Shieh, D.T.D.T.ShiehYang, M.H.M.H.YangGuo, Z.Z.Z.Z.GuoHsieh, P.S.P.S.HsiehTsao, S.S.TsaoLin, M.W.M.W.LinLiu, W.R.W.R.LiuWu, N.L.N.L.WuNAE-LIH WU2020-01-062020-01-062007https://scholars.lib.ntu.edu.tw/handle/123456789/445657In this study, an inactive material (Ni) is introduced into Si for buffering the volume change causing by the lithium insertion and de-insertion. A porous structure is designed for further reducing of the volume change. The surface-porous structure SiNi powder is prepared by gas atomization method and wet-etching in an acidic solution, which shows positive effects on cycle performance, high capacity and the efficiency at the first cycle. Coated a carbon layer onto SiNi powders by CVD process can further improve the cycle performance by preventing structure collapse. copyright The Electrochemical Society.[SDGs]SDG7Ions; Nickel compounds; Porosity; Silicon; Silicon compounds; Wet etching; Acidic solutions; Cycle performance; Gas atomization method; High capacity; Lithium insertion; Porous structures; Structure effect; Volume change; Lithium-ion batteriesconference paper10.1149/1.27935732-s2.0-45749095404https://www.scopus.com/inward/record.uri?eid=2-s2.0-45749095404&doi=10.1149%2f1.2793573&partnerID=40&md5=9ce6a767961ca5464db6c25c2570818c