EP 3942292 A1 20220126 - SYSTEMS AND METHODS FOR ACOUSTICALLY ASSESSING ELECTROLYTE WETTING AND DISTRIBUTION IN A SECONDARY BATTERY
Title (en)
SYSTEMS AND METHODS FOR ACOUSTICALLY ASSESSING ELECTROLYTE WETTING AND DISTRIBUTION IN A SECONDARY BATTERY
Title (de)
SYSTEME UND VERFAHREN ZUR AKUSTISCHEN BEWERTUNG DER BENETZUNG UND VERTEILUNG VON ELEKTROLYTEN IN EINER SEKUNDÄRBATTERIE
Title (fr)
SYSTÈMES ET PROCÉDÉS D'ÉVALUATION ACOUSTIQUE DU MOUILLAGE ET DE LA DISTRIBUTION D'ÉLECTROLYTE DANS UNE BATTERIE SECONDAIRE
Publication
Application
Priority
- US 201962821605 P 20190321
- US 2020024190 W 20200323
Abstract (en)
[origin: CN113906291A] Systems and techniques for measuring process characteristics including electrolyte distribution in a battery cell. A non-destructive method for analyzing a battery cell includes determining acoustic features at two or more locations of the battery cell, the acoustic features based on one or more of acoustic signals travelling through at least one or more portions of the battery cell during one or more points in time or responses to the acoustic signals obtained during one or more points in time, wherein the one or more points in time correspond to one or more stages of electrolyte distribution in the battery cell. One or more characteristics of the battery cell are determined based on the acoustic features at the two or more locations of the battery cell.
IPC 8 full level
G01N 29/024 (2006.01); G01N 29/032 (2006.01); G01N 29/036 (2006.01); H01M 10/04 (2006.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01)
CPC (source: EP)
G01F 23/296 (2013.01); G01N 29/024 (2013.01); G01N 29/032 (2013.01); G01N 29/036 (2013.01); G01N 29/262 (2013.01); G01N 29/4427 (2013.01); G01N 29/46 (2013.01); H01M 10/0413 (2013.01); H01M 10/446 (2013.01); H01M 50/60 (2021.01); G01N 2291/022 (2013.01); G01N 2291/02441 (2013.01); G01N 2291/02836 (2013.01); G01N 2291/105 (2013.01); G01N 2291/106 (2013.01); H01M 10/4285 (2013.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11)
Citation (search report)
See references of WO 2020191396A1
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)
DOCDB simple family (application)
CN 202080037751 A 20200323; EP 20719297 A 20200323