Nonaqueous electrolyte secondary battery
US-2019013543-A1 · Jan 10, 2019 · US
Non-aqueous electrolyte secondary battery
US11508958B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11508958-B2 |
| Application number | US-202017000651-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 24, 2020 |
| Priority date | Sep 10, 2019 |
| Publication date | Nov 22, 2022 |
| Grant date | Nov 22, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
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, an insulating layer, and a boundary layer which are provided on the positive electrode current collector. The boundary layer is positioned between the positive electrode active material layer and the insulating layer, and is in contact with the positive electrode active material layer and the insulating layer. The positive electrode active material layer contains a positive electrode active material. The insulating layer contains an inorganic filler. The boundary layer contains the positive electrode active material contained in the positive electrode active material layer and the inorganic filler contained in the insulating layer. The boundary layer contains hydrated alumina. The non-aqueous electrolyte contains lithium fluorosulfonate.
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, an insulating layer, and a boundary layer which are provided on the positive electrode current collector; the boundary layer is positioned between the positive electrode active material layer and the insulating layer, and is in contact with the positive electrode active material layer and the insulating layer; the positive electrode active material layer contains a positive electrode active material; the insulating layer contains an inorganic filler; the boundary layer contains the positive electrode active material contained in the positive electrode active material layer and the inorganic filler contained in the insulating layer; the boundary layer contains hydrated alumina; and the non-aqueous electrolyte contains lithium fluorosulfonate. 2. The non-aqueous electrolyte secondary battery according to claim 1 , wherein the hydrated alumina has an average particle diameter of 0.5 μm or greater and 3 μm or smaller. 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
- H01M4/13Primary
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
Li-accumulators · CPC title
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- What does patent US11508958B2 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, an insulating layer, and a boundary layer which are provided on the positive electrode current collector. The boundary layer is posi…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/13. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 22 2022 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).