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Lithium‐Ion Batteries: Dual‐Functionalized Double Carbon Shells Coated Silicon Nanoparticles for High Performance Lithium‐Ion Batteries (Adv. Mater. 21/2017)
Author(s) -
Chen Shuangqiang,
Shen Laifa,
van Aken Peter A.,
Maier Joachim,
Yu Yan
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201770142
Subject(s) - materials science , lithium (medication) , electrolyte , silicon , ion , nanoarchitectures for lithium ion batteries , nanoparticle , carbon fibers , conductivity , nanotechnology , chemical engineering , diffusion , nanoscopic scale , anode , composite material , electrode , optoelectronics , organic chemistry , composite number , chemistry , medicine , physics , engineering , thermodynamics , endocrinology
In article 1605650 , Yan Yu and co‐workers introduce a “double‐carbon‐shell” concept in lithium‐ion batteries, by which dual functions are performed: confining the volume change of silicon and stabilizing the solid electrolyte interface (SEI). Multi‐point contacts substantially increase the electronic conductivity and decrease the Li + diffusion length to the nanoscale. Such a concept can be applied to synthesize materials with large volume changes in cycles by simultaneously enhancing the electronic conductivity and controlling the SEI growth of lithium‐/sodium‐ion batteries.