Alevo International S.a.

Innolith Assets Ag

Alevo Research Ag

Claus Dambach

Christian Pszolla

Laurent Zinck

Christiane Ripp

Guenther Hambitzer

Joachim Heitbaum

Günther Hambitzer

Martin Kampa

The present invention relates to a rechargeable electrochemical battery cell having a housing, a positive electrode, a negative electrode, and an electrolyte, the electrolyte containing sulfur dioxide and a conductive salt of the active metal of the cell. The total quantity of oxygen-containing compounds contained in the cell that are able to react with the sulfur dioxide, reducing the sulfur dioxide, is not more than 10 mMol per Ah theoretical capacitance of the cell.

Rechargeable electrochemical cell

Disclosed is a process for producing an electrolyte for an electrochemical battery cell. In this process, a Lewis acid, a Lewis base and aluminum are mixed. The mixture is heated for a minimum period of six hours to a temperature above a minimum temperature of at least 200&#xb0; C. and above the melting point of the mixture. An adduct of the Lewis acid and the Lewis base is thereby formed.

Process for producing electrolyte for electrochemical battery cell

Electrolyte for an electrochemical battery cell, containing sulfur dioxide and a conductive salt. Improved characteristics of a cell filled with the electrolyte are achieved in that the molar concentration of hydroxide groups in the electrolyte is at most 50 mmol per liter and the molar concentration of chlorosulfonate groups in the electrolyte is at most 350 mmol per liter.

Electrolyte for electrochemical battery cell and battery cell containing the electrolyte

Growing community of inventors

Pfinztal, Germany

Claus Dambach