All-solid-state battery system and method of manufacturing the same
US-2017077732-A1 · Mar 16, 2017 · US
Active material and battery
US11075372B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11075372-B2 |
| Application number | US-201916504210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2019 |
| Priority date | Jul 13, 2018 |
| Publication date | Jul 27, 2021 |
| Grant date | Jul 27, 2021 |
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Abstract
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A main object of the present disclosure is to provide a novel active material whose volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material having a composition represented by Na x M y Si 46 , wherein M is a metal element other than Na, x and y satisfy 0<x, 0≤y, y≤x and 0<x+y<8, and comprising a crystal phase of a Type I silicon clathrate.
First claim
Opening claim text (preview).
The invention claimed is: 1. An active material having a composition represented by Na x M y Si 46 , wherein M is a metal element other than Na, x and y satisfy 0<x,0≤y,y≤x and 0<x+y<8, and comprising a crystal phase of a Type I silicon clathrate. 2. The active material according to claim 1 , wherein the active material comprises the crystal phase of the Type I silicon clathrate as a main phase. 3. The active material according to claim 1 , wherein the crystal phase of the Type I silicon clathrate has a peak at a position of 2θ=30.33°±1.00°, 31.60°±1.00°, 32.82°±1.00°, 52.39°±1.00° and 55.49°±1.00° in X-ray diffraction measurement using a CuKα ray. 4. The active material according to claim 1 , wherein the active material does not comprise a Si crystal phase of a diamond-type, the Si crystal phase of the diamond-type has a peak at a position of 2θ=28.44°±1.00° in X-ray diffraction measurement using a CuKα ray, and when a diffraction intensity of the peak at 2θ=32.82°±1.00° is regarded as I A , and a diffraction intensity of the peak at 2θ=28.44°±1.00° is regarded as I B , I B /I A is more than 0, and 0.1 or less. 5. The active material according to claim 3 , wherein the active material comprises a Si crystal phase of a diamond-type, the Si crystal phase of the diamond-type has a peak at a position of 2θ=28.44°±1.00° in X-ray diffraction measurement using a CuKα ray, and when a diffraction intensity of the peak at 2θ=32.82°±1.00° is regarded as I A , and a diffraction intensity of the peak at 2θ=28.44°±1.00° is regarded as I B , I B /I A is more than 0, and 0.1 or less. 6. The active material according to claim 1 , wherein the x and the y satisfy 2.9≤x,2.9≤x+y≤7.1. 7. A battery comprising a cathode layer, an electrolyte layer, and an anode layer, in this order, and the anode layer includes the active material according to claim 1 . 8. The battery according to claim 7 , wherein the electrolyte layer includes an inorganic solid electrolyte. 9. The battery according to claim 7 , wherein the electrolyte layer includes a liquid electrolyte. 10. The battery according to claim 7 , wherein the battery is a lithium ion battery. 11. The battery according to claim 7 , wherein the battery is a sodium ion battery.
Assignees
Inventors
Classifications
Energy storage using batteries · CPC title
- H01M4/386Primary
Silicon or alloys based on silicon · CPC title
Batteries in motive systems, e.g. vehicle, ship, plane · CPC title
Binders · CPC title
Solid materials · CPC title
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- What does patent US11075372B2 cover?
- A main object of the present disclosure is to provide a novel active material whose volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material having a composition represented by Na x M y Si 46 , wherein M is a metal element other than Na, x and y satisfy 0<x, 0≤y, y≤x and 0<x+y<8, and comprising a crystal phase of a Type I sili…
- 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 Tue Jul 27 2021 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).