Abstract
The electrochemical characteristics of carbon nanobeads (CNBs) heat-treated at 1000, 1500, 2000, and were investigated. The discharge capacity was highest at the high rate in the heat-treated CNBs. Electrochemical impedance spectrometry indicated that the charge-transfer resistance of heat-treated CNBs was smaller, over a wide potential range, than for 1500 and CNBs. From the differential scanning calorimetry measurement, the temperature of CNBs heat-treatment had a direct linear relationship to the temperature of the largest exothermic peak: . The heat value of the large exothermic peak was proportional to the energy of lithiated CNBs.
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