Patents
US 10403898 B2: Electrolytic copper foil having high tensile strength, electrode including the same, secondary battery including the same, and method of manufacturing the same
- Granted
- 2019-09-03
- Filed
- 2017-07-27 application 15661266
- Type
- Utility · 4 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A high strength electrolytic copper foil preventing generation of folds, wrinkles, pleats, and breaks during a roll-to-roll (RTR) process, a method of manufacturing the same, and an electrode and a secondary battery which allow high productivity to be secured by being manufactured with such an electrolytic copper foil. The electrolytic copper foil includes a copper film including 99 weight % or more of copper and a protective layer on the copper film, wherein the electrolytic copper foil has a tensile strength of 45 to 65 kgf/mm2.
Source: PVGPATDIS, file of 2026-04-10 (ipg190903.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| KCF TECHNOLOGIES, INC. 36 patents | US company or organization | Anyang-si, KR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Seung Min KIM | Anyang-si, KR | 39 | PVGPATDIS, file of 2026-04-10 | |
| Jeong-gil Lee | Anyang-si, KR | 14 | PVGPATDIS, file of 2026-04-10 | |
| Shan Jin | Anyang-si, KR | 22 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01M | Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy | H01M4/661 | PVGPATDIS, file of 2026-04-10 |
| C25D | Processes for the electrolytic or electrophoretic production of coatings; electroforming; apparatus therefor | C25D1/00 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E60/10 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-11-24 | Name change [revised] change of name and corporate address | KCF TECHNOLOGIES CO., LTD. signed 2020-04-24 | SK NEXILIS CO., LTD. JEONGEUP-SI, JEOLLABUK-DO | 55693/699 | PASDL, file of 2026-10-15 |
| 2018-07-23 | Assignment Assignment of assignor's interest | LS MTRON LTD. signed 2018-07-19 | KCF TECHNOLOGIES CO., LTD. ANYANG-SI, GYEONGGI-DO | 46424/303 | PASDL, file of 2026-10-15 |
| 2017-07-27 | Assignment Assignment of assignor's interest | JIN, SHAN HUA signed 2017-07-26 KIM, SEUNG MIN signed 2017-07-27 LEE, JEONG GIL signed 2017-07-27 | LS MTRON LTD. ANYANG-SI, GYEONGGI-DO | 43116/642 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.