All-solid secondary battery and method of manufacturing all-solid secondary battery
US-2021119203-A1 · Apr 22, 2021 · US
All solid state battery
US12424713B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12424713-B2 |
| Application number | US-202217725167-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2022 |
| Priority date | Apr 27, 2021 |
| Publication date | Sep 23, 2025 |
| Grant date | Sep 23, 2025 |
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- Title
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Abstract
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A main object of the present disclosure is to provide an all solid state battery in which occurrence of short circuit is inhibited. The present disclosure achieves the object by providing an all solid state battery comprising an anode including at least an anode current collector, a cathode, and a solid electrolyte layer arranged between the anode and the cathode; wherein a protective layer containing a Mg-containing particle that contains at least Mg, and also containing a polymer, is arranged between the anode current collector and the solid electrolyte layer.
First claim
Opening claim text (preview).
What is claimed is: 1. An all solid state battery comprising an anode including at least an anode current collector, a cathode, and a solid electrolyte layer arranged between the anode and the cathode; wherein: a single layer is arranged between the anode current collector and the solid electrolyte layer, wherein the single layer is a protective layer comprising: a Mg-containing particle that consists of Mg; and a polymer; and the all solid state battery does not contain a liquid electrolyte. 2. The all solid state battery according to claim 1 , wherein an average particle size D 50 of the Mg-containing particle is 800 nm or more and 10 μm or less. 3. The all solid state battery according to claim 1 , wherein a thickness of the protective layer is 5 μm or more and 100 μm or less. 4. The all solid state battery according to claim 1 , further comprising a restraining jig that applies restraining pressure along a thickness direction of the cathode, the solid electrolyte layer and the anode; wherein a restraining pressure to be applied by the restraining jig is 20 MPa or less.
Assignees
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Classifications
Lithium (H01M4/405 takes precedence) · CPC title
Negative electrodes · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
Safety devices for primary or secondary batteries · CPC title
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Frequently asked questions
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- What does patent US12424713B2 cover?
- A main object of the present disclosure is to provide an all solid state battery in which occurrence of short circuit is inhibited. The present disclosure achieves the object by providing an all solid state battery comprising an anode including at least an anode current collector, a cathode, and a solid electrolyte layer arranged between the anode and the cathode; wherein a protective layer con…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/052. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 23 2025 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).