Basf Se Corporation

Stefan Meuer

Klaus Menzel

Guenter Scherr

Anna Katharina Dürr

Günter Scherr

Günther Huber

Domnik Bayer

Jesus Enrique Zerpa Unda

Peter Heidebrecht

Christian Eichholz

Katrin Freitag

Günther Achhammer

Kai Stehmeier

Gabor Börzsönyi

An electrode unit for an electrochemical device, comprising (i) a solid electrolyte which divides a space for molten cathode material, selected from the group consisting of elemental sulfur and polysulfide of the alkali metal anode material, and a space for molten alkali metal anode material, and (ii) a porous solid state electrode directly adjacent to the solid electrolyte within the space for the cathode material, with a non-electron-conducting intermediate layer S present between the solid state electrode and the solid electrolyte, wherein this intermediate layer S has a thickness in the range from 0.5 to 5 mm and, before the first charge of the electrochemical device, has been impregnated fully with a polysulfide composition, comprising (A) pure polysulfides MetSwith Met=alkali metal of the alkali metal anode material selected from lithium, sodium, potassium, and x is dependent on the alkali metal and is 2, 3, 4 or 5 for Na and is 2, 3, 4, 5, 6, 7, 8 for Li and is 2, 3, 4, 5, 6 for K, or (B) mixtures of the polysulfides of one and the same alkali metal from (A) with one another.

Electrode unit for an electrochemical device

Beta-aluminum oxide ceramics obtainable by extrusion of a mixture that contains a sodium compound

The present invention relates to a new process for preparing condensation resins, constructed formally from urea, formaldehyde, and CH-acidic aldehydes.

Process for preparing condensation resins

The present invention relates to new condensation resins formed from urea, formaldehyde and CH-acidic aldehydes, to processes for preparing them, and to use thereof.

Process for preparing condensation resins and the use thereof

The present invention relates to new condensation resins of urea, formaldehyde, and CH-acidic aldehydes, to methods for preparing them, and to their use.

Method for preparing condensation resins and use thereof

Growing community of inventors

Worms, Germany

Stefan Meuer