All-solid-state battery manufacturing apparatus and all-solid-state battery manufacturing method
US-2022013805-A1 · Jan 13, 2022 · US
Current collector patterning for enhanced adhesion
US12451494B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12451494-B2 |
| Application number | US-202217872188-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 25, 2022 |
| Priority date | Jul 25, 2022 |
| Publication date | Oct 21, 2025 |
| Grant date | Oct 21, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A method of making a battery current collector foil includes heat treating a foil sheet and mechanically roughening the heat treated foil sheet to create a surface roughness of between 2-4 μm. The heat treating and mechanical roughening of the foil sheet provides improved coating adhesion. One of an anode and cathode coating is then applied to the roughened, heat treated, foil sheet.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of making a battery current collector foil sheet, comprising: heat treating and mechanically roughening a foil sheet by at least one heated roller to create a nominal surface roughness of between 2-4 μm, increasing oxidation of the foil sheet by flowing air through perforations in the heated roller onto the foil sheet; and applying one of an anode and cathode coating to the roughened, heat treated, foil sheet, wherein the applying one of an anode and cathode coating includes lithium metal dipping. 2. The method of making a battery current collector foil sheet according to claim 1 , wherein the heat treating is performed at a temperature of between 300-400° C. 3. The method of making a battery current collector foil sheet according to claim 1 , wherein the applying one of an anode and cathode coating further includes a slurry coating.
Assignees
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Classifications
Metal or alloys, e.g. alloy coatings (H01M4/669 take precedence) · CPC title
by coating on electrode collectors · CPC title
Rolling or calendering · CPC title
Energy storage using batteries · CPC title
of electrodes based on metals, Si or alloys · CPC title
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Frequently asked questions
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- What does patent US12451494B2 cover?
- A method of making a battery current collector foil includes heat treating a foil sheet and mechanically roughening the heat treated foil sheet to create a surface roughness of between 2-4 μm. The heat treating and mechanical roughening of the foil sheet provides improved coating adhesion. One of an anode and cathode coating is then applied to the roughened, heat treated, foil sheet.
- Who is the assignee on this patent?
- Gm Global Tech Operations Llc
- What technology area does this patent fall under?
- Primary CPC classification H01M4/82. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 21 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).