Electrolyte for rechargeable lithium battery and rechargeable lithium battery
US-2020006810-A1 · Jan 2, 2020 · US
Additive, electrolyte for lithium secondary battery comprising same, and lithium secondary battery
US12548796B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12548796-B2 |
| Application number | US-202117905927-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 20, 2021 |
| Priority date | Mar 10, 2020 |
| Publication date | Feb 10, 2026 |
| Grant date | Feb 10, 2026 |
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- Title
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Abstract
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Provided are an additive represented by Chemical Formula 1, an electrolyte for a lithium secondary battery including same, and a lithium secondary battery. The details of Chemical Formula 1 are as described in the specification.
First claim
Opening claim text (preview).
The invention claimed is: 1 . An electrolyte for a lithium secondary battery comprising: a non-aqueous organic solvent, a lithium salt, and an additive represented by Chemical Formula 1: wherein, in Chemical Formula 1, R 1 and R 2 are each independently a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, a substituted or unsubstituted C3 to C10 cycloalkenyl group, a substituted or unsubstituted C2 to C10 alkynyl group, a substituted or unsubstituted C3 to C10 cycloalkynyl group, or a substituted or unsubstituted C6 to C20 aryl group, and L is a substituted or unsubstituted C1 to C10 alkylene group. 2 . The electrolyte for a lithium secondary battery of claim 1 , wherein Chemical Formula 1 is represented by Chemical Formula 1-1: wherein, in Chemical Formula 1-1, n is one of integers from 1 to 5, and the definitions of R 1 and R 2 are as claim 1 . 3 . The electrolyte for a lithium secondary battery of claim 1 , wherein R 1 and R 2 in Chemical Formula 1 are each independently a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C2 to C10 alkenyl group, or a substituted or unsubstituted C6 to C20 aryl group. 4 . The electrolyte for a lithium secondary battery of claim 1 , wherein R 1 and R 2 in Chemical Formula 1 are each independently a substituted or unsubstituted C1 to C10 alkyl group or a substituted or unsubstituted C2 to C10 alkenyl group. 5 . The electrolyte for a lithium secondary battery of claim 1 , wherein R 1 and R 2 in Chemical Formula 1 are each independently a substituted or unsubstituted C1 to C 5 alkyl group. 6 . The electrolyte for a lithium secondary battery of claim 1 , wherein R 1 and R 2 in Chemical Formula 1 are the same. 7 . The electrolyte for a lithium secondary battery of claim 1 , wherein the additive is included in an amount of 0.1 wt % to 10 wt % based on the total weight of the electrolyte for a lithium secondary battery. 8 . The electrolyte for a lithium secondary battery of claim 1 , wherein the additive is included in an amount of 0.1 wt % to 3.0 wt % based on the total weight of the electrolyte for a lithium secondary battery. 9 . A lithium secondary battery, comprising a positive electrode including a positive active material; a negative electrode including a negative active material; the electrolyte of claim 1 . 10 . The lithium secondary battery of claim 9 , wherein the positive active material is a composite oxide of a nickel-containing metal and lithium. 11 . The lithium secondary battery of claim 9 , wherein the positive active material is represented by Chemical Formula 4: [Chemical Formula 4] Li a M 1 1-y1-z1 M 2 y1 M 3 z1 O 2 wherein, in Chemical Formula 4, 0.9≤a≤1.8, 0≤y1≤1, 0≤z1≤1, 0≤y1+z1<1, M 1 , M 2 , and M 3 may each independently be selected from metals of Ni, Co, Mn, Al, Sr, Mg, or La, and a combination thereof.
Assignees
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Classifications
Organic electrolyte · CPC title
Positive electrodes · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
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- What does patent US12548796B2 cover?
- Provided are an additive represented by Chemical Formula 1, an electrolyte for a lithium secondary battery including same, and a lithium secondary battery. The details of Chemical Formula 1 are as described in the specification.
- Who is the assignee on this patent?
- Samsung Sdi Co 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 Feb 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).