Electrode sheet and battery cell
US-2024039033-A1 · Feb 1, 2024 · US
Current collector and battery
US2026081180A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2026081180-A1 |
| Application number | US-202519315920-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 2, 2025 |
| Priority date | Sep 19, 2024 |
| Publication date | Mar 19, 2026 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
The current collector includes: a first layer that includes Al; a second layer that is disposed on the first layer and includes a metal element M, the metal element M having an oxidation-reduction potential based on Li of 2.3V or more and not being an amphoteric element; and a third layer that is disposed on the second layer and includes a resin.
First claim
Opening claim text (preview).
1 . A current collector, comprising: a first layer that includes Al; a second layer that is disposed on the first layer and includes a metal element M, the metal element M having an oxidation-reduction potential based on Li of 2.3V or more and not being an amphoteric element; and a third layer that is disposed on the second layer and includes a resin. 2 . The current collector according to claim 1 , wherein the metal element M includes at least one selected from the group consisting of Ni, Cr and Fe; 3 . The current collector according to claim 1 , which is used as a current collector of a solid-state battery. 4 . A battery, comprising a configuration in which a first current collector, a first electrode layer, an intermediate layer, a second electrode layer and a second current collector are disposed in this order, the first current collector comprising; a first layer that includes Al; a second layer that is disposed on the first layer and includes a metal element M, the metal element M having an oxidation-reduction potential based on Li of 2.3V or more and not being an amphoteric element; and a third layer that is disposed on the second layer and includes a resin, the third layer being in contact with the first electrode layer. 5 . The battery according to claim 4 , wherein the metal element M includes at least one selected from the group consisting of Ni, Cr and Fe. 6 . The battery according to claim 4 , wherein the intermediate layer includes a solid electrolyte. 7 . The battery according to claim 4 , wherein the first electrode layer includes an electrode active material, the electrode active material including at least one selected from the group consisting of Si and C.
Assignees
Inventors
Classifications
Energy storage using batteries · CPC title
Bipolar electrodes · CPC title
Li-accumulators · CPC title
- H01M4/667Primary
in the form of layers, e.g. coatings · CPC title
Alloys (collectors of lead alloys H01M4/685) · CPC title
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Frequently asked questions
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- What does patent US2026081180A1 cover?
- The current collector includes: a first layer that includes Al; a second layer that is disposed on the first layer and includes a metal element M, the metal element M having an oxidation-reduction potential based on Li of 2.3V or more and not being an amphoteric element; and a third layer that is disposed on the second layer and includes a resin.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/667. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 19 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).