Polyacrylonitrile-sulphur composite material

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United States of America Patent

PATENT NO 9252425
APP PUB NO 20140127589A1
SERIAL NO

14115248

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Abstract

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The invention relates to a method for preparing a polyacrylonitrile-sulfur composite material, in which, polyacrylonitrile is converted to cyclized polyacrylonitrile, and the cyclized polyacrylonitrile is reacted with sulfur to form a polyacrylonitrile-sulfur composite material. By a separation of the preparation method into two partial reactions, the reaction conditions are advantageously able to be optimized for the respective reactions and a cathode material is able to be provided for alkali-sulfur cells with improved electrochemical properties. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali-sulfur cell or an alkali-sulfur battery as well as to an energy store.

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBH70442 STUTTGART

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fanous, Jens Stuttgart, DE 1 13
Grimminger, Jens Leonberg, DE 26 132
Tenzer, Martin Unterensingen, DE 31 265
Wegner, Marcus Leonberg, DE 27 116

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