US 11,940,500 B1
Method of detecting metal plating in intercalation cells
On K. Chang, San Jose, CA (US); and Dania Ghantous, Walnut Creek, CA (US)
Assigned to Qnovo Inc., Milpitas, CA (US)
Filed by Qnovo Inc., Newark, CA (US)
Filed on Dec. 14, 2021, as Appl. No. 17/644,116.
Application 17/644,116 is a continuation of application No. 15/678,030, filed on Aug. 15, 2017, granted, now 11,237,216.
Int. Cl. G01R 31/382 (2019.01); B60L 58/12 (2019.01); G01R 31/388 (2019.01); G01R 31/392 (2019.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01)
CPC G01R 31/382 (2019.01) [B60L 58/12 (2019.02); G01R 31/388 (2019.01); G01R 31/392 (2019.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H02J 7/00711 (2020.01); H02J 7/0047 (2013.01); H02J 7/0048 (2020.01)] 16 Claims
OG exemplary drawing
 
9. An apparatus for controlling a charging process of a rechargeable battery, comprising:
monitoring and control circuitry, coupled to the rechargeable battery, configured to:
charge the rechargeable battery using a first charging process;
detect that metal has deposited on a negative electrode of the rechargeable battery during the first charging process;
estimate an amount of metal that has deposited on the negative electrode of the rechargeable battery, wherein estimating the amount of metal that has deposited is based at least in part on a difference between a measured current produced by the rechargeable battery and an expected current; and
adjust the first charging process to produce a second charging process, wherein parameters of the second charging process are determined based at least in part on the estimated amount of metal that has deposited on the negative electrode of the rechargeable battery.