Carboxylated carbon nanotube anchored MnCO3 nanocomposites as anode materials for advanced lithium-ion batteries
作者： Fan Zhang , Ruihan Zhang , Gemeng Liang , Jinkui Feng , Li Lu
DOI: 10.1016/J.MATLET.2013.08.115
关键词:
摘要: Abstract Well dispersed MnCO3/carboxylated carbon nanotube (CNT) nanocomposites are prepared by a facile solution precipitation method. Transmission electron microscopy (TEM) characterizations show that due to heterogeneous nucleation sizes the addition of carboxylated CNT is able suppress growth MnCO3 particles, resulting in formation nano-sized particles. Electrochemical characterization lithiation/delithiation MnCO3/CNT reveals large capacity 772 mA h g−1 for first cycle with 84% retention after 100 cycles. The superior electrochemical performance electrode compared pure can be attributed super-fine particles and good conductivity presence CNTs. Their surface area facilitates fast lithium ion transport accommodates big volume change during conversion reactions.
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