Electrode production apparatus and electrode production method
US-2022238855-A1 · Jul 28, 2022 · US
Electrode rolling apparatus including non-coating portion pressing unit and electrode rolling method using the same
US12567575B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12567575-B2 |
| Application number | US-202218035431-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 12, 2022 |
| Priority date | May 22, 2020 |
| Publication date | Mar 3, 2026 |
| Grant date | Mar 3, 2026 |
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- Title
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Abstract
Official abstract text for this publication.
The present disclosure relates to an electrode rolling apparatus including a non-coating portion pressing unit that rolls a non-coating portion of an electrode substrate and an electrode rolling method using the same, and can prevent a swell from occurring in the non-coating portion region during the process of rolling the electrode substrate and increase the efficiency of the manufacturing process.
First claim
Opening claim text (preview).
The invention claimed is: 1 . An electrode rolling apparatus that rolls an electrode substrate comprising a current collector layer and an electrode mixture layer formed on one surface or both surfaces of the current collector layer, wherein the electrode rolling apparatus comprises a first non-coating portion roller and a second non-coating portion roller that press a non-coating portion region of the electrode substrate to form a pattern; an electrode roller that rolls the electrode substrate; and a non-coating portion induction heater that inductively heats a partial region of a coating portion and an entire region of the non-coating portion region with respect to a boundary line between the coating portion and the non-coating portion region of the electrode substrate, wherein the first and second non-coating portion rollers are arranged subsequent to the electrode roller along an advancing direction of the electrode substrate, wherein an HB hardness of a material of the first non-coating portion roller is different than an HB hardness of a material of the second non-coating portion roller. 2 . The electrode rolling apparatus according to claim 1 , wherein: at least one of the first and second non-coating portion rollers has a structure in which surface unevenness is formed. 3 . The electrode rolling apparatus according to claim 1 , wherein: the first non-coating portion roller has a structure in which surface unevenness is formed, and the second non-coating portion roller has a structure in which unevenness is not formed on the surface. 4 . The electrode rolling apparatus according to claim 3 , wherein: the first non-coating portion roller has higher hardness than the second non-coating portion roller. 5 . The electrode rolling apparatus according to claim 4 , wherein: the first non-coating portion roller is located at the upper part of the non-coating portion region, and the second non-coating portion roller is located at the lower part of the non-coating portion region. 6 . The electrode rolling apparatus according to claim 1 , wherein: an insulating coating layer is formed on a boundary line between a coating portion and the non-coating portion region of the electrode substrate, and the first and second non-coating portion rollers press the non-coating portion region and the insulating coating layer together. 7 . The electrode rolling apparatus according to claim 1 , wherein: the electrode roller includes a pair of rollers that press a region including a coating portion of the electrode substrate. 8 . The electrode rolling apparatus according to claim 1 , further comprising: a dryer that heats and dries the electrode substrate, wherein the dryer has a structure located downstream of the electrode roller or located on the same line so as the electrode roller.
Assignees
Inventors
Classifications
- B30B3/005Primary
Roll constructions · CPC title
involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis · CPC title
- H01M4/0435Primary
Rolling or calendering · CPC title
Energy storage using batteries · CPC title
Li-accumulators · CPC title
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Frequently asked questions
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- What does patent US12567575B2 cover?
- The present disclosure relates to an electrode rolling apparatus including a non-coating portion pressing unit that rolls a non-coating portion of an electrode substrate and an electrode rolling method using the same, and can prevent a swell from occurring in the non-coating portion region during the process of rolling the electrode substrate and increase the efficiency of the manufacturing pro…
- Who is the assignee on this patent?
- Lg Energy Solution Ltd
- What technology area does this patent fall under?
- Primary CPC classification B30B3/005. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 03 2026 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).