US 12,345,767 B2
Apparatus and method for measuring capacity of battery cell
Young Min Kim, Daejeon (KR); and Cheol Taek Kim, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/790,604
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Jul. 7, 2021, PCT No. PCT/KR2021/008617
§ 371(c)(1), (2) Date Jul. 1, 2022,
PCT Pub. No. WO2022/019532, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 10-2020-0090055 (KR), filed on Jul. 21, 2020.
Prior Publication US 2023/0073815 A1, Mar. 9, 2023
Int. Cl. G01R 31/374 (2019.01); G01R 31/382 (2019.01); G01R 31/396 (2019.01); H01M 10/42 (2006.01); H02J 7/00 (2006.01); H10N 10/80 (2023.01)
CPC G01R 31/374 (2019.01) [G01R 31/382 (2019.01); G01R 31/396 (2019.01); H01M 10/4285 (2013.01); H02J 7/0048 (2020.01); H10N 10/80 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An apparatus for measuring a capacity of a battery cell, the apparatus comprising:
a jig configured to have the battery cell mounted thereon and press the battery cell from both surfaces;
a chamber configured to accommodate the jig and the battery cell;
a thermoelectric element for adjusting a temperature of the battery cell disposed on an external surface of the jig such that the thermoelectric element is configured to overlap the battery cell from a first end of the battery cell to a second end of the battery cell entirely and continuously;
a chiller configured to absorb heat discharged from the thermoelectric element, the chiller including:
a refrigerant supply source at an external side of the chamber; and
a cooling plate connected to the refrigerant supply source at an inside of the chamber, and contacting an external surface of the thermoelectric element; and
a charge/discharge unit configured to be connected to the battery cell via the first end or the second end.