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Ni 12 P 5 Nanoparticles Hinged by Carbon Nanotubes as 3D Mesoporous Anodes for Lithium‐Ion Batteries
Author(s) -
Wang Bei,
Ru Qiang,
Su Chiquan,
Cheng Shikun,
Liu Peng,
Guo Qing,
Hou Xianhua,
Su Shichen,
Ling Francis ChiChung
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.201800223
Subject(s) - anode , materials science , mesoporous material , lithium (medication) , current density , nanoparticle , hydrothermal circulation , electrochemistry , chemical engineering , carbon nanotube , electrical conductor , ion , nanotechnology , carbon fibers , electrode , composite number , composite material , catalysis , chemistry , organic chemistry , medicine , physics , quantum mechanics , engineering , endocrinology
Abstract A unique 3D mesoporous interconnected Ni 12 P 5 /CNTs hybrid was constructed by a facile one‐step hydrothermal method and investigated as anode toward lithium‐ion batteries. The results show that Ni 12 P 5 nanoparticles are well hinged by the flexible CNTs, forming a hierarchically integrated structure. The system delivers an initial discharge capacity of 1108 mAh g −1 and a high reversible discharge capacity of 676 mAh g −1 after 120 cycles at 200 mA g −1 . Furthermore, the hybrid also achieved long‐term cycling stability and good rate capability, such as 584 mAh g −1 at a current density of 400 mA g −1 after 240 cycles and 245 mAh g −1 at a rate current density of 3200 mA g −1 . The enhanced electrochemical performance could be attributed to the synergistic effect of increased specific surface area, mesoporous structures, and 3D interconnected conductive network