US 12,347,836 B2
Vehicle battery system and method for detecting and coping with swelling phenomenon
Jong Hwan Jeon, Anyang (KR); and Tae Gyung Kim, Seongnam (KR)
Assigned to SEOYON E-HWA CO., LTD., Anyang (KR)
Filed by SEOYON E-HWA CO., LTD., Anyang (KR)
Filed on Oct. 6, 2022, as Appl. No. 17/938,348.
Claims priority of application No. 10-2021-0133144 (KR), filed on Oct. 7, 2021.
Prior Publication US 2023/0113670 A1, Apr. 13, 2023
Int. Cl. H01M 10/48 (2006.01); G01B 21/32 (2006.01); G01R 31/367 (2019.01); H01M 10/42 (2006.01); H01M 50/411 (2021.01)
CPC H01M 10/482 (2013.01) [G01B 21/32 (2013.01); G01R 31/367 (2019.01); H01M 10/425 (2013.01); H01M 10/4257 (2013.01); H01M 10/486 (2013.01); H01M 50/411 (2021.01); H01M 2010/4271 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A battery system comprising:
a plurality of battery cells (100);
a polyurethane (PU) foam (200) arranged between the plurality of battery cells (100);
a strain gauge (300) disposed on a side surface of the battery cell (100);
a cell management controller (CMC) (400) that converts a signal received from the strain gauge (300) and transmits the converted signal to a battery management system (BMS) (500); and
the BMS (500) that determines a state of the battery cell (100) through the signal received from the CMC (400),
wherein the BMS (500) determines that a swelling phenomenon occurs when the signal input to the CMC (400) is transmitted to the BMS (500) and a time during which a value of the signal exceeds a set limit value continues for a set time or more due to a resistance value converted by the strain gauge (300), and thus an automatic coping operation is implemented, and
the BMS (500) is normally operated when the time during which the value of the signal transmitted to the BMS (500) exceeds the set limit value is not greater than the set time.