Patents
US 10218004 B2: Electrolytic copper foil for lithium secondary battery and lithium secondary battery comprising the same
- Granted
- 2019-02-26
- Filed
- 2016-04-08 application 15306216
- Type
- Utility · 5 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electrolytic copper foil for a lithium secondary battery has yield strength of 30 kgf/mm2 to 60 kgf/mm2, a surface area ratio of 1 to 3, and a weight deviation of 3% or below.
Source: PVGPATDIS, file of 2026-04-10 (ipg190226.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 |
|---|---|---|---|---|
| Dae-Young Kim | Yongin-si, KR | 319 | PVGPATDIS, file of 2026-04-10 | |
| Seung Min KIM | Osan-si, KR | 39 | 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 | C25D1/04 | 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 |
| 2016-10-24 | Assignment Assignment of assignor's interest | KIM, DAE-YOUNG signed 2016-10-11 KIM, SEUNG-MIN signed 2016-10-12 | LS MTRON LTD. ANYANG-SI, GYEONGGI-DO | 40101/683 | 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.