Carbon nanotube-modified LiFePO_4 for high rate lithium ion batteries
碳纳米管复合磷酸铁锂材料的制备及性能
查看参考文献39篇
|
文摘
|
A hybrid cathode material for high rate lithium ion batteries was prepared by ball-milling and spray-drying a slurry containing LiFePO_4 nanoparticles, glucose and carbon nanotubes(CNTs) in water, followed by pyrolysis at 600 ℃ for 6 h under a gas mixture of 5% H_2 in Ar. CNTs with a large aspect ratio form a continuous conductive network connecting the LiFePO_4 nanoparticles and amorphous carbon, which significantly reduces the electrical resistance of the cathode. The hybrid material can deliver a specific capacity of 99 mAh/g at a 50 C charge/discharge rate. An excellent cycling performance was also demonstrated, with a capacity loss of less than 10% after 450 cycles at a 10 C rate. |
|
其他语种文摘
|
结合磷酸铁锂纳米化,并利用碳纳米管良好的导电性和大长径比等优良特性,采用喷雾干燥方法制备出碳纳米管原位复合磷酸铁锂正极材料。碳纳米管在材料合成过程中均匀分散在活性物质中,形成连续贯通的三维导电网络,这种结构可显著提高磷酸铁锂正极材料的电子导电性和锂离子的扩散速率。所得材料具有良好的大电流放电特性,在50 C充放电时,比容量达到99mAh/g;同时该材料也具有优异的循环性能,在10 C大电流充放电的情况下,450次循环后容量保持率仍大于90%。 |
|
来源
|
新型炭材料
,2014,29(4):287-294 【核心库】
|
|
DOI
|
10.1016/s1872-5805(14)60138-4
|
|
关键词
|
LiFePO_4
;
Carbon nanotubes
;
Conductive framework
;
High rate cathode materials
|
|
地址
|
1.
Institute of Metal Research, Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Shenyang, 110004
2.
Council for Scientific and Industrial Research, South Africa, Pretoria
3.
School of Materials and Metallurgy, Northeastern University, Shenyang, 110004
|
|
语种
|
英文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1007-8827 |
|
学科
|
一般工业技术 |
|
基金
|
"Strategic Prioristy Research Program"of the Chinese Acade my of Sciences
;
国家自然科学基金
;
State Key Development Program for Basic Research of China (973)
|
|
文献收藏号
|
CSCD:5230020
|
参考文献 共
39
共2页
|
|
1.
Arnold G. Fine-particle lithium iron phosphate LiFePO_4 synthesized by a new low-cost aqueous precipitation technique.
J Power Sources,2003,119(SI):247-251
|
CSCD被引
80
次
|
|
|
|
|
2.
Delacourt C. Size effects on carbon-free LiFePO_4 powders.
Electrochem Solid St,2006,9(7):A352-A355
|
CSCD被引
61
次
|
|
|
|
|
3.
Gibot P. Room-temperature single-phase Li insertion/extraction in nanoscale Li_((x))FePO_((4)).
Nat Mater,2008,7(9):741-747
|
CSCD被引
35
次
|
|
|
|
|
4.
Kim D H. Synthesis of LiFePO_4 nanoparticles in polyol medium and their electrochemical properties.
Electrochem Solid St,2006,9(9):A439-A442
|
CSCD被引
23
次
|
|
|
|
|
5.
Kim J K. A modified mechanical activation synthesis for carbon-coated LiFePO_4 cathode in lithium batteries.
Mater Lett,2007,61(18):3822-3825
|
CSCD被引
26
次
|
|
|
|
|
6.
Saravanan K. Storage performance of LiFePO_4 nanoplates.
J Mater Chem,2009,19(5):605-610
|
CSCD被引
22
次
|
|
|
|
|
7.
Belharouak I. Synthesis and electrochemical analysis of vapor-deposited carbon-coated LiFePO_4.
Electrochem Commun,2005,7(10):983-988
|
CSCD被引
43
次
|
|
|
|
|
8.
Rogers R E. Impact of microwave synthesis conditions on the rechargeable capacity of LiCoPO_4 for lithium ion batteries.
J Appl Electrochem,2013,43(3):271-278
|
CSCD被引
1
次
|
|
|
|
|
9.
Konarova M. Preparation of carbon coated LiFePO_4 by a combination of spray pyrolysis with planetary ball-milling followed by heat treatment and their electrochemical properties.
Powder Technol,2009,191(1/2):111-116
|
CSCD被引
12
次
|
|
|
|
|
10.
Lu C Z. Study of LiFePO_4 cathode materials coated with high surface area carbon.
J Power Sources,2009,189(1):155-162
|
CSCD被引
20
次
|
|
|
|
|
11.
Shin H C. Electrochemical properties of carbon-coated LiFePO_4 cathode using graphite, carbon black, and acetylene black.
Electrochim Acta,2006,52(4):1472-1476
|
CSCD被引
38
次
|
|
|
|
|
12.
Zaghib K. Surface effects on the physical and electrochemical properties of thin LiFePO_4 particles.
Chem Mater,2008,20(2):462-469
|
CSCD被引
10
次
|
|
|
|
|
13.
Chung S Y. Electronically conductive phospho-olivines as lithium storage electrodes.
Nat Mater,2002,1(2):123-128
|
CSCD被引
409
次
|
|
|
|
|
14.
Islam M S. Atomic-scale investigation of defects, dopants, and lithium transport in the LiFePO_4 olivine-type battery material.
Chem Mater,2005,17(20):5085-5092
|
CSCD被引
76
次
|
|
|
|
|
15.
Herle P S. Nano-network electronic conduction in iron and nickel olivine phosphates.
Nat Mater,2004,3(3):147-152
|
CSCD被引
92
次
|
|
|
|
|
16.
Liu C. Advanced Materials for Energy Storage.
Adv Mater,2010,22(8):E28-E62
|
CSCD被引
234
次
|
|
|
|
|
17.
Lim S Y. Synthesis of nanowire and hollow LiFePO_4 cathodes for high-performance lithium batteries.
Chem Mater,2008,20(14):4560-4564
|
CSCD被引
25
次
|
|
|
|
|
18.
Sides C R. A high-rate, nanocomposite LiFePO_4/carbon cathode.
Electrochem Solid St,2005,8(9):A484-A487
|
CSCD被引
27
次
|
|
|
|
|
19.
Yang J S. Nonaqueous sol-gel synthesis of high-performance LiFePO_4.
Electrochem Solid St,2004,7(12):A515-A518
|
CSCD被引
15
次
|
|
|
|
|
20.
Franger S. Comparison between different LiFePO_4 synthesis routes and their influence on its physico-chemical properties.
J Power Sources,2003,119(2):252-257
|
CSCD被引
74
次
|
|
|
|
|
了解气象卫星更多信息，请访问