Method for producing active material, active material and battery
US-11088367-B2 · Aug 10, 2021 · US
Active material
US12261296B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12261296-B2 |
| Application number | US-202318400271-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2023 |
| Priority date | Jul 19, 2019 |
| Publication date | Mar 25, 2025 |
| Grant date | Mar 25, 2025 |
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- Title
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Abstract
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A main object of the present disclosure is to provide an active material wherein an expansion upon intercalation of a metal ion such as a Li ion is suppressed. The present disclosure achieves the object by providing an active material comprising a silicon clathrate type crystal phase, and the active material includes a Na element, a Si element and a M element that is a metal element with an ion radius larger than the Si element, and a proportion of the M element to a total of the Si element and the M element is 0.1 atm % or more and 5 atm % or less.
First claim
Opening claim text (preview).
What is claimed is: 1. An automobile comprising an all solid state battery, wherein the all solid state battery comprises an anode layer, a cathode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer, one of the anode layer and the cathode layer includes an active material comprising a silicon clathrate type crystal phase, the active material includes a Na element, a Si element and a Ge element, a proportion of the Ge element to a total of the Si element and the Ge element is 0.5 atm % or more and 1 atm % or less, an atomic part of the Na element to 136 atomic parts of the Si element is 2.0 parts or more and 5.4 parts or less, and such that the active material has a composition represented by Na w Ge z Si 136−z , where 2.0≤w≤5.4 and 0.68≤z≤1.36.
Assignees
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Classifications
Electric properties · CPC title
by unit-cell parameters, atom positions or structure diagrams · CPC title
by d-values or two theta-values, e.g. as X-ray diagram · CPC title
- C01B33/06Primary
Metal silicides (alloys C22) · CPC title
Batteries in motive systems, e.g. vehicle, ship, plane · CPC title
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Frequently asked questions
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- What does patent US12261296B2 cover?
- A main object of the present disclosure is to provide an active material wherein an expansion upon intercalation of a metal ion such as a Li ion is suppressed. The present disclosure achieves the object by providing an active material comprising a silicon clathrate type crystal phase, and the active material includes a Na element, a Si element and a M element that is a metal element with an ion…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01B33/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 25 2025 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).