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Fabrication of Porous Nitrogen‐Doped Carbon Materials as Anodes for High‐Performance Lithium Ion Batteries
Author(s) -
Ou Junke,
Yang Lin,
Zhang Yongzhi,
Chen Li,
Guo Yong,
Xiao Dan
Publication year - 2015
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201500519
Subject(s) - anode , chemistry , lithium (medication) , carbon fibers , microporous material , nitrogen , graphite , chemical engineering , fabrication , porosity , inorganic chemistry , nanotechnology , organic chemistry , materials science , electrode , composite material , composite number , medicine , alternative medicine , pathology , engineering , endocrinology
The hierarchical porous nitrogen‐doped carbon materials (HNCs) were prepared by using nitrogen containing gelatin as the carbon source and nano‐silica obtained by a simple flame synthesis approach as the template. All of the as‐obtained HNCs show much higher Li storage capacity as compared with commercial graphite. Specifically, HNC‐700 with biggest micropore volume and highest nitrogen content exhibited optimal reversible capacities of 1084 mAh·g −−1 at the current density of 37.2 mA·g −1 (0.1 C) and 309 mAh·g −1 even at 3.72 A·g −1 (10 C). This result suggests that HNCs should be a promising candidate for anode materials in high‐rate lithium ion batteries (LIBs).