Additive for non-aqueous electrolyte solution, electrolyte solution for non-aqueous electrolyte solution battery, and non-aqueous electrolyte solution battery
US-2020313236-A1 · Oct 1, 2020 · US
Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same
US12519136B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12519136-B2 |
| Application number | US-202117995476-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 2, 2021 |
| Priority date | Apr 14, 2020 |
| Publication date | Jan 6, 2026 |
| Grant date | Jan 6, 2026 |
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Abstract
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The present invention relates to: an electrolyte for a rechargeable lithium battery, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive for a rechargeable lithium battery, the electrolyte additive including a compound represented by Chemical Formula 1; and a rechargeable lithium battery comprising the electrolyte for a rechargeable lithium battery. Chemical Formula 1 is as defined in the specification.
First claim
Opening claim text (preview).
The invention claimed is: 1 . An electrolyte for a rechargeable lithium battery, comprising a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, L 1 is a single bond, a substituted or unsubstituted C1 to C5 alkylene group, a substituted or unsubstituted C1 to C5 cycloalkylene group, or a substituted or unsubstituted C6 to C15 arylene group, Z is an isocyanate group (—NCO), an isothiocyanate group (—NCS), a cyanate group (—OCN), a thiocyanate group (—SCN), or an isocyano group (—NC), and R 1 and R 2 are the same or different and are each independently hydrogen, a substituted or unsubstituted C 1 to C10 alkyl group, a substituted or unsubstituted C 1 to C10 alkenyl group, a substituted or unsubstituted C 1 to C10 alkynyl group, a substituted or unsubstituted C 3 to C20 cycloalkyl group, or a halide group. 2 . The electrolyte for a rechargeable lithium battery of claim 1 , wherein L is a single bond, or a substituted or unsubstituted C 1 to C 3 alkylene group, Z is an isocyanate group (—NCO) or an isothiocyanate group (—NCS), and R 1 and R 2 are the same or different halide group. 3 . The electrolyte for a rechargeable lithium battery of claim 1 , wherein L is a single bond, Z is an isocyanate group (—NCO) or an isothiocyanate group (—NCS), and R 1 and R 2 are each independently —F. 4 . The electrolyte for a rechargeable lithium battery of claim 1 , wherein the additive includes a compound represented by Chemical Formula 2: 5 . The electrolyte for a rechargeable lithium battery of claim 1 , wherein the additive is included in an amount of 0.05 wt % to 5 wt % based on the total amount of the electrolyte. 6 . The electrolyte for a rechargeable lithium battery of claim 1 , wherein the additive is included in an amount of 0.1 wt % to 3 wt % based on the total amount of the electrolyte. 7 . A rechargeable lithium battery, comprising a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and the electrolyte for the rechargeable lithium battery of claim 1 . 8 . The rechargeable lithium battery of claim 7 , wherein the positive electrode active material includes a lithium nickel-based transition metal oxide selected from lithium nickel oxide, lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminum oxide, lithium nickel phosphate, or a combination thereof. 9 . The rechargeable lithium battery of claim 7 , wherein the negative electrode active material includes a Si-based negative electrode active material or a Sn-based negative electrode active material.
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Classifications
Positive electrodes · CPC title
Negative electrodes · 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
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title
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- What does patent US12519136B2 cover?
- The present invention relates to: an electrolyte for a rechargeable lithium battery, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive for a rechargeable lithium battery, the electrolyte additive including a compound represented by Chemical Formula 1; and a rechargeable lithium battery comprising the electrolyte for a rechargeable lithium batte…
- Who is the assignee on this patent?
- Samsung Sdi Co 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 Jan 06 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).