Hierarchically porous nitrogen-rich carbon derived from wheat straw as an ultra-high-rate anode for lithium ion batteries

被引:225
作者
Chen, Li [1 ]
Zhang, Yongzhi [2 ]
Lin, Chaohong [3 ]
Yang, Wen [3 ]
Meng, Yan [3 ]
Guo, Yong [1 ]
Li, Menglong [1 ]
Xiao, Dan [1 ,2 ]
机构
[1] Sichuan Univ, Coll Chem, Chengdu 610064, Peoples R China
[2] Sichuan Univ, Inst New Energy & Low Carbon Technol, Chengdu 610065, Peoples R China
[3] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Peoples R China
关键词
CAPACITIVE ENERGY-STORAGE; HYDROTHERMAL CARBONIZATION; LIGNOCELLULOSIC BIOMASS; GRAPHENE NANOSHEETS; MESOPOROUS CARBON; RATE CAPABILITY; PERFORMANCE; SUPERCAPACITORS; INSERTION; GRAPHITE;
D O I
10.1039/c4ta00501e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A facile, economical and effective method to produce hierarchically porous nitrogen-rich carbon (HPNC) from wheat straw has been reported. Acid pretreatment is introduced before KOH activation, and plays the role of promoting the formation of thinner pore walls. Without any N-doping, the N content is as high as 5.13%. The HPNC when used as an anode for Li-ion batteries exhibits a superior specific capacity of 1470 mA h g(-1) at 0.037 A g(-1), and possesses an ultrahigh rate capability of 344 mA h g(-1) at 18.5 A g(-1). Even at an extremely high current density of 37 A g(-1), the reversible capacity is still as high as 198 mA h g(-1).
引用
收藏
页码:9684 / 9690
页数:7
相关论文
共 49 条
[1]   Building better batteries [J].
Armand, M. ;
Tarascon, J. -M. .
NATURE, 2008, 451 (7179) :652-657
[2]   Improving the Performance of Biomass-Derived Carbons in Li-Ion Batteries by Controlling the Lithium Insertion Process [J].
Arrebola, J. C. ;
Caballero, A. ;
Hernan, L. ;
Morales, J. ;
Olivares-Martin, M. ;
Gomez-Serrano, V. .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (07) :A791-A797
[3]   Nanomaterials for rechargeable lithium batteries [J].
Bruce, Peter G. ;
Scrosati, Bruno ;
Tarascon, Jean-Marie .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) :2930-2946
[4]   Limitations of Disordered Carbons Obtained from Biomass as Anodes for Real Lithium-Ion Batteries [J].
Caballero, Alvaro ;
Hernan, Lourdes ;
Morales, Julian .
CHEMSUSCHEM, 2011, 4 (05) :658-663
[5]   MECHANISMS FOR LITHIUM INSERTION IN CARBONACEOUS MATERIALS [J].
DAHN, JR ;
ZHENG, T ;
LIU, YH ;
XUE, JS .
SCIENCE, 1995, 270 (5236) :590-593
[6]   Interpretation of Raman spectra of disordered and amorphous carbon [J].
Ferrari, AC ;
Robertson, J .
PHYSICAL REVIEW B, 2000, 61 (20) :14095-14107
[7]   High-capacity disordered carbons derived from peanut shells as lithium-intercalating anode materials [J].
Fey, GTK ;
Lee, DC ;
Lin, YY ;
Kumar, TP .
SYNTHETIC METALS, 2003, 139 (01) :71-80
[8]   High-capacity carbons for lithium-ion batteries prepared from rice husk [J].
Fey, GTK ;
Chen, CL .
JOURNAL OF POWER SOURCES, 2001, 97-8 :47-51
[9]   Carbon materials for lithium-ion rechargeable batteries [J].
Flandrois, S ;
Simon, B .
CARBON, 1999, 37 (02) :165-180
[10]   Pretreatments to enhance the digestibility of lignocellulosic biomass [J].
Hendriks, A. T. W. M. ;
Zeeman, G. .
BIORESOURCE TECHNOLOGY, 2009, 100 (01) :10-18