Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11127984 | Lithium secondary battery including cylindrical jelly roll | Jong Hoon Park, Han Gab Song, Pil-Kyu Park, Sung Min Park | 2021-09-21 |
| 11031646 | Cylindrical battery cell manufacturing device comprising secondary crimping mold | Tae-Hyun Kwon, Hae Jin Lim, Hyeon Soo Sim, Ha Young Heo, Hyoung Kwon Kim +1 more | 2021-06-08 |
| 10985430 | Welding method capable of improving welding reliability by precisely setting welding portions of the electrode taps | Yeo Min Yoon, Jae Woong Kim, Hyoung Kwon Kim, Ik Jong Lee | 2021-04-20 |