Cathode mixture, all solid state battery, and method for producing cathode mixture
US-2019372104-A1 · Dec 5, 2019 · US
Cathode mixture, all solid state battery, and method for producing cathode mixture
US11329276B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11329276-B2 |
| Application number | US-201916687886-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 19, 2019 |
| Priority date | Nov 27, 2018 |
| Publication date | May 10, 2022 |
| Grant date | May 10, 2022 |
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- Title
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Abstract
Official abstract text for this publication.
A main object of the present disclosure is to provide a cathode mixture with good rate property. The present disclosure achieves the object by providing a cathode mixture comprising: a solid solution of a sulfur simple substance, P2S5 and Li3PO4, and a conductive auxiliary material, and a molar ratio of the Li3PO4 to the P2S5 is 0.05 or more and 0.67 or less.
First claim
Opening claim text (preview).
What is claimed is: 1. A cathode mixture comprising: a solid solution of a sulfur simple substance, P 2 S 5 and Li 3 PO 4 , and a conductive auxiliary material, and a molar ratio of the Li 3 PO 4 to the P 2 S 5 is 0.05 or more and 0.67 or less. 2. The cathode mixture according to claim 1 , comprising a carbon material as the conductive auxiliary material. 3. An all solid state battery comprising a cathode layer, a solid electrolyte layer, and an anode layer in this order, and the cathode layer includes a solid solution of a sulfur simple substance, P 2 S 5 and Li 3 PO 4 , and a conductive auxiliary material, and a molar ratio of the Li 3 PO 4 to the P 2 S 5 is 0.05 or more and 0.67 or less. 4. A method for producing a cathode mixture, the method comprising steps of: a preparing step of preparing a raw material mixture including a sulfur simple substance, P 2 S 5 , Li 3 PO 4 , and a conductive auxiliary material, and a mechanical milling step of conducting mechanical milling to the raw material mixture, and a molar ratio of the Li 3 PO 4 to the P 2 S 5 is 0.05 or more and 0.67 or less.
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Classifications
- H01M4/625Primary
Carbon or graphite · CPC title
Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title
- H01M4/362Primary
Composites · CPC title
Positive electrodes · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
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Frequently asked questions
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- What does patent US11329276B2 cover?
- A main object of the present disclosure is to provide a cathode mixture with good rate property. The present disclosure achieves the object by providing a cathode mixture comprising: a solid solution of a sulfur simple substance, P2S5 and Li3PO4, and a conductive auxiliary material, and a molar ratio of the Li3PO4 to the P2S5 is 0.05 or more and 0.67 or less.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/625. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 10 2022 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).