Patents
US 10530007 B2: Electrolytic copper foil for lithium secondary battery and lithium secondary battery comprising the same
- Granted
- 2020-01-07
- Filed
- 2016-05-11 application 15315765
- Type
- Utility · 5 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electrolytic copper foil for a lithium secondary battery, which is applied as a negative electrode current collector of a lithium secondary battery, wherein when a correlation between a thermal treatment temperature of the electrolytic copper foil for a lithium secondary battery, which corresponds to a variable x, and an elongation increment ratio of the electrolytic copper foil for a lithium secondary battery, which corresponds to a variable y, is expressed as y=ax+b (100≤x≤200) on an x-y two-dimensional graph, the “a” value is in the range of 0.0009 to 0.0610.
Source: PVGPATDIS, file of 2026-04-10 (ipg200107.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 | Osan-si, KR | 39 | PVGPATDIS, file of 2026-04-10 | |
| Soo Kim | Jeongeup-si, KR | 9 | PVGPATDIS, file of 2026-04-10 | |
| Dae-Young Kim | Yongin-si, KR | 319 | PVGPATDIS, file of 2026-04-10 | |
| Jeong-gil Lee | Seoul, KR | 14 | 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 | H01M10/052 | 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 |
| 2016-12-02 | Assignment Assignment of assignor's interest | KIM, DAE-YOUNG signed 2016-10-11 KIM, SEUNG-MIN signed 2016-10-12 LEE, JEONG-GIL signed 2016-10-13 KIM, SOO-YEOL signed 2016-10-23 | LS MTRON LTD. ANYANG-SI, GYEONGGI-DO | 40493/88 | 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.