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Surface‐Coverage‐Dependent Cycle Stability of Core‐Shell Nanostructured Electrodes for Use in Lithium Ion Batteries
Author(s) -
Lee Sangkyu,
Ha Jaehwan,
Cheng Huanyu,
Lee Jung Woo,
Jang Tae Sik,
Jung YeonGil,
Huang Yonggang,
Rogers John A.,
Paik Ungyu
Publication year - 2014
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.201300472
Subject(s) - materials science , lithium (medication) , electrode , electrochemistry , shell (structure) , core (optical fiber) , ion , nanotechnology , composite material , chemistry , physics , medicine , quantum mechanics , endocrinology
The relationship between surface coverage of the shell layer in core‐shell nanostructured electrodes and the resulting electrochemical performance of the electrodes is described. Systematic studies and theoretical modeling reveal that partially covered core‐shell nanostructured electrodes are beneficial to release the stress induced by lithiation and delithiation, leading to the excellent cycle performance without any capacity fading up to 50 cycles.