Metal phthalocyanine/carbon nano tube composite catalyst and its preparation method and lithium/thinly chloride battery using the catalyst

A carbon nanotube composite, metal phthalocyanine technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. It can solve the problems such as chemical change, unfavorable battery discharge, etc., to achieve significant practical value and economic benefits, improve the discharge voltage, and the effect of large migration space.
CN101507930AInactive Publication Date: 2009-08-19SOUTH CHINA NORMAL UNIVERSITY +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2009-08-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a metal phthalocyanine / carbon nanometer pipe compound catalyst, a method for preparing the same and a lithium / thionyl chloride battery using the same, wherein the metal phthalocyanine / carbon nanometer pipe compound catalyst is prepared by evenly and closely loading metal phthalocyanine compounds on a carbon nanometer pipe; and the metal phthalocyanine / carbon nanometer pipe compound catalyst is mixed with carbon black and a binding agent, and the mixture subjected to forming and drying to prepare an anode carbon plate of the lithium / thionyl chloride battery using the catalyst. The metal phthalocyanine compounds are evenly and closely loaded on the carbon nanometer pipe. On one hand, the electrically discharged product of a LiCl film can be loosened by the catalysis of the metal phthalocyanine compounds; on the other hand, a network structure is built up in the carbon anode of the carbon nanometer pipe, which facilitates the electric communication of electrolytes and the improvement of electric conductivity of the electrodes. Due to the synergetic effect of the metal phthalocyanine compounds and the carbon nanometer pipe, the operating voltage of the lithium / thionyl chloride battery is improved. The method has advantages of simple process, simple operation, the suitability for industrialized production and obvious practical values and economic benefits.
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Description

technical field

[0001] The invention relates to the field of lithium / thionyl chloride batteries. Background technique

[0002] Lithium / thionyl chloride battery is the primary battery with the highest specific energy in the battery system currently used in the world. The positive electrode material of the battery is mainly a mixture of carbon black and polytetrafluoroethylene emulsion. The carbon black is usually acetylene black, which is not only a catalyst for the cathode reaction, but also a carrier for LiCl and S, the electrochemical reaction products. Generally, carbon materials have a catalytic effect on the reduction of thionyl chloride, and the stronger the catalytic effect, the larger the discharge capacity and the higher the discharge voltage obtained.

[0003] Carbon nanotubes were first formally proposed in 1991. They can be regarded as seamless hollow nanoscale coaxial cylinders formed by curling graphite sheets with a hexagonal structure, and the two ends are c...

Claims

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