US 12,243,988 B2
Battery pressure active control
Insu Chang, Troy, MI (US); Chen-fang Chang, Bloomfield Hills, MI (US); Jun-mo Kang, Ann Arbor, MI (US); Hanho Yun, Oakland Township, MI (US); Chunhao J. Lee, Troy, MI (US); Yongjie Zhu, Troy, MI (US); and Nicholas W. Pinto, Shelby Township, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Jul. 11, 2023, as Appl. No. 18/350,488.
Prior Publication US 2025/0023120 A1, Jan. 16, 2025
Int. Cl. H01M 10/42 (2006.01); B60L 50/64 (2019.01); H01M 10/052 (2010.01); H01M 10/48 (2006.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01)
CPC H01M 10/4257 (2013.01) [B60L 50/64 (2019.02); H01M 10/052 (2013.01); H01M 10/482 (2013.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01); B60L 2210/10 (2013.01); B60L 2210/40 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating a battery system comprising:
monitoring a value representative of a pressure of a battery pack;
determining whether the value falls within a pressure threshold window, the pressure threshold window being centered on an optimal pressure, wherein the optimal pressure is at least partially dependent on a target length between the first pressure plate and the second pressure plate; and
maintaining the value within the pressure threshold window by actively altering the pressure of a battery pack in response to the value falling outside the pressure threshold window, wherein maintaining the value within the pressure threshold window comprises controlling the length between the first pressure plate and the second pressure plate to the target length.