Open AccessCarbonized-leaf Membrane with Anisotropic Surfaces for Sodium-ion Battery
Author(s) -
Hongbian Li,
Fei Shen,
Wei Luo,
Jiaqi Dai,
Xiaogang Han,
Yanan Chen,
Yonggang Yao,
Hongli Zhu,
Kun Fu,
Emily Hitz,
Liangbing Hu
Publication year - 2016
Publication title -
acs applied materials and interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.535
H-Index - 228
eISSN - 1944-8252
pISSN - 1944-8244
DOI - 10.1021/acsami.5b10875
Subject(s) - materials science , carbonization , faraday efficiency , anode , membrane , porosity , sodium , pyrolysis , carbon fibers , current collector , chemical engineering , battery (electricity) , sodium ion battery , ion , composite material , electrolyte , electrode , organic chemistry , composite number , chemistry , scanning electron microscope , biochemistry , power (physics) , physics , quantum mechanics , metallurgy , engineering
A simple one-step thermal pyrolysis route has been developed to prepare carbon membrane from a natural leaf. The carbonized leaf membrane possesses anisotropic surfaces and internal hierarchical porosity, exhibiting a high specific capacity of 360 mAh/g and a high initial Coulombic efficiency of 74.8% as a binder-free, current-collector-free anode for rechargeable sodium ion batteries. Moreover, large-area carbon membranes with low contact resistance are fabricated by simply stacking and carbonizing leaves, a promising strategy toward large-scale sodium-ion battery developments.
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