Electrode unit

US9957625B2 · kind B2 · utility

Inventors

• Günther Huber · Ludwigshafen, DE
• Jesus Enrique Zerpa Unda · Ludwigshafen, DE
• Michael Lutz · Speyer, DE
• Peter Heidebrecht · Ludwigshafen, DE
• Domnik Bayer · Ludwigshafen, DE
• Wolfgang Jabczynski · Ludwigshafen, DE
• Anna Katharina Dürr · Ludwigshafen, DE
• Katrin Freitag · São Paulo, BR

Key dates

• Filing date: Jun 11, 2013
• Grant date: May 1, 2018
• Expiry date: Feb 12, 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

The invention relates to an electrode unit for an electrochemical device, comprising a solid electrolyte (3) and a porous electrode (7), the solid electrolyte (3) dividing a compartment for cathode material and a compartment for anode material and the porous electrode (7) being extensively connected to the solid electrolyte (3), with a displacer (23) being accommodated in the anode material compartment, where the displacer (23) is manufactured from a stainless steel or from graphite foil and bears resiliently against the internal geometry of the solid electrolyte (3) in such a way that the displacer (23) does not contact the solid electrolyte over its full area, or with the displacer comprising an outer shell (62) of stainless steel or graphite, and a core (64) of a nonferrous metal, the nonferrous metal being thermoplastically deformable at a temperature which is lower than the temperature at which the stainless steel is thermoplastically deformable, and where for production the shell (62) of stainless steel or graphite is pressed onto the solid electrolyte (3) by introduction and heating of the nonferrous metal, and on cooling forms a gap between solid electrolyte (3) and shell (…