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1. WO2022090204 - ADAPTABLE SAFETY DEVICE ON AN ELECTROCHEMICAL CELL

Publication Number WO/2022/090204
Publication Date 05.05.2022
International Application No. PCT/EP2021/079638
International Filing Date 26.10.2021
IPC
H01M 50/342 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
30Arrangements for facilitating escape of gases
342Non-re-sealable arrangements
CPC
H01M 2200/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2200Safety devices for primary or secondary batteries
20Pressure-sensitive devices
H01M 50/342
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
30Arrangements for facilitating escape of gases
342Non-re-sealable arrangements
H01M 50/3425
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
30Arrangements for facilitating escape of gases
342Non-re-sealable arrangements
3425in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
Applicants
  • COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR]/[FR]
Inventors
  • VINCENT, Rémi
  • FERRIER, Nicolas
Agents
  • INNOV-GROUP
Priority Data
201110129.10.2020FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) ADAPTABLE SAFETY DEVICE ON AN ELECTROCHEMICAL CELL
(FR) DISPOSITIF DE SÉCURITÉ ADAPTABLE SUR UNE CELLULE ÉLECTROCHIMIQUE
Abstract
(EN) The invention relates to an adjustable safety device on an electrochemical cell (1), the cell comprising a container (10) in which a tube is placed, the container comprising at least a first wall provided with at least one break initiator, suitable for breaking in case of failure in order to expel gas, and a second wall for holding the tube in the container, characterized in that the safety device comprises: - a holding device for providing support against the second wall of the cell in order to hold it in position in case of thermal runaway and to retain the tube inside the container; - a gas release device for guaranteeing the expulsion of gas outside of the cell, in case of thermal runaway.
(FR) L'invention concerne un dispositif de sécurité adaptable sur une cellule électrochimique (1), ladite cellule comportant un conteneur (10) dans lequel est placé un bobinot, ledit conteneur comprenant au moins une première paroi dotée d'au moins une amorce de rupture, adaptée pour se rompre en cas de défaut pour expulser les gaz, et une deuxième paroi agencée pour assurer le maintien du bobinot dans ledit conteneur, caractérisé en ce que le dispositif de sécurité comporte : - Un dispositif de maintien agencé pour assurer un appui contre ladite deuxième paroi de la cellule pour la maintenir en position en cas d'emballement thermique et retenir le bobinot à l'intérieur dudit conteneur, - Un dispositif de libération des gaz, agencé pour garantir l'expulsion des gaz en dehors de la cellule, en cas d'emballement thermique.
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