US 12,451,526 B2
Electrolyte sensor for sensing electrolyte creepage in a battery
Marcus Karlstad, Oskarshamn (SE); Rune Sjövall, Södra Sandby (SE); Robert Alexandersson, Gunnebo (SE); Roger Fransson, Oskarshamn (SE); Alexander Moberg, Oskarshamn (SE); and Miroslav Andel, Oskarshamn (SE)
Assigned to SAFT GROUPE SA, Levallois-Perret (FR)
Appl. No. 17/782,427
Filed by SAFT GROUPE SA, Levallois-Perret (FR)
PCT Filed Dec. 6, 2019, PCT No. PCT/IB2019/001385
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/111165, PCT Pub. Date Jun. 10, 2021.
Prior Publication US 2023/0010586 A1, Jan. 12, 2023
Int. Cl. H01M 10/42 (2006.01); G01N 17/02 (2006.01); H01M 10/06 (2006.01); H01M 10/30 (2006.01); H01M 10/48 (2006.01); H01M 50/569 (2021.01)
CPC H01M 10/4228 (2013.01) [H01M 10/06 (2013.01); H01M 10/30 (2013.01); H01M 10/425 (2013.01); H01M 10/482 (2013.01); H01M 10/484 (2013.01); H01M 10/486 (2013.01); H01M 50/569 (2021.01)] 13 Claims
OG exemplary drawing
 
1. A set comprising:
a battery,
an electrical circuit, and
a sensor element being connected within the electrical circuit, the electrical circuit being connected to the battery, said battery comprising one or more electrochemical cells containing an electrolyte, wherein the sensor element is an electrical conductor element which is a wire wholly enclosed into an electrically insulating enclosure, wherein
the sensor element comprises two ends, each of said ends being equipped with connection means respectively connected to two connections points of the electrical circuit, the two connection points being an end of a first wire and an end of a second wire of the electrical circuit, one of said connection points being mechanically connected through a cable lug to a terminal of an electrochemical cell of the battery, and wherein at least one electrical property of the electrical conductor element varies when in contact with the electrolyte, such as to allow detection of an electrolyte creepage from an electrochemical cell of the battery by measurement of the variation of the one electrical property of the electrical conductor element.