首页|Electrospraying Si/SiOx/C and Sn/C nanosphere arrays on carbon cloth for high-performance flexible lithium-ion batteries
Electrospraying Si/SiOx/C and Sn/C nanosphere arrays on carbon cloth for high-performance flexible lithium-ion batteries
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Electrospraying Si/SiOx/C and Sn/C nanosphere arrays on carbon cloth for high-performance flexible lithium-ion batteries
Exploring electrode materials with larger capacity,higher power density and longer cycle life was critical for develop-ing advanced flexible lithium-ion batteries(LIBs).Herein,we used a controlled two-step method including electrospraying fol-lowed with calcination treatment by CVD furnace to design novel electrodes of Si/Six/C and Sn/C microrods array consisting of nanospheres on flexible carbon cloth substrate(denoted as Si/Six/C@CC,Sn/C@CC).Microrods composed of cumulated nanospheres(the diameter was approximately 120 nm)had a mean diameter of approximately 1.5 µm and a length of around 4.0 µm,distributing uniformly along the entire woven carbon fibers.Both of Si/Si/Six/C@CC and Sn/C@CC products were synthe-sized as binder-free anodes for Li-ion battery with the features of high reversible capacity and excellent cycling.Especially Si/Six/C electrode exhibited high specific capacity of about 1750 mA∙h∙g-1 at 0.5 A∙g-1 and excellent cycling ability even after 1050 cycles with a capacity of 1388 mA∙h∙g-1.Highly flexible Si/Six/C@CC//LiCoO2 batteries based on liquid and solid elec-trolytes were also fabricated,exhibiting high flexibility,excellent electrical stability and potential applications in flexible wear-able electronics.
electrosprayingSi/SiOx/CSn/Clithium-ion batteries
Di Chen、Rui Li、Chunxue Liu、Kai Jiang
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School of Integrated Circuits and Electronics,Beijing Institute of Technology,Beijing 100081,China
College of Physics and Mathematics,University of Science and Technology,Beijing 100083,China
Falculty of Hepato-Pancreato-Biliary Surgery,Chinese PLA General Hospital,Institute of Hepatobiliary Surgery of Chinese PLA&Key Labora-tory of Digital Hepetobiliary Surgery,Chinese PLA,Beijing 100853,China
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