Positive electrode active material and preparation method thereof, secondary battery, battery module, battery pack and electrical device
US-2024387819-A1 · Nov 21, 2024 · US
Negative electrode layer and all-solid state battery
US2023253558A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023253558-A1 |
| Application number | US-202318163924-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 3, 2023 |
| Priority date | Feb 7, 2022 |
| Publication date | Aug 10, 2023 |
| Grant date | — |
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- Title
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Abstract
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There is provided a negative electrode layer that is used in an all-solid state battery, containing lithium titanate and a sulfide solid electrolyte, in which a moisture amount contained in the lithium titanate is 25 ppm or more and 547 ppm or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . A negative electrode layer that is used in an all-solid state battery, the negative electrode layer comprising: lithium titanate; and a sulfide solid electrolyte, wherein an amount of moisture contained in the lithium titanate is 25 ppm or more and 547 ppm or less. 2 . The negative electrode layer according to claim 1 , wherein the lithium titanate has a composition represented by Li 4 Ti 5 O 12 . 3 . The negative electrode layer according to claim 1 , wherein a specific surface area of the lithium titanate is 3.9 m 2 /g or more and 6.5 m 2 /g or less. 4 . The negative electrode layer according to claim 1 , wherein the sulfide solid electrolyte contains Li, P, and S. 5 . The negative electrode layer according to claim 1 , wherein a proportion of the lithium titanate to a total of the lithium titanate and the sulfide solid electrolyte is 40% by volume or more and 80% by volume or less. 6 . An all-solid state battery comprising: a positive electrode layer; the negative electrode layer according to claim 1 ; and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer.
Assignees
Inventors
Classifications
- H01M4/131Primary
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
Solid materials · CPC title
Li-accumulators · CPC title
Negative electrodes · CPC title
inorganic · CPC title
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Frequently asked questions
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- What does patent US2023253558A1 cover?
- There is provided a negative electrode layer that is used in an all-solid state battery, containing lithium titanate and a sulfide solid electrolyte, in which a moisture amount contained in the lithium titanate is 25 ppm or more and 547 ppm or less.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd, Panasonic Holdings Corp, Ube Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/131. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 10 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).