Huang S.-S.Tung M.T.Huynh C.D.Hwang B.-J.Bieker P.M.Fang C.-C.Wu N.-L.2019-05-172019-05-17201921680485https://scholars.lib.ntu.edu.tw/handle/123456789/409024High-capacity and cycle-stable SiO x /C composite anodes for Li-ion batteries (LIBs) were synthesized from rice husk (RH) using an ecofriendly, one-step pyrolysis process that takes full advantage of both the silica and organic components of RH. The process-property-performance relationship for this process was investigated. Pyrolysis of RH at a sufficiently high temperature (1000 ¢XC) results in a C scaffold with a low surface area, high electronic conductivity, and embedded SiO x nanoparticles that are highly active toward lithiation, enabling high rate capability along with outstanding cycle stability for LIB applications. A SiO x /C anode delivering a specific capacity of 654 mAh g -1 and retaining 88% capacity (99.8% CE) after 1000 cycles was demonstrated. Higher capacities, up to 920 mAh g -1 , can be achieved by adding a Si-containing polymer coating on RH prior to pyrolysis. The SiO x /C anodes demonstrated considerable promise for Li metal-free Li-ion sulfur batteries. ? Copyright 2019 American Chemical Society.Li ion sulfur batteriesLi-ion batteriesrecycleRice husksilicon anode[SDGs]SDG7Anodes; Environmental protection; High temperature applications; Ions; Plastic coatings; Pyrolysis; Recycling; Scaffolds; Silica; Silicon batteries; Sulfur; Eco-friendly process; Electrode material; Electronic conductivity; High rate capability; Rice husk; Si-containing polymers; Silicon anode; Specific capacities; Lithium-ion batteriesjournal article10.1021/acssuschemeng.9b000922-s2.0-85064481397https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064481397&doi=10.1021%2facssuschemeng.9b00092&partnerID=40&md5=f067640482da103469828333a0014cd8