Anode for lithium metal battery, and electrochemical device comprising same
US-12176528-B2 · Dec 24, 2024 · US
Non-aqueous electrolyte secondary battery
US2021075060A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021075060-A1 |
| Application number | US-202016999355-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 21, 2020 |
| Priority date | Sep 10, 2019 |
| Publication date | Mar 11, 2021 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A non-aqueous electrolyte secondary battery disclosed herein includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided on the positive electrode current collector. The non-aqueous electrolyte contains lithium fluorosulfonate. The positive electrode active material layer contains a positive electrode active material. The positive electrode active material layer contains hydrated alumina at least in a surface layer portion.
First claim
Opening claim text (preview).
What is claimed is: 1 . A non-aqueous electrolyte secondary battery comprising: a positive electrode; a negative electrode; and a non-aqueous electrolyte, wherein: the positive electrode includes a positive electrode current collector and a positive electrode active material layer provided on the positive electrode current collector; the non-aqueous electrolyte contains lithium fluorosulfonate; and the positive electrode active material layer contains a positive electrode active material, and the positive electrode active material layer contains hydrated alumina at least in a surface layer portion of the positive electrode active material layer. 2 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein in a region of the positive electrode active material layer where the hydrated alumina is contained, a content of the hydrated alumina is 1% by mass or more and 30% by mass or less, with respect to the positive electrode active material contained in the region. 3 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein the non-aqueous electrolyte further contains lithium bis(oxalato)borate. 4 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein the non-aqueous electrolyte further contains lithium difluorophosphate. 5 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein the hydrated alumina is aluminum oxyhydroxide.
Assignees
Inventors
Classifications
Energy storage using batteries · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
Positive electrodes · CPC title
- H01M4/62Primary
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
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- What does patent US2021075060A1 cover?
- A non-aqueous electrolyte secondary battery disclosed herein includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided on the positive electrode current collector. The non-aqueous electrolyte contains lithium fluorosulfonate. The positive elect…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/62. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 11 2021 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).