ELECTROCHEMICAL CELL COMPRISING A SEALING SYSTEM FORMING A ONE-WAY VALVE

An electrochemical cell comprising:- a can (14) defining an interior volume (16), an exterior volume (18), and a orifice (20),- a terminal (22) comprising an external contact (24), a foot (26, and a post (28),- a sealing system (30) for preventing moisture from entering the interior volume, comprisi...

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Bibliographic Details
Main Authors ORIGUCHI, Masato, CHOI, Hangjune
Format Patent
LanguageEnglish
French
German
Published 02.10.2024
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:An electrochemical cell comprising:- a can (14) defining an interior volume (16), an exterior volume (18), and a orifice (20),- a terminal (22) comprising an external contact (24), a foot (26, and a post (28),- a sealing system (30) for preventing moisture from entering the interior volume, comprising an elastomeric material and having a peripheral part (38) and a central part (40) delimiting an intermediate chamber (42), the peripheral part being compressed between the can and the foot.The sealing system includes a permeation portion (46) comprising a polymer material, and extending through the peripheral part and the central part to allow gas molecules from the interior volume into the intermediate chamber, the central part comprising a tight lip (48) around the post for forming a one-way valve (50) between the intermediate chamber and the exterior volume.
Bibliography:Application Number: EP20230305465