EP 4038399 A1 20220810 - METHOD FOR DETERMINING THE STATE OF HEALTH OF A LITHIUM-ION BATTERY
Title (en)
METHOD FOR DETERMINING THE STATE OF HEALTH OF A LITHIUM-ION BATTERY
Title (de)
VERFAHREN ZUR BESTIMMUNG DES GESUNDHEITSZUSTANDS EINER LITHIUM-IONEN-BATTERIE
Title (fr)
PROCÉDÉ DE DÉTERMINATION DE L'ÉTAT DE SANTÉ D'UNE BATTERIE LITHIUM-ION
Publication
Application
Priority
- FR 1910857 A 20191001
- EP 2020077381 W 20200930
Abstract (en)
[origin: CA3156639A1] The invention relates to a method for determining the state of health (SOH) of a lithium-ion battery (1), comprising: - a first step (E1) of determining a function (f) of the incremental capacity of the battery, - a second step (E2) of identifying peaks (P1, P2, P3) of the function (f) determined during the first step (E1), - a third step (E3) of determining voltage values (U1, U2, U3) at the terminals of the battery (1) for which the peaks (P1, P2, P3) are obtained, - a fourth step (E4) of determining the amplitudes of the peaks (P1, P2, P3), - a sixth step (E6) of determining the state of health (SOH) of the battery (1) according to a degradation mode of the battery and according to the amplitudes determined during the fourth step (E4).
IPC 8 full level
G01R 31/36 (2020.01); G01R 31/3835 (2019.01); G01R 31/392 (2019.01)
CPC (source: EP US)
G01R 31/3648 (2013.01 - EP); G01R 31/367 (2018.12 - US); G01R 31/3835 (2018.12 - EP US); G01R 31/392 (2018.12 - EP US); H01M 10/0525 (2013.01 - US); H01M 10/44 (2013.01 - US); H01M 10/48 (2013.01 - US); H02J 7/005 (2020.01 - US); H02J 7/007 (2013.01 - US); H01M 4/505 (2013.01 - US); H01M 4/525 (2013.01 - US); H01M 4/5825 (2013.01 - US); H01M 4/583 (2013.01 - US); H01M 2004/027 (2013.01 - US); H01M 2004/028 (2013.01 - US); Y02E 60/10 (2013.01 - EP)
Citation (search report)
See references of WO 2021064030A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3101429 A1 20210402; FR 3101429 B1 20210924; CA 3156639 A1 20210408; EP 4038399 A1 20220810; US 2022342003 A1 20221027; WO 2021064030 A1 20210408
DOCDB simple family (application)
FR 1910857 A 20191001; CA 3156639 A 20200930; EP 2020077381 W 20200930; EP 20780712 A 20200930; US 202017754402 A 20200930