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All-solid-state battery and method for manufacturing the same
US9843071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9843071-B2 |
| Application number | US-201214405231-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2012 |
| Priority date | Jul 11, 2012 |
| Publication date | Dec 12, 2017 |
| Grant date | Dec 12, 2017 |
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- Title
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Abstract
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An all-solid-state battery including a cathode layer, an anode layer, and an electrolyte layer arranged between the cathode layer and the anode layer, the electrolyte layer including a first solid electrolyte layer including a sulfide solid electrolyte, and a second solid electrolyte layer other than the first solid electrolyte layer, the electrolyte layer including the sulfide solid electrolyte. Also provided is a method for manufacturing an all-solid-state battery including the steps of (a) making a cathode layer, (b) making an anode layer, (c) making an electrolyte layer including a first solid electrolyte layer including a sulfide solid electrolyte and a second solid electrolyte including the sulfide solid electrolyte, and (d) layering the cathode layer, the electrolyte layer, and the anode layer, such that the electrolyte layer is arranged between the cathode layer and the anode layer.
First claim
Opening claim text (preview).
The invention claimed is: 1. An all-solid-state battery comprising: a cathode layer; an anode layer; and an electrolyte layer arranged between the cathode layer and the anode layer, the electrolyte layer comprising: a first solid electrolyte layer comprising a sulfide solid electrolyte; and a second solid electrolyte layer other than the first solid electrolyte layer, the second solid electrolyte layer comprising the sulfide solid electrolyte, wherein the first solid electrolyte layer is in direct contact with the anode layer and the second solid electrolyte layer, and the second solid electrolyte layer is in direct contact with the first solid electrolyte layer and the cathode layer. 2. The all-solid-state battery according to claim 1 , wherein the sulfide solid electrolyte is a powder. 3. The all-solid-state battery according to claim 2 , wherein the first solid electrolyte layer and/or the second solid electrolyte layer comprise a binder. 4. The all-solid-state battery according to claim 2 , wherein X/Y≦ 0.5 wherein X is the average particle diameter D 50 of the sulfide solid electrolyte, and Y is the thickness of the electrolyte layer. 5. A method for manufacturing an all-solid-state battery, the method comprising the steps of: (a) making a cathode layer, (b) making an anode layer, (c) making an electrolyte layer comprising: a first solid electrolyte layer comprising a sulfide solid electrolyte; and a second solid electrolyte layer comprising the sulfide solid electrolyte; and (d) layering the cathode layer, the electrolyte layer, and the anode layer, such that (i) the electrolyte layer is arranged between the cathode layer and the anode layer, (ii) the first solid electrolyte layer is in direct contact with the anode layer and the second solid electrolyte layer, and (iii) the second solid electrolyte layer is in direct contact with the first solid electrolyte layer and the cathode layer. 6. The method for manufacturing an all-solid-state battery according to claim 5 , wherein the sulfide solid electrolyte is a powder. 7. The method for manufacturing an all-solid-state battery according to claim 6 , wherein a binder is used when making the first solid electrolyte layer and/or when making the second solid electrolyte layer. 8. The method for manufacturing an all-solid-state battery according to claim 6 , wherein the average particle diameter D 50 of the sulfide solid electrolyte and/or the thickness of the electrolyte layer are adjusted such that X/Y≦ 0.5 wherein X is the average particle diameter D 50 of the sulfide solid electrolyte, and Y is the thickness of the electrolyte layer after the step (d).
Assignees
Inventors
Classifications
including coating or impregnating · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
- H01M4/049Primary
Manufacturing of an active layer by chemical means · CPC title
- H01M10/0562Primary
Solid materials · CPC title
inorganic · CPC title
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- What does patent US9843071B2 cover?
- An all-solid-state battery including a cathode layer, an anode layer, and an electrolyte layer arranged between the cathode layer and the anode layer, the electrolyte layer including a first solid electrolyte layer including a sulfide solid electrolyte, and a second solid electrolyte layer other than the first solid electrolyte layer, the electrolyte layer including the sulfide solid electrolyt…
- Who is the assignee on this patent?
- Kato Kazuhito, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/049. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 12 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).