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Fabrication of Si Nanoparticles@Conductive Carbon Framework@Polymer Composite as High‐Areal‐Capacity Anode of Lithium‐Ion Batteries
Author(s) -
Ren WenFeng,
Li JunTao,
Huang ZhiGen,
Deng Li,
Zhou Yao,
Huang Ling,
Sun ShiGang
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201800834
Subject(s) - anode , faraday efficiency , materials science , lithium (medication) , composite number , fabrication , nanoparticle , electrode , nanotechnology , electrical conductor , carbon nanofiber , carbon fibers , nanofiber , chemical engineering , carbon nanotube , composite material , chemistry , medicine , alternative medicine , engineering , pathology , endocrinology
Abstract Low‐cost and scalable processes to fabricate Si‐based anodes with high areal capacity and excellent cycling performance remain a challenge, thereby limiting their widespread application. Herein, we report Si nanoparticles@conductive carbon framework@polymer (Si@C@P) composite electrodes, in which Si nanoparticles are homogeneously immobilized within a three‐dimensional network of conductive carbon nanofibers bound by a high‐viscosity polymer. When used as anodes for lithium‐ion batteries, the obtained Si@C@P composite electrodes deliver an initial coulombic efficiency of 83.5 % and an areal capacity of 2.0 mAh cm −2 (1152 mAh g e l e c t r o d e - 1 ), with a capacity retention about 0.8 mAh cm −2 (466 mAh g e l e c t r o d e - 1 ) after 150 discharge–charge cycles at 0.1 C. This work provides a low‐cost route for the large‐scale manufacture of Si‐based anodes with high areal capacity, which may be very significant for the development of lithium‐ion batteries with high energy density.