US 12,113,378 B2
Large-format battery management system with state of charge balancing
Jianfei Liu, Guangdong Province (CN); Jujie Xia, Guangdong Province (CN); Youwu Chen, Guangdong Province (CN); Huizhi Chen, Guangdong Province (CN); Wenhua Li, Guangdong Province (CN); Ke Yan, Guangdong Province (CN); Changda Guan, Guangdong Province (CN); Zibin Cheng, Guangdong Province (CN); William Tenorio, Glenview, IL (US); Daniel Kang, Elk Grove Village, IL (US); and Chris Turner, Dublin, OH (US)
Assigned to Inventus Power, Inc., Woodridge, IL (US)
Filed by Inventus Power, Inc., Woodridge, IL (US)
Filed on May 26, 2023, as Appl. No. 18/202,612.
Application 18/202,612 is a continuation of application No. 17/395,987, filed on Aug. 6, 2021, granted, now 11,699,908.
Application 17/395,987 is a continuation of application No. 17/183,422, filed on Feb. 24, 2021, granted, now 11,095,140, issued on Aug. 17, 2021.
Application 17/183,422 is a continuation of application No. 16/937,931, filed on Jul. 24, 2020, granted, now 10,944,278, issued on Mar. 9, 2021.
Application 16/937,931 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Application 17/183,422 is a continuation of application No. 16/937,979, filed on Jul. 24, 2020, granted, now 10,944,279, issued on Mar. 9, 2021.
Application 16/937,979 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Application 17/183,422 is a continuation of application No. 16/938,008, filed on Jul. 24, 2020, granted, now 10,938,221, issued on Mar. 2, 2021.
Application 16/938,008 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Application 17/183,422 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Prior Publication US 2023/0387696 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/44 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/46 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01)
CPC H02J 7/00032 (2020.01) [H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/4257 (2013.01); H01M 10/441 (2013.01); H01M 10/482 (2013.01); H02J 7/0013 (2013.01); H02J 7/0014 (2013.01); H02J 7/0029 (2013.01); H02J 7/0047 (2013.01); H02J 7/0048 (2020.01); H02J 7/0063 (2013.01); H02J 7/007 (2013.01); H02J 7/00712 (2020.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of powering an end device by a battery system, the battery system comprising a plurality of battery packs, the method comprising:
gathering, by a master battery pack of the battery system, battery status information from each battery pack of the plurality of battery packs, wherein the plurality of battery packs comprises the master battery pack and one or more slave battery packs and wherein the battery status information from each battery pack includes state of charge (SoC) data;
determining, by the master battery pack and based the battery status information, whether a first subset of the plurality of battery packs have different SoC data;
selecting, by the master battery pack, a first type of balancing from a plurality of balancing types appropriate for the first subset of the plurality of battery packs; and
performing, by the master battery pack, the selected first type of balancing via a power bus until desired SoC values are obtained for the first subset of the plurality of battery packs.