All-solid-state battery
US-2019305368-A1 · Oct 3, 2019 · US
All-solid-state battery
US11984602B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11984602-B2 |
| Application number | US-202217673195-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 16, 2022 |
| Priority date | Mar 12, 2021 |
| Publication date | May 14, 2024 |
| Grant date | May 14, 2024 |
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- Title
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Abstract
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Provided is an all-solid-state battery capable of suppressing a rise in the resistance increase ratio thereof. The all-solid-state battery includes an anode active material layer containing an alloy-based active material, a first fibrous carbon, and a second fibrous carbon, wherein when a fiber diameter of the first fibrous carbon is defined as A, and a fiber diameter of the second fibrous carbon is defined as B, the ratio of A to B is 10 to 300, and when the proportion (wt %) of the first fibrous carbon to the alloy-based active material is defined as X, and the proportion (wt %) of the second fibrous carbon to the alloy-based active material is defined as Y, the proportion ({Y/(X+Y)}×100%) of the contained second fibrous carbon to a total of the first fibrous carbon and the second fibrous carbon is 0.5% to 10%.
First claim
Opening claim text (preview).
What is claimed is: 1. An all-solid-state battery comprising: an anode active material layer containing an alloy-based active material, a first fibrous carbon, and a second fibrous carbon, wherein when a fiber diameter of the first fibrous carbon is defined as A, wherein A is from 50 nm to 300 nm, and a fiber diameter of the second fibrous carbon is defined as B, wherein B is from 1 nm to 10 nm, a ratio of A to B is 10 to 300, and when the proportion (wt %) of the first fibrous carbon to the alloy-based active material is defined as X, and a proportion (wt %) of the second fibrous carbon to the alloy-based active material is defined as Y, a proportion ({Y/(X=Y)}×100%) of the contained second fibrous carbon to a total of the first fibrous carbon and the second fibrous carbon is 0.5% to 10%; and a cathode active material layer and a sulfide solid electrolyte. 2. The all-solid-state battery of claim 1 , wherein X is from 1 wt % to 20 wt %. 3. The all-solid state battery of claim 1 , wherein Y is from 0.05 wt % to 0.2 wt %.
Assignees
Inventors
Classifications
- H01M4/625Primary
Carbon or graphite · CPC title
of elements or alloys · CPC title
- H01M10/052Primary
Li-accumulators · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
Negative electrodes · CPC title
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- What does patent US11984602B2 cover?
- Provided is an all-solid-state battery capable of suppressing a rise in the resistance increase ratio thereof. The all-solid-state battery includes an anode active material layer containing an alloy-based active material, a first fibrous carbon, and a second fibrous carbon, wherein when a fiber diameter of the first fibrous carbon is defined as A, and a fiber diameter of the second fibrous carb…
- 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 14 2024 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).