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Formation of Nanostructured MnO/Co/Solid–Electrolyte Interphase Ternary Composites as a Durable Anode Material for Lithium‐Ion Batteries
Author(s) -
Dang Feng,
Oaki Yuya,
Kokubu Takao,
Hosono Eiji,
Zhou Haoshen,
Imai Hiroaki
Publication year - 2013
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201201109
Subject(s) - anode , materials science , electrolyte , nanoporous , ternary operation , nanocomposite , nanoparticle , lithium (medication) , chemical engineering , electrochemistry , interphase , composite material , electrode , nanotechnology , chemistry , medicine , endocrinology , biology , computer science , engineering , genetics , programming language
Nanoporous MnO frameworks with highly dispersed Co nanoparticles were produced from MnCO 3 precursors prepared in a gel matrix. The MnO frameworks that contain 20 mol % Co exhibited excellent cycle performance as an anode material for Li‐ion batteries. The solid–electrolyte interphase (SEI) formed in the frameworks through the electrochemical reaction mediates the active materials, such as MnO, Mn, and Li 2 O, during the conversion reaction in the charge–discharge cycle. The Co nanoparticles and SEI provide the electron and Li‐ion conductive networks, respectively. The ternary nanocomposites of the MnO framework, metallic Co nanoparticles, and embedded SEI are categorized as durable anode materials for Li‐ion batteries.