Patents
US 10916777 B2: Electric copper foil, and current collector for lithium secondary battery and lithium secondary battery including the same
- Granted
- 2021-02-09
- Filed
- 2016-08-22 application 15242769
- Type
- Utility · 7 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electric copper foil is applied as a current collector for a lithium secondary battery, and in a peak curve with respect to a (111) plane appearing on an X-ray diffraction analysis graph (a graph in which an X-axis variable is a diffraction angle 2θ and a Y-axis variable is an intensity of a diffracted X-ray) in a state where the electric copper foil is not thermally treated, the electric copper foil has a full width at half maximum (FWHM) of 0.08 or above and 0.15 or below.
Source: PVGPATDIS, file of 2026-04-10 (ipg210209.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 |
|---|---|---|---|---|
| Eun-Seon JEONG | Gwangju, KR | 1 | PVGPATDIS, file of 2026-04-10 | |
| Sang Hyun Jun | Seoul, KR | 44 | PVGPATDIS, file of 2026-04-10 | |
| Hyun Woo Lee | Jeonju-si, KR | 515 | PVGPATDIS, file of 2026-04-10 | |
| Gom-Bai Chon | Jeonju-si, KR | 1 | PVGPATDIS, file of 2026-04-10 | |
| Dong Woo Kim | Jeonju-si, KR | 218 | 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 |
| 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 |
| 2016-08-22 | Assignment Assignment of assignor's interest | CHON, GOM-BAI signed 2016-08-08 JEONG, EUN-SEON signed 2016-08-08 JUN, SANG-HYUN signed 2016-08-08 KIM, DONG-WOO signed 2016-08-08 LEE, HYUN-WOO signed 2016-08-08 | LS MTRON LTD. ANYANG-SI, GYEONGGI-DO | 39770/346 | 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.