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Published on: November 11, 2013
Sn-Cu nanocomposite anodes for rechargeable sodium-ion batteries
Yong-Mao Lin1, Paul R Abel, Asha Gupta
1McKetta Department of Chemical Engineering, #Department of Chemistry and Biochemistry, ⊥Center for Electrochemistry, ‡Texas Materials Institute, §Materials Science and Engineering Program, and ||Center for Nano- and Molecular Science, University of Texas at Austin , 1 University Station, C0400 Austin, Texas 78712-0231, United States.
Abstract:
Sn0.9Cu0.1 nanoparticles were synthesized via a surfactant-assisted wet chemistry method, which were then investigated as an anode material for ambient temperature rechargeable sodium ion batteries. The Sn0.9Cu0.1 nanoparticle-based electrodes exhibited a stable capacity of greater than 420 mA h g(-1) at 0.2 C rate, retaining 97% of their maximum observed capacity after 100 cycles of sodium insertion/deinsertion. Their performance is considerably superior to electrodes made with either Sn nanoparticles or Sn microparticles.
