| 초록 |
As the energy crisis becomes the most important issue, secondary batteries, especially the Li-ion battery (LIB), was spotlighted as an efficient energy storage system. Among the confronted challenges, enhancing specific energy density is urgently needed to apply LIBs to electric vehicle or stationary energy storage systems. In present study, we were motivated to create germanium nanoparticles (GeNPs)/carbon hybrids with high dispersion by taking advantage of higher theoretical capacity of Ge (1600 mAh/g) than graphite (370 mAh/g). Self-assembled block copolymer and thermoset polymers were employed to prepare regularly arrayed GeNPs within polymer matrices where all polymeric materials turned into carbon by pyrolysis. The electrochemical properties of the fabricated GeNPs/carbon hybrid anode were examined by a half cell test and high capacity and rate capability were achieved. |
