Three-dimensional lithium manganese phosphate microflowers for lithium-ion battery applications

被引：13

作者：

Kumar, P. Ramesh ^{[1
]}

Venkateswarlu, M. ^{[2
]}

Satyanarayana, N. ^{[1
]}

机构：

[1] Pondicherry Univ, Dept Phys, Pondicherry 605014, India

[2] Amara Raja Batteries, Res & Dev, Tirupati 517501, Andhra Pradesh, India

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2012年 / 42卷 / 03期

关键词：

Li-ion battery; LiMnPO4; microflowers; Discharge capacity; Polyol process; CATHODE MATERIAL; ELECTROCHEMICAL PERFORMANCE; LIMNPO4; LIFEPO4; FE; NI; CO; CONDUCTIVITY; BEHAVIOR; OLIVINES;

D O I：

10.1007/s10800-012-0383-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The Polyvinylpyrrolidone (PVP)-assisted polyol process was employed for the synthesis of lithium manganese phosphate (LiMnPO4) microflowers as a cathode material for Li-ion battery applications. LiMnPO4 microflowers were characterized by X-ray diffraction, scanning electron microscope, transmission electron microscope-energy dispersion spectroscope, and impedance spectroscopy. The microflowers were highly porous with nanosized petals. CR2032 coin cells were fabricated using LiMnPO4 microflowers' sample and their battery characteristics were tested. The discharge capacity of LiMnPO4 microflowers was found to be 164 mAh g(-1) at 0.1C. The observed high discharge capacity was attributed to the short diffusion length of Li-ion motion in the nanopetals of the LiMnPO4 microflowers.

引用

页码：163 / 167

页数：5

共 22 条

[1] Electrochemical performance of nanocomposite LiMnPO4/C cathode materials for lithium batteries [J].

Bakenov, Zhumabay ;

Taniguchi, Izumi .

ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (01) :75-78

[2]

Bard A.J., 2001, ELECTROCHEMICAL METH

[3] Thermal stability and phase transformation of electrochemically charged/discharged LiMnPO4 cathode for Li-ion batteries [J].

Choi, Daiwon ;

Xiao, Jie ;

Choi, Young Joon ;

Hardy, John S. ;

Vijayakumar, M. ;

Bhuvaneswari, M. S. ;

Liu, Jun ;

Xu, Wu ;

Wang, Wei ;

Yang, Zhenguo ;

Graff, Gordon L. ;

Zhang, Ji-Guang .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (11) :4560-4566

[4] Microscale measurements of the electrical conductivity of doped LiFePO4 [J].

Chung, SY ;

Chiang, YM .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (12) :A278-A281

[5] Lithium battery materials LiMPO4 (M = Mn, Fe, Co, and Ni):: Insights into defect association, transport mechanisms, and doping behavior [J].

Fisher, Craig A. J. ;

Prieto, Veluz M. Hart ;

Islam, M. Saiful .

CHEMISTRY OF MATERIALS, 2008, 20 (18) :5907-5915

[6] Electrochemical performance of sol-gel synthesized LiFePO4 in lithium batteries [J].

Hu, YQ ;

Doeff, MM ;

Kostecki, R ;

Fiñones, R .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (08) :A1279-A1285

[7] Electrochemical Performance of LiMnPO4 Synthesized with Off-Stoichiometry [J].

Kang, Byoungwoo ;

Ceder, Gerbrand .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (07) :A808-A811

[8] Carbon Coated LiMnPO4 Nanorods for Lithium Batteries [J].

Kumar, P. Ramesh ;

Venkateswarlu, M. ;

Misra, Manjusri ;

Mohanty, Amar K. ;

Satyanarayana, N. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (03) :A227-A230

[9] LiMnPO4 as the cathode for lithium batteries [J].

Li, GH ;

Azuma, H ;

Tohda, M .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (06) :A135-A137

[10] Particle Size Dependence of the Ionic Diffusivity [J].

Malik, Rahul ;

Burch, Damian ;

Bazant, Martin ;

Ceder, Gerbrand .

NANO LETTERS, 2010, 10 (10) :4123-4127

← 1 2 3 →