Title:
APPARATUS FOR MANUFACTURING ELECTRODE FOR SECONDARY BATTERY, AND ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURED BY SAME
Document Type and Number:
WIPO Patent Application WO/2020/197266
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for manufacturing an electrode for a secondary battery, and an electrode for a secondary battery and a secondary battery manufactured by same. The apparatus for manufacturing an electrode for a secondary battery according the present invention is an electrode manufacturing apparatus for forming an electrode tab by notching, on an electrode sheet in which an electrode current collector is coated with the electrode active material, an uncoated portion of the electrode current collector, which is not coated with an electrode active material. The apparatus includes a notching roll for forming the electrode tab by notching the uncoated portion of the electrode sheet while rotating, wherein the notching roll includes: a notching cutter unit provided in a portion of the notching roll facing the uncoated portion of the electrode current collector so as to notch the electrode sheet; and a roll pad provided on a portion of the notching roll facing the electrode active material so as to come into contact with the electrode sheet when the notching roll rotates, the roll pad being configured to prevent slip of the electrode sheet.
Inventors:
HAN HYUN GYU (KR)
Application Number:
PCT/KR2020/004070
Publication Date:
October 01, 2020
Filing Date:
March 25, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/04; B26F1/12; B26F1/38; H01M50/533
Foreign References:
| JP3707341B2 | 2005-10-19 | |||
| KR200302488Y1 | 2003-01-30 | |||
| KR20180004588A | 2018-01-12 | |||
| US9579924B2 | 2017-02-28 | |||
| JP2011081964A | 2011-04-21 | |||
| JP2018073658A | 2018-05-10 | |||
| KR20140015647A | 2014-02-07 |
Other References:
See also references of EP 3933964A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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