Solid-state electrochemical cell
US-2024429457-A1 · Dec 26, 2024 · US
Method for producing secondary battery electrode
US2025385242A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025385242-A1 |
| Application number | US-202519215338-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 22, 2025 |
| Priority date | Jun 13, 2024 |
| Publication date | Dec 18, 2025 |
| Grant date | — |
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- Title
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Abstract
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A method for producing a secondary battery electrode includes: drying an electrode paste formed on a surface of a current collector; after drying the electrode paste, baking the electrode paste at a higher temperature than during the drying; and after baking the electrode paste, bending the current collector around a roller surface such that the surface of the current collector on which the electrode paste is formed is disposed at an outer side.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for producing a secondary battery electrode, the method comprising: drying an electrode paste formed on a surface of a current collector; after drying the electrode paste, baking the electrode paste at a higher temperature than during the drying; and after baking the electrode paste, bending the current collector around a roller surface such that the surface of the current collector on which the electrode paste is formed is disposed at an outer side. 2 . The method for producing a secondary battery electrode of claim 1 , wherein, when baking the electrode paste, a baking temperature and a baking time satisfy the following equations: Y≥− 8 X+ 1220 100 ≤X≤ 150 wherein, in the equations, X is the baking temperature in degrees Celsius and Y is the baking time in minutes. 3 . The method for producing a secondary battery electrode of claim 1 , wherein a roller having a roll diameter of 40 mm or greater is employed in the bending. 4 . The method for producing a secondary battery electrode of claim 1 , wherein a thickness of the electrode paste formed on the current collector is from 150 μm to 500 μm. 5 . The method for producing a secondary battery electrode of claim 1 , wherein, in the bending, cracks are imparted having a depth that is 10% or greater with respect to a thickness of the electrode paste formed on the current collector and that is a depth not reaching the current collector.
Assignees
Inventors
Classifications
Processes of manufacture · CPC title
Rolling or calendering · CPC title
by coating on electrode collectors · CPC title
- H01M4/0471Primary
involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis · CPC title
Energy storage using batteries · CPC title
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- What does patent US2025385242A1 cover?
- A method for producing a secondary battery electrode includes: drying an electrode paste formed on a surface of a current collector; after drying the electrode paste, baking the electrode paste at a higher temperature than during the drying; and after baking the electrode paste, bending the current collector around a roller surface such that the surface of the current collector on which the ele…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/0471. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 18 2025 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).