsubstituted linear or branched C1-C10 alkyl group, a substituted or unsubstituted linear or branched C 2 -C 10 alkenyl group, or a substituted or unsubstituted linear or branched C 2 -C 10 alkynyl group. 2 . The non-aqueous electrolyte solution additive of claim 1 , wherein R is hydrogen, a substituted or unsubstituted linear or branched C 1 -C 6 alkyl group, a substituted or unsubstituted linear or branched C 2 -C 6 alkenyl group, or a substituted or unsubstituted linear or branched C 2 -C 6 alkynyl group. 3 . The non-aqueous electrolyte solution additive of claim 1 , wherein R 1 and R 2 above are each independently hydrogen, a substituted or unsubstituted linear or branched C 1 -C 6 alkyl group, a substituted or unsubstituted linear or branched C 2 -C 6 alkenyl group, or a substituted or unsubstituted linear or branched C 2 -C 6 alkynyl group. 4 . The non-aqueous electrolyte solution additive of claim 1 , wherein the sultone-based compound represented by Formula 1 is at least one selected from compounds represented by Formulas 1-1 to 1-6: 5 . A non-aqueous electrolyte solution, comprising: an organic solvent; lithium salt; and the non-aqueous electrolyte solution additive of claim 1 . 6 . The non-aqueous electrolyte solution of claim 5 , wherein the additive is present in an amount of 0.01 parts by weight to 10 parts by weight with respect to 100 parts by weight of the non-aqueous electrolyte solution. 7 . The non-aqueous electrolyte solution of claim 5 , wherein the additive is present in an amount of 0.01 parts by weight to 5 parts by weight with respect to 100 parts by weight of the non-aqueous electrolyte solution. 8 . The non-aqueous electrolyte solution of claim 5 , wherein the lithium salt is present in a concentration of 0.5 M to 5 M. 9 . A lithium secondary battery, comprising: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and the non-aqueous electrolyte solution of claim 5 .
Assignees
Inventors
Classifications
Organic electrolyte · CPC title
- H01M10/052Primary
Li-accumulators · CPC title
characterised by the solvents · CPC title
Energy storage using batteries · CPC title
- H01M10/0567Primary
characterised by the additives · CPC title
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- What does patent US12573661B2 cover?
- The present invention relates to a non-aqueous electrolyte solution additive capable of improving lifespan characteristics of a lithium secondary battery by forming a solid-electrolyte interphase that is stable even at a high temperature and has low resistance when applied to a non-aqueous electrolyte solution, and relates to a non-aqueous electrolyte solution additive including a sultone-based…
- Who is the assignee on this patent?
- Lg Energy Solution Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/052. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2026 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).