A tin(iv) oxides/carbon nanotubes composite with core-tubule structure as an anode material for high electrochemistry performance LIBs

作者：Yu Ji^*; Li Li; Yang Zhenyu; Cai Jianxin

来源：RSC Advances, 2018, 8(24): 13186-13190.

DOI：10.1039/c8ra00346g

• LITHIUM-ION BATTERIES
• FUNCTIONALIZED CARBON NANOTUBES
• HYDROGEN EVOLUTION REACTION
• ONE-POT SYNTHESIS
• STORAGE PROPERTIES
• FACILE SYNTHESIS
• OXIDE
• NANOSHEETS
• NANOCOMPOSITES
• CAPABILITY

SnO2/CNTs composites with core-tubule structure are prepared by a facile wet chemical method. The investigation of electrochemical characteristics of the SnO2/CNTs composites shows that the composites exhibit some advantages, such as stable core-tubule structure, small particle size of SnO2, low electron-transfer resistance and faster lithium ion migration speed. The final product synthesized under optimized conditions can release a stable capacity of about 743 mA h g(-1) after 100 cycles at the current density of 0.4 A g(-1), 598 mA h g(-1) after 500 cycles at the current density of 4 A g(-1). Even at a super high current density of 8 A g(-1), the composite can still deliver a steady capacity of 457 mA h g(-1), and the discharge capacity can be restored to 998 mA h g(-1) when current density is decreased to 0.4 A g(-1).

• 出版日期2018
• 单位南昌大学