Basf Se Corporation

Sion Power Corporation

Elcomax Membranes Gmbh

Samsung Electronics Co., Ltd.

Carl Freudenberg Kg

Lanxess Deutschland Gmbh

Rhein Chemie Rheinau Gmbh

Dupont Safety & Construction, Inc.

Oliver Gronwald

Martin Weber

Nicole Janssen

Jörg Belack

Yuriy V Mikhaylik

Frank Prissok

Alexander Panchenko

Friederike Fleischhaker

Ruediger Schmidt

Juergen Ahlers

Dieter Melzner

Bala Sankaran

Christoph Hartnig

David L Coleman

Annette Reiche

Thomas Justus Schmidt

Ingrid Haupt

Ursula Huber-Moulliet

Werner Obrecht

Michael Roth

Klaus Leitner

Igor P Kovalev

Seongwoo Choi

Arnd Garsuch

Ulrich Karl

Jochen Baurmeister

Frank Rittig

Thomas Früh

Torsten Ziser

Domnik Bayer

Sigmar Bräuninger

Martin Heijnen

Jürgen Ahlers

Henning Urch

Christoph Weber

Gunter Christ

Ashley H Bulldis

Detlef Ott

Benjamin Schmidt-Hansberg

Jung Seok Yi

Sandra Falusi

Ömer Ünsal

Ulrich Mahr

Ulrich Mähr

Jung Ock Park

Margitta Berg

Sigrid Geiger

Gunter Hauber

Woo Sung Jeon

Nicolas Marion

Daniel Malko

Joerg Belack

Thomas FRÜH

An electrode structure and its method of manufacture are disclosed. The disclosed electrode structures may be manufactured by depositing a first release layer on a first carrier substrate. A first protective layer may be deposited on a surface of the first release layer and a first electroactive material layer may then be deposited on the first protective layer.

Protected electrode structures

A process for welding porous membranes, the process containing i) providing first and second porous membranes; ii) at least partially superimposing the first and second porous membranes to obtain an at least partial superimposition region; iii) welding the first and second porous membranes at least in a portion of the at least one superimposition region at a temperature in the range from 100 to 300&#xb0; C. to obtain an at least partially welded composite of the first and second porous membranes, wherein the first and second porous membranes are made of at least one thermoplastic elastomer selected from the group consisting of a polyurethane elastomer, a polyester elastomer, a polyetherester elastomer, a polyesterester elastomer, a polyamide elastomer, a polyetheramide elastomer, a polystyrene elastomer, and an ethylene-vinyl acetate elastomer, and wherein the first and second porous membranes have pores having an average pore diameter of less than 2000 nm.

Method for welding membranes

The invention relates to an elastic membrane comprising an elastomer having an elongation at break of greater than 150% measured according to DIN 53504, wherein the thermoplastic elastomer (P1) comprises a polyurethane elastomer based on the following components:

Elastic membrane

Process for making membranes M comprising the following steps: a) providing a dope solution D comprising at least one polymer P and at least one solvent S, b) adding at least one coagulant C to said dope solution D to coagulate said at least one polymer P from said dope solution D to obtain a membrane M, wherein said at least one solvent S comprises more than 50% by weight of at least one compound according to formula (I) (I), wherein Rand Rare independently Cto Calkyl, Ris selected from H or an aliphatic rest, 20 Ris selected from H or an aliphatic rest, AO represents at least one alkylene oxide, n is a number from 0 to 100. 

Process for making membranes

Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

Polymer for use as protective layers and other components in electrochemical cells

The present invention relates to improved membrane electrode assemblies and fuel cells with long lifetime, comprising two electrochemically active electrodes separated by a polymer electrolyte membrane based on polyoxazoles.

Membrane electrode assemblies and fuel cells with long lifetime

The present invention relates to improved membrane electrode assemblies and fuel cells with long lifetime, comprising two electrochemically active electrodes separated by a polymer electrolyte membrane based on polybenzoxazole-polybenzimidazole block polymers.

The present invention relates to electrode materials for charged electrical cells, comprising at least one polymer comprising polysulfide bridges, and carbon in a polymorph comprising at least 60% sp-hybridized carbon atoms. The present invention further relates to electrical cells comprising the inventive electrode material, to specific polymers comprising polysulfide bridges, to processes for preparation thereof and to the use of the inventive cells.

Electrode materials for electrical cells

The present invention relates to composite materials comprising a reaction product of (A) at least one organic polymer, (B) sulfur, (C) carbon in a polymorph which comprises at least 60% sp-hybridized carbon atoms, and (D) 2-20% by weight of a perfluorinated or partly fluorinated polymer, based on the total weight of components (A), (B) and (C) used before reaction, and also to a process for producing inventive composite materials and to the use of inventive composite materials.

Composite materials, production thereof and use thereof in electrical cells

Proton-conducting polymer electrolyte membrane based on a polyazole salt of an inorganic or organic acid which is doped with an acid as electrolyte, wherein the polyazole salt of the organic or inorganic acid has a lower solubility in the acid used as electrolyte than the polyazole salt of the acid used as electrolyte, a process for producing the inventive proton-conducting polymer electrolyte membrane, a membrane-electrode assembly comprising at least two electrochemically active electrodes which are separated by a polymer electrolyte membrane, wherein the polymer electrolyte membrane is a proton-conducting polymer electrolyte membrane according to the invention, and a fuel cell comprising at least one membrane-electrode assembly according to the invention.

Polymer electrolyte membrane based on polyazole

A process for preparing mechanically stabilized polyazoles, comprising the following steps: The polyazoles thus obtainable are notable especially for a high conductivity and a very good mechanical stability. They are therefore especially suitable for applications in fuel cells.

Mechanically stabilized polyazoles comprising at least one polyvinyl alcohol

A method for the production of a mechanically stabilized polyazole polymer membrane or film having the following steps:

Method for mechanically stabilizing nitrogen-containing polymers

The present invention relates to separators for electrochemical cells comprising The present invention further relates to the use of inventive separators and to apparatuses, especially electrochemical cells, comprising inventive separators.

Separators for electrochemical cells comprising polymer particles

The present invention relates to a membrane electrode assembly comprising at least two electrochemically active electrodes separated by at least one polymer electrolyte membrane, the aforementioned polymer electrolyte membrane having fibrous reinforcing elements which at least partly penetrate the polymer electrolyte membrane, wherein at least some of the fibrous reinforcing elements have functional groups which have a covalent chemical bond between the fibers and the polymer of the polymer electrolyte membrane. The membrane electrode assembly is suitable for applications in fuel cells, especially in high-temperature polymer electrolyte fuel cells.

Membrane electrode assembly and fuel cells with improved lifetime

Growing community of inventors

Frankfurt-am-Main, Germany

Oliver Gronwald