US 12,339,634 B2
Battery cell thermal failure mitigation
Gordon Charles, Sunnyvale, CA (US); Hossain Mohammad Fahad, Berkeley, CA (US); and Ali Javey, Berkeley, CA (US)
Assigned to SERINUS LABS, INC, Berkeley, CA (US); and THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed by SERINUS LABS, INC, Berkeley, CA (US); and THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed on Apr. 10, 2023, as Appl. No. 18/297,954.
Application 18/297,954 is a continuation in part of application No. 17/892,622, filed on Aug. 22, 2022, granted, now 11,626,626.
Application 17/892,622 is a continuation of application No. PCT/US2021/018879, filed on Feb. 19, 2021.
Claims priority of provisional application 62/979,322, filed on Feb. 20, 2020.
Prior Publication US 2023/0244200 A1, Aug. 3, 2023
Int. Cl. G05B 19/042 (2006.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 10/613 (2014.01)
CPC G05B 19/042 (2013.01) [H01M 10/425 (2013.01); H01M 10/441 (2013.01); H01M 10/482 (2013.01); H01M 10/613 (2015.04); G05B 2219/2639 (2013.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rechargeable energy storage system (RESS) comprising:
at least one battery cell; and
a battery management system (BMS) configured to detect damage in the at least one battery cell prior to the at least one battery cell entering an irreversible thermal runaway event, the battery management system including:
at least one gas sensor array configured to detect one or more distinct gases vented by the at least one battery cell, wherein each gas sensor in the array is configured to detect a trace amount of one of the gases vented by the at least one battery cell indicative of damage in the at least one battery cell insufficient to trigger an irreversible battery cell thermal runaway; and
an electronic controller in operative communication with the at least one gas sensor array and with the at least one battery cell and configured to:
receive from the at least one gas sensor array data indicative of the detected trace amount of the at least one gas;
compare the received data indicative of the trace amount of the at least one gas with a threshold margin relative to an amount of the corresponding at least one gas indicative of damage in the at least one battery cell sufficient to trigger the irreversible battery cell thermal runaway;
identify the at least one battery cell as having been damaged when the detected trace amount is within the threshold margin; and
command a corrective action to mitigate further damage to the damaged at least one battery cell and reduce a likelihood of the damaged at least one battery cell entering the irreversible battery cell thermal runaway.