Method for producing active material, active material and battery
US-11088367-B2 · Aug 10, 2021 · US
Active material
US11901556B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11901556-B2 |
| Application number | US-202217960597-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 5, 2022 |
| Priority date | Jul 19, 2019 |
| Publication date | Feb 13, 2024 |
| Grant date | Feb 13, 2024 |
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- Title
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- Abstract
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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 all solid state battery comprising an anode layer, a cathode layer, and a solid electrolyte layer including a solid electrolyte and formed between the cathode layer and the anode layer, wherein 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, and 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, such that the active material has a composition represented by Na W Ge z Si 136-z , where 2.0≤w≤5.4 and 1<z≤1.36.
Assignees
Inventors
Classifications
- H01M4/58Primary
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates · CPC title
- C01B33/06Primary
Metal silicides (alloys C22) · CPC title
by d-values or two theta-values, e.g. as X-ray diagram · CPC title
by unit-cell parameters, atom positions or structure diagrams · CPC title
Electric properties · CPC title
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- What does patent US11901556B2 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 H01M4/58. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 13 2024 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).