A three-dimensional carbon-coated LiFePO4 electrode for high-power applications

被引:22
作者
Arbizzani, Catia [1 ]
Beninati, Sabina [1 ]
Mastragostino, Marina [1 ]
机构
[1] Univ Bologna, Dept Met Sci Electrochem & Chem Tech, I-40127 Bologna, Italy
关键词
Lithium iron phosphate; Lithium-ion batteries; Three-dimensional electrode; Maximum specific pulse-power; LITHIUM; CATHODE;
D O I
10.1007/s10800-009-9956-5
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
070208 [无线电物理];
摘要
The fabrication process of a new, three-dimensional carbon-coated LiFePO4 electrode by sol-gel synthesis in situ on interconnected conducting fibers of carbon paper is described. This three-dimensional structure ensures overall electrode conductivity, facilitates lithium diffusion in and out of LiFePO4 particles and, hence, enables good cycling stability at 1C-rate and maximum pulse-power values that exceed those of planar LiFePO4 electrodes at high electrode loading.
引用
收藏
页码:7 / 11
页数:5
相关论文
共 11 条
[1]
Synthesis and electrochemical analysis of vapor-deposited carbon-coated LiFePO4 [J].
Belharouak, I ;
Johnson, C ;
Amine, K .
ELECTROCHEMISTRY COMMUNICATIONS, 2005, 7 (10) :983-988
[2]
BHUNANESWARI MS, 2008, J POWER SOURCES, V180, P553
[3]
CHAN K, 2007, Patent No. 2007022435
[4]
Electronically conductive phospho-olivines as lithium storage electrodes [J].
Chung, SY ;
Bloking, JT ;
Chiang, YM .
NATURE MATERIALS, 2002, 1 (02) :123-128
[5]
ARC studies of the thermal stability of three different cathode materials:: LiCoO2; Li[Ni0.1Co0.8Mn0.1]O2; and LiFePO4, in LiPF6 and LiBoB EC/DEC electrolytes [J].
Jiang, J ;
Dahn, JR .
ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (01) :39-43
[6]
A novel network composite cathode of LiFePO4/multiwalled carbon nanotubes with high rate capability for lithium ion batteries [J].
Li, Xinlu ;
Kang, Feiyu ;
Bai, Xinde ;
Shen, Wanci .
ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (04) :663-666
[7]
Electroactivity of natural and synthetic triphylite [J].
Ravet, N ;
Chouinard, Y ;
Magnan, JF ;
Besner, S ;
Gauthier, M ;
Armand, M .
JOURNAL OF POWER SOURCES, 2001, 97-8 :503-507
[8]
Modeling the performance of lithium-ion batteries and capacitors during hybrid-electric-vehicle operation [J].
Stewart, Sarah G. ;
Srinivasan, Venkat ;
Newman, John .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (09) :A664-A671
[9]
Performance of carbon-fiber-containing LiFePO4 cathodes for high-power applications [J].
Thorat, Indrajeet V. ;
Mathur, Vipul ;
Harb, John N. ;
Wheeler, Dean R. .
JOURNAL OF POWER SOURCES, 2006, 162 (01) :673-678
[10]
WOHLFARHTMEHREN.M, 2007, ROUTES IMPROVE LITHI, P337