Electrochemical energy storage characteristics of CaB6

摘要

CaB6 has a tunneled framework lattice structure that is suitable for intercalation of ions. Electrochemical charge-discharge testing of CaB6 in lithium containing non-aqueous electrolyte showed a specific capacitance of 35.7 F/g at 0.42 A/g current rating. Even though the specific capacitance was low, CaB6 shows promise as a Li-ion intercalating material because of its higher diffusivity (3 x 10(-10) cm(2)/s), p-type semiconductivity, high conductivity, and low density. Published by Elsevier B.V.