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Surface and Interface Engineering of Silicon‐Based Anode Materials for Lithium‐Ion Batteries
Author(s) -
Luo Wei,
Chen Xinqi,
Xia Yuan,
Chen Miao,
Wang Lianjun,
Wang Qingqing,
Li Wei,
Yang Jianping
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201701083
Subject(s) - anode , materials science , silicon , lithium (medication) , nanotechnology , electrochemistry , coating , engineering physics , ion , battery (electricity) , surface modification , chemical engineering , electrode , optoelectronics , chemistry , quantum mechanics , engineering , endocrinology , power (physics) , medicine , physics
Silicon is one of the most promising anode materials for lithium‐ion batteries because of the highest known theoretical capacity and abundance in the earth' crust. Unfortunately, significant “breathing effect” during insertion/deinsertion of lithium in the continuous charge‐discharge processes causes the seriously structural degradation, thus losing specific capacity and increasing battery impedance. To overcome the resultant rapid capacity decay, significant achievements has been made in developing various nanostructures and surface coating approaches in terms of the improvement of structural stability and realizing the long cycle times. Here, the recent progress in surface and interface engineering of silicon‐based anode materials such as core‐shell, yolk‐shell, sandwiched structures and their applications in lithium‐ion batteries are reviewed. Some feasible strategies for the structural design and boosting the electrochemical performance are highlighted. Future research directions in the field of silicon‐based anode materials for next‐generation lithium‐ion batteries are summarized.