US 11,885,829 B2
Maturation processes for electric batteries cells
Joel Sylvester, Penicuik (GB); Timothy Crymble, Penicuik (GB); Grant Stone, Thurso (GB); Gregory Cameron, Thurso (GB); and Josh Robert Leworthy, Edinburgh (GB)
Assigned to DUKOSI LIMITED, Edinburgh (GB)
Appl. No. 16/639,518
Filed by DUKOSI LIMITED, Edinburgh (GB)
PCT Filed Aug. 14, 2018, PCT No. PCT/GB2018/052312
§ 371(c)(1), (2) Date Feb. 14, 2020,
PCT Pub. No. WO2019/034869, PCT Pub. Date Feb. 21, 2019.
Claims priority of application No. 1713033 (GB), filed on Aug. 14, 2017.
Prior Publication US 2020/0225290 A1, Jul. 16, 2020
Int. Cl. H01M 10/44 (2006.01); G01R 31/388 (2019.01); G01R 31/396 (2019.01); G01R 31/385 (2019.01); G01R 31/374 (2019.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01)
CPC G01R 31/388 (2019.01) [G01R 31/374 (2019.01); G01R 31/3865 (2019.01); G01R 31/396 (2019.01); H01M 10/0525 (2013.01); H01M 10/4228 (2013.01); H01M 10/446 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A maturation process for an electric battery cell, the process comprising:
charging the electric battery cell;
subjecting the electric battery cell to a maturation period of at least one day wherein no electrical load other than a measurement apparatus is connected to the electric battery cell;
taking at least one measurement of an open circuit voltage of the electric battery cell during the maturation period using the measurement apparatus, wherein the measurement apparatus is incorporated into a structure of the electric battery cell, forming an integral part of the electric battery cell; and
determining whether the electric battery cell is defective in dependence on the at least one measurement.