Nanocomp Technologies is developing Carbon Nanotube (CNT) materials for battery applications.  Our CNT sheet material can be used as current collectors for both the anode and cathode, as well as the case.  The material has been coated with silicon for the anode in a Lithium-ion battery, and shown to have greatly enhanced capacity relative to standard graphitic electrodes without the degradation, and with less internal resistance.  We are also exploring the use of CNT sheet current collectors in conjunction with stabilized sulfur for the cathode. We also expect greater thermal safety in the CNT system since, unlike copper, the thermal conductivity increases with temperature.  Furthermore, replacing the aluminum cathode current collector allows the use of more aggressive electrolytes.  It has become apparent that CNT current collectors and casing can replace metals to improve battery capacity, energy and power.

Carbon nanotube material for battery applications

245th National Meeting (2013)

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