Leaktight box for alkaline batteries

Abstract

Leaktight box for alkaline electrolyte battery, comprising an assembly of metal plates, where: - a first and a second plate overlap in a zone of overlap and are assembled with rivets each comprising a head, a stem and a bulb; - the stem of the rivets is deformed in such a way as to occupy in a leaktight manner substantially all of the volume of said holes of the first and second plates; - preferably an elastomer seal comprising a material chosen from among a butyl rubber, an ethylene‑propylene‑diene terpolymer and a nitrile rubber, where said seal is disposed in continuity with the overlap zone in continuous contact with the first and the second plate in such a way as to complete the leaktightness of the box.

Description

technical field [0001] The technical field of the invention is containers for storing single cells containing liquid electrolytes. The invention also relates to a method of manufacturing such a battery container. Background technique [0002] A secondary battery generally includes a plurality of secondary cells arranged side by side. The cells are connected together in series or in parallel depending on the nominal operating voltage of the electrical load to be supplied and the amount of energy intended to be supplied to the electrical load. In order to facilitate the transportation and storage of the secondary cells constituting the battery, the secondary cells are usually placed in a common housing called a battery tray according to IEC 60050-482. A battery tray is defined as a container with a bottom and walls for holding multiple batteries. Such battery trays typically consist primarily of multiple metal plates assembled together. [0003] In addition to being connec...

AI Technical Summary

Problems solved by technology

[0011] - Welding operations require qualified personnel at a relatively high cost;

[0012] - two different types of materials may not be compatible for welding;

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