科研之友
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摘要
Sewage sludge treatment is an annoying issue due to the environmental pollution. We herein demonstrate the effective conversion of sewage sludge to a potential anode material for lithium ion batteries (LIBs) by a simple annealing method combined mechanical milling. The generated silica (SiO2) hybridized with a handful of graphite exhibits good electrochemical performance. Stable reversible capacity of 433 mAh g(-1) is achieved after 100 cycles at 100 mA g(-1) At a high current density of 1000 mA g(-1), the reversible capacity is still stabilizing at 244 mAh g(-1) after 500 cycles, demonstrating the waste sewage sludge is a potential LIBs anode source.
