Polyimide-based binder for power storage device, electrode mixture paste, negative electrode active material layer, negative electrode sheet for power storage device, and power storage device
US-12176543-B2 · Dec 24, 2024 · US
Electrode active material, electrode mixture, and battery
US2025112231A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025112231-A1 |
| Application number | US-202418754431-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 26, 2024 |
| Priority date | Sep 28, 2023 |
| Publication date | Apr 3, 2025 |
| Grant date | — |
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- Title
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Abstract
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In the present disclosure, the problem is solved by providing an electrode active material of which volume change due to charging and discharging is small. The electrode active material has a silicon-clathrate-II-type crystal phase. In the electrode active material, a five-membered ring size in the crystal phase is 3.752 Å or more and 3.780 Å or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . An electrode active material having a silicon-clathrate-II-type crystal phase, wherein a five-membered ring size in the crystal phase is 3.752 Å or more and 3.780 Å or less. 2 . The electrode active material according to claim 1 , wherein the electrode active material has a gap on an inside of a primary particle. 3 . An electrode mixture containing: an electrode active material according to claim 1 ; and at least one of a conductive material or a binder. 4 . A battery, comprising: a positive-electrode layer; a negative-electrode layer; and an electrolyte layer disposed between the positive-electrode layer and the negative-electrode layer, wherein the positive-electrode layer or the negative-electrode layer contains the electrode mixture according to claim 3 . 5 . The battery according to claim 4 , wherein the electrolyte layer contains a solid electrolyte.
Assignees
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Classifications
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Negative electrodes · CPC title
- H01M4/386Primary
Silicon or alloys based on silicon · CPC title
inorganic · CPC title
Positive electrodes · CPC title
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Frequently asked questions
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- What does patent US2025112231A1 cover?
- In the present disclosure, the problem is solved by providing an electrode active material of which volume change due to charging and discharging is small. The electrode active material has a silicon-clathrate-II-type crystal phase. In the electrode active material, a five-membered ring size in the crystal phase is 3.752 Å or more and 3.780 Å or less.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/386. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Apr 03 2025 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).