Basf Aktiengesellschaft

Basf Se Corporation

Sion Power Corporation

Helmut Moehwald

Igor P Kovalev

Ruediger Schmidt

Rolf Muelhaupt

Thorsten Bock

Yuriy V Mikhaylik

Rolf Pinkos

Eckhard Stroefer

John D Affinito

Ulrich Steinbrenner

Alexander Panchenko

Sorin Ivanovici

Kai Thiele

Anna Cristadoro

Martin Sohn

Helmut Muenstedt

Filip Deberdt

Bastian Ewald

Jan D Jacobs

Ingrid Haupt

Raimund Pietruschka

Rolf Mühlhaupt

Veronika Quaschning

Philip Hanefeld

Ottmar Baur

Gerhard Hellwig

Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones, polyvinylalcohols (PVOH) and branched polyimides (HPI). The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments.

Electrolyte materials for use in electrochemical cells

The present invention relates to a solid composite for use in the cathode of a lithium-sulphur electric current producing cell wherein the solid composite comprises 1 to 75 wt.-% of expanded graphite, 25 to 99 wt.-% of sulphur, 0 to 50 wt.-% of one or more further conductive agents other than expanded graphite, and 0 to 50 wt.-% one or more binder, based on the total amount of the solid composite, a lithium-sulphur electric current producing cell comprising (i) a cathode comprising the solid composite, (ii) an anode and (iii) an electrolyte interposed between said cathode and said anode, and a process for preparing the solid composite comprising the steps (I) preparing a slurry comprising sulphur, expanded graphite, and optionally further components in a liquid medium by dispersing the sulphur, the expanded graphite, and optionally the further components in the liquid medium; (II) casting the slurry provided in step (I) on a substrate or placing the slurry provided in step (I) into a mold; and (III) removing some or all of the liquid medium from the slurry cast in step (II) to form a solid composite.

Use of expanded graphite in lithium/sulphur batteries

The present invention relates to halogen-free, oligomeric or polymeric phosphonic acids made up of units of the general formula (I)&#x2014;[(O)&#x2014;{R(X)(Y)}R(X)]&#x2014;[(O)&#x2014;R(X)]&#x2014;&#x2003;&#x2003;(I),where: where the radicals X are substituents on Rand Rand the radicals Y are parts of polymer or oligomer chain, to a process for preparing these compounds and also to halogen-free mixtures comprising one or more compounds of the general formula (I) and a nitrogen-free solvent having a boiling point of &#x3e;150&#xb0; C.

Oligomeric and polymeric aromatic phosphonic acids, their blends, processes for preparing them and uses as polyelectrolytes

Process for preparing polymeric aromatic phosphonates and also polymeric aromatic phosphonates which can be prepared by the process of the invention and blends comprising these polymeric aromatic phosphonates and at least one further polymer and also films, composites and membranes comprising these polymers or blends, the use of the membranes of the invention in fuel cells or in separation technology and also fuel cells comprising the membranes of the invention.

Catalytic process for the phosphonylation of high-temperature polymers

A process is described for preparing diaminodiarylmethanes comprising the steps

Method for the production of diaminodiarylmethanes

In a solid-state capacitor comprising a positive and a negative electrode, a dielectric medium and a solid electrolyte, the solid electrolyte contains an electroconductive polymer as essential constituent.

Solid-state capacitor with an electroconductive polymer as constituent

Laminates of metals and electrically conductive polymers are prepared by a process in which first a layer of an electrically conductive polymer is applied onto the surface of the metal by treating the monomers with an oxidizing agent, the metal coated in this manner is immersed in a solution which contains an anodically polymerizable monomer and a conductive salt, and the monomer is anodically polymerized so that it is deposited onto the coated metal.

Preparation of laminates of metals and electrically conductive polymers

In a composite material consisting of a porous material and electrically conductive polymers, the surface of the pores of the porous material is first coated with a layer of an electrically conductive polymer obtained by treating the monomers with an oxidizing agent, and a layer of an electrically conductive polymer obtained by anodic oxidation of the monomers is applied on top of this.

Composite material consisting of porous materials and electrically

Growing community of inventors

Annweiler, Germany

Helmut Moehwald