Title:
BATTERY CELL FOR EVALUATING LITHIUM PRECIPITATION BEHAVIOR, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/206534
Kind Code:
A1
Abstract:
A method for manufacturing a battery cell for evaluating lithium precipitation behavior according to the present invention comprises: an electrode assembly manufacturing step (S10) for manufacturing an electrode assembly having an overhang region in which a positive electrode protrudes from a negative electrode; a battery cell manufacturing step (S20) for accommodating the electrode assembly in a first pouch, injecting an electrolyte, and then sealing to manufacture a battery cell; a secondary sealing step (S30) for accommodating the battery cell in a second pouch and secondarily sealing the battery cell; a second pouch removal step (S40) for forming the secondarily sealed battery cell and removing the second pouch; a gas pocket portion removal step (S50) for degassing and re-sealing the battery cell from which the second pouch has been removed, and removing a gas pocket portion of the first pouch; and a finishing step (S60) for accommodating and sealing the battery cell, from which the gas pocket portion has been removed, in a third pouch provided with a viewing window.
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Inventors:
LEE SUK WOO (KR)
LEE HAN YOUNG (KR)
YOON DONG SIK (KR)
LEE HAN YOUNG (KR)
YOON DONG SIK (KR)
Application Number:
PCT/KR2021/095025
Publication Date:
October 14, 2021
Filing Date:
January 20, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/42; H01M50/116; H01M50/124
Foreign References:
| US20180254440A1 | 2018-09-06 | |||
| KR20180067178A | 2018-06-20 | |||
| JP2012204334A | 2012-10-22 | |||
| KR20190004641A | 2019-01-14 | |||
| KR20060034819A | 2006-04-26 | |||
| KR20200043731A | 2020-04-28 |
Other References:
See also references of EP 4024559A4
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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