Premium
Nitrogen‐Doped Porous Carbon Nanofiber Webs as Anodes for Lithium Ion Batteries with a Superhigh Capacity and Rate Capability
Author(s) -
Qie Long,
Chen WeiMin,
Wang ZhaoHui,
Shao QingGuo,
Li Xiang,
Yuan LiXia,
Hu XianLuo,
Zhang WuXing,
Huang YunHui
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201104634
Subject(s) - materials science , carbonization , nanofiber , anode , polypyrrole , carbon nanofiber , carbon fibers , lithium (medication) , nitrogen , porosity , chemical engineering , current density , nanotechnology , carbon nanotube , composite material , electrode , composite number , polymerization , organic chemistry , polymer , scanning electron microscope , medicine , chemistry , physics , quantum mechanics , endocrinology , engineering
Nitrogen‐doped carbon nanofiber webs (CNFWs) with high surface areas are successfully prepared by carbonization‐activation of polypyrrole nanofiber webs with KOH. The as‐obtained CNFWs exhibit a superhigh reversible capacity of 943 mAh g −1 at a current density of 2 A g −1 even after 600 cycles, which is ascribed to the novel porous nanostructure and high‐level nitrogen doping.