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Active material for fluoride-ion secondary battery and fluoride-ion secondary battery using same
US2020381731A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020381731-A1 |
| Application number | US-202016984877-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 4, 2020 |
| Priority date | May 30, 2019 |
| Publication date | Dec 3, 2020 |
| Grant date | — |
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Abstract
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Provided is an active material for a fluoride-ion secondary battery, the active material containing a composite fluoride. The composite fluoride has a layered structure and is represented by a composition formula AmMnFx, where A is an alkali metal, M is a transition metal, 0<m≤2, 1≤n≤2, and 3≤x≤4. The alkali metal may be at least one kind selected from the group consisting of Na, K, Rb, and Cs. The transition metal may be a 3d transition metal.
First claim
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1 . An active material for a fluoride-ion secondary battery, the active material containing: a composite fluoride which has a layered structure and is represented by a composition formula A m M n F x , where A is an alkali metal; M is a transition metal; 0<m≤2; 1≤n≤2; and 3≤x≤4. 2 . The active material for the fluoride-ion secondary battery according to claim 1 , wherein the alkali metal is at least one kind selected from the group consisting of Na, K, Rb, and Cs. 3 . The active material for the fluoride-ion secondary battery according to claim 1 , wherein the transition metal is a 3d transition metal. 4 . The active material for the fluoride-ion secondary battery according to claim 3 , wherein the transition metal is at least one kind selected from the group consisting of Mn, Co, and Fe. 5 . A fluoride-ion secondary battery, comprising: a positive electrode including an active material; a negative electrode; and an electrolyte having fluoride-ion conductivity, wherein the active material is the active material for the fluoride-ion secondary battery according to claim 1 .
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Classifications
Solid electrolytes · CPC title
Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) · CPC title
Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy · CPC title
layered hydroxide-type, e.g. of the hydrotalcite-type · CPC title
Halides; Oxyhalides · CPC title
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- What does patent US2020381731A1 cover?
- Provided is an active material for a fluoride-ion secondary battery, the active material containing a composite fluoride. The composite fluoride has a layered structure and is represented by a composition formula AmMnFx, where A is an alkali metal, M is a transition metal, 0<m≤2, 1≤n≤2, and 3≤x≤4. The alkali metal may be at least one kind selected from the group consisting of Na, K, Rb, and Cs.…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/582. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 03 2020 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).