Electrode, secondary battery, battery pack, vehicle and stationary power source
US-2020203722-A1 · Jun 25, 2020 · US
Rechargeable lithium battery
US2023268553A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023268553-A1 |
| Application number | US-202118004045-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 23, 2021 |
| Priority date | Dec 4, 2020 |
| Publication date | Aug 24, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention relates to a rechargeable lithium battery, the battery comprising: a positive electrode; a negative electrode; and an electrolyte comprising a smoothing additive having a reduction potential of at least −0.5 V, but less than 0.9 V.
First claim
Opening claim text (preview).
1 . A rechargeable lithium battery, comprising: a positive electrode; a negative electrode; and an electrolyte comprising a smoothing additive having a reduction potential of −0.5 V or more and less than 0.9 V. 2 . The rechargeable lithium battery of claim 1 , wherein the smoothing additive is butynediol, thiourea, or a combination thereof. 3 . The rechargeable lithium battery of claim 1 , wherein an amount of the smoothing additive is 5 wt % or less based on the total, 100 wt %, of the electrolyte. 4 . The rechargeable lithium battery of claim 1 , wherein an amount of the smoothing additive is 0.01 wt % to 5 wt % based on the total, 100 wt %, of the electrolyte. 5 . The rechargeable lithium battery of claim 1 , wherein the electrolyte further comprises a lithium salt and a non-aqueous organic solvent. 6 . The rechargeable lithium battery of claim 1 , wherein the negative electrode comprises a current collector. 7 . The rechargeable lithium battery of claim 1 , wherein the negative electrode comprises a coating layer including a current collector and a polymer positioned on the current collector. 8 . The rechargeable lithium battery of claim 7 , wherein the polymer is a polyvinylidene fluoride-based polymer. 9 . The rechargeable lithium battery of claim 7 , wherein the polymer is polyvinylidene fluoride, a copolymer of polyvinylidene fluoride and hexafluoropropylene (PVdF-HFP), or a combination thereof. 10 . The rechargeable lithium battery of claim 7 , wherein the coating layer further comprises LiF.
Assignees
Inventors
Classifications
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Negative electrodes · CPC title
Organic electrolyte · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
- H01M10/0567Primary
characterised by the additives · CPC title
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Frequently asked questions
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- What does patent US2023268553A1 cover?
- The present invention relates to a rechargeable lithium battery, the battery comprising: a positive electrode; a negative electrode; and an electrolyte comprising a smoothing additive having a reduction potential of at least −0.5 V, but less than 0.9 V.
- 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 Thu Aug 24 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).