The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 21, 1993

Filed:

Apr. 20, 1992
Applicant:
Inventors:

Peter Schlichenmaier, Fellbach, DE;

Wilfried Weyer, Stuttgart, DE;

Heinz-Georg Burghoff, Reichenbach, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 57 ; 429 90 ;
Abstract

An electrochemical storage device comprises an electrolyte which forms an ignitable gas under certain conditions during use. The electrochemical storage device is constituted by a tank and a lid which is joined in a liquid-tight manner thereto and in which the terminal pillars are brought out at the top. Furthermore, it has a labyrinth-type pressure equalization connection built into the lid to connect to atmosphere the space situated above the electrolyte and enclosed by the housing. A separate, shape-adapted displacement body having an hermetically closed cavity is disposed in the space between the lid and the electrolyte surface so that the housing does not burst in the event of an ignition of the gas.


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