کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1643127 | 1517247 | 2015 | 4 صفحه PDF | دانلود رایگان |
• Bi2WO6/graphene was prepared as a new Li-ion battery anode material by a sol–gel method.
• A reversible charge capacity of 697.1 mA h g−1 at 50 mA g−1 can be obtained for Bi2WO6/graphene.
• The obtained Bi2WO6/graphene also showed excellent cycle stability and superior rate capability.
A Bi2WO6/graphene composite synthesized by sol–gel and sintering processes was investigated as anode material for Li-ion batteries. The morphology and structure of the products were analyzed by SEM, TEM, and XRD. The electrochemical performance of Bi2WO6/graphene composite was investigated by the galvanostatic charge/discharge method, cyclic voltammetry and electrochemical impedance spectroscopy. Results showed that the first cycle of the reversible specific capacity of Bi2WO6/graphene composite reached 697.1 mA h g−1 at 50 mA g−1. Charge/discharge cycling study indicated that the Bi2WO6/graphene composite had excellent cycling stability and superior rate capability.
Journal: Materials Letters - Volume 141, 15 February 2015, Pages 88–91