US 12,191,456 B2
Battery cell leak inspection device and battery cell leak inspection method
Seungjae Lee, Yongin-si (KR); Sukkeun Kang, Yongin-si (KR); Kyeongseon Yoo, Yongin-si (KR); and Youngmin Kim, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Filed by Samsung SDI Co., Ltd., Yongin-si (KR)
Filed on Jan. 19, 2024, as Appl. No. 18/418,114.
Application 18/418,114 is a continuation of application No. 16/980,102, granted, now 11,916,199, previously published as PCT/KR2019/002388, filed on Feb. 27, 2019.
Claims priority of application No. 10-2018-0029278 (KR), filed on Mar. 13, 2018.
Prior Publication US 2024/0162502 A1, May 16, 2024
Int. Cl. H01M 10/42 (2006.01); G01B 7/06 (2006.01); G01M 3/36 (2006.01)
CPC H01M 10/4228 (2013.01) [G01B 7/06 (2013.01); G01M 3/36 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus for inspecting for a battery cell leak, comprising:
a vacuum chamber including an upper chamber and a lower chamber and configured to set a plurality of receiving spaces to a controlled pressure different from a first pressure, the upper chamber and the lower chamber being arranged to face each other with the plurality of receiving spaces therebetween and providing sealing for the plurality of receiving spaces, wherein the plurality of receiving spaces are configured to receive a plurality of battery cells respectively;
one or more pipe valves connected to the upper chamber between the plurality of receiving spaces and fluidly connected to the plurality of receiving spaces to set the controlled pressure different from the first pressure, wherein the controlled pressure is common among the plurality of receiving spaces, the one or more pipe valves including a vacuum pipe valve fluidly connected to the plurality of receiving spaces for the plurality of battery cells to set the plurality of receiving spaces to a second pressure less than the first pressure; and
a thickness measuring sensor configured to measure a before-vacuum thickness of the battery cell under the first pressure and measure an after-vacuum thickness of the battery cell under the second pressure.