Electrolyte pouch cell, method of making same, and battery system therefor

US10586999B2 · kind B2 · utility

Assignee

• INDUSTRIE-PARTNER GMBH RADEBEUL-COSWIG · DE

Inventors

• Christin Locke · Coswig, DE
• Falko Hahnewald · Wilthen, DE
• Georg Handrick · Bernsdorf, DE
• Ralf Hock · Chemnitz, DE

Key dates

• Filing date: May 20, 2016
• Grant date: Mar 10, 2020
• Expiry date: Jun 30, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

In a method for producing electrolyte pouch cells (1) for an electric battery arrangement, a first flat section (2) of a foil is put into position, a cell stack (8) with integrated electrodes and separators and also attached arresters is arranged and oriented on the positioned first flat section (2), a second flat section of the foil is positioned on the first flat section (2) of said foil and the cell stack (8), and the two flat sections of the foil are welded to one another at their regions which surround the cell stack (8) and are not connected to one another, so as to form a sealed seam. In order to design the electrolyte pouch cell, which is produced using the method outlined above, with a low level of expenditure such that it can be filled under vacuum, can be temporarily closed, is suitable for the removal of forming gas and can once again be finally closed, it is proposed that, in the method outlined above, at least one passage (3) is put into position in the region of the sealed seam before the two flat sections of the foil are welded, and that, when the sealed seam is welded, the at least one passage (3) is sealed into said sealed seam.