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1. (WO2017017064) LITHIUM STORAGE BATTERY WITH INTEGRATED CIRCUIT-BREAKER FOR IMPROVED OPERATING SAFETY

Pub. No.:    WO/2017/017064    International Application No.:    PCT/EP2016/067683
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Tue Jul 26 01:59:59 CEST 2016
IPC: H01M 2/02
H01M 2/16
H01M 2/26
H01M 2/34
H01M 10/0525
H01M 10/0587
Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors: DEWULF, Frédéric
JOST, Pierre
Title: LITHIUM STORAGE BATTERY WITH INTEGRATED CIRCUIT-BREAKER FOR IMPROVED OPERATING SAFETY
Abstract:
The present invention relates to an electrochemical storage battery (A) containing lithium, comprising an electrochemical bundle (F), two current collectors, one of which is connected to the bundle anode and the other to the bundle cathode, and a housing (6) elongated along a central axis (X) and having a lid (9), a bottom (8) and a side casing (7) joined to both the bottom and the lid, the housing being designed to receive the bundle in a sealed manner, and some of the current collectors forming the poles (40, 50) extending through the housing. According to the invention, a circuit-breaker device is provided, which has a housing bottom wall that deforms in the plastic deformation range, as well as a rated breaking line provided around the central portion of the collector, which can tear in order to electrically separate said central portion, connected to the bottom, from the main external surface of the current collector, which is connected to one end of the electrochemical bundle.