US 12,272,805 B2
System and method for cooling battery cells
Dapeng Wang, San Jose, CA (US); and Jinjun Shi, San Jose, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on May 7, 2021, as Appl. No. 17/314,547.
Prior Publication US 2022/0359925 A1, Nov. 10, 2022
Int. Cl. H02J 7/00 (2006.01); H01M 10/48 (2006.01); H01M 10/613 (2014.01); H01M 10/635 (2014.01); H01M 10/6572 (2014.01)
CPC H01M 10/635 (2015.04) [H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/6572 (2015.04); H02J 7/0048 (2020.01); H01M 2220/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery system, comprising:
a battery cell;
a thermoelectric cooler (TEC) configured to cool the battery cell;
a temperature sensor configured to detect a first temperature of the battery cell; and
a battery management unit (BMU) controller configured to activate the TEC to cool the battery cell in response to determining that a state of charge (SOC) of the battery cell is greater than a threshold SOC and the first temperature of the battery cell is greater than a first threshold temperature.