Improving the performance of lithium manganese phosphate through divalent cation substitution

被引：90

作者：

Chen, Guoying ^{[1
]}

Wilcox, James D. ^{[2
]}

Richardson, Thomas J. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2008年 / 11卷 / 11期

关键词：

D O I：

10.1149/1.2971169

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Highly crystalline samples of LiMnPO(4) and its analogs with partial substitution of Mn by divalent Mg, Cu, Zn, and Ni were prepared by hydrothermal synthesis and characterized by X-ray diffraction and infrared spectroscopy. Chemical oxidation produced two-phase mixtures of the initial phases LiMn((1-y))M(y)PO(4) and the delithiated forms, Li(y)Mn((1-y))M(y)PO(4), all with the olivine structure. The extent of oxidation depended upon the quantity of oxidizing agent used and on the identity of the substituent ions. Mg, Ni, and Cu were found to increase the level of delithiation relative to that in pure LiMnPO(4). Mg was also shown to reduce the tendency of the oxidized phase to absorb water. (C) 2008 The Electrochemical Society.

引用

页码：A190 / A194

页数：5

共 25 条

[1]

Baker J., 2006, U.S. Patent, Patent No. 7041239

[2] Electron microscopy study of the LiFePO4 to FePO4 phase transition [J].

Chen, GY ;

Song, XY ;

Richardson, TJ .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (06) :A295-A298

[3] The hydrothermal synthesis and characterization of olivines and related compounds for electrochemical applications [J].

Chen, Jiajun ;

Vacchio, Michael J. ;

Wang, Shijun ;

Chernova, Natalya ;

Zavalij, Peter Y. ;

Whittingham, M. Stanley .

SOLID STATE IONICS, 2008, 178 (31-32) :1676-1693

[4] Hydrothermal synthesis of cathode materials [J].

Chen, Jiajun ;

Wang, Shijun ;

Whittingham, M. Stanley .

JOURNAL OF POWER SOURCES, 2007, 174 (02) :442-448

[5] Toward understanding of electrical limitations (electronic, ionic) in LiMPO4 (M = Fe, Mn) electrode materials [J].

Delacourt, C ;

Laffont, L ;

Bouchet, R ;

Wurm, C ;

Leriche, JB ;

Morcrette, M ;

Tarascon, JM ;

Masquelier, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (05) :A913-A921

[6] One-step low-temperature route for the preparation of electrochemically active LiMnPO4 powders [J].

Delacourt, C ;

Poizot, P ;

Morcrette, M ;

Tarascon, JM ;

Masquelier, C .

CHEMISTRY OF MATERIALS, 2004, 16 (01) :93-99

[7] Effect of particle size on LiMnPO4 cathodes [J].

Drezen, Thierry ;

Kwon, Nam-Hee ;

Bowen, Paul ;

Teerlinck, Ivo ;

Isono, Motoshi ;

Exnar, Ivan .

JOURNAL OF POWER SOURCES, 2007, 174 (02) :949-953

[8] Hydrothermal synthesis of electrochemically active LiMnPO4 [J].

Fang, Haisheng ;

Li, Liping ;

Li, Guangshe .

CHEMISTRY LETTERS, 2007, 36 (03) :436-437

[9] REFINEMENT OF THE STRUCTURE OF LIMNPO4 [J].

GELLER, S ;

DURAND, JL .

ACTA CRYSTALLOGRAPHICA, 1960, 13 (04) :325-331

[10] Synthesis of lithium manganese phosphate nanoparticle and its properties [J].

Kim, T. R. ;

Kim, D. H. ;

Ryu, H. W. ;

Moon, J. H. ;

Lee, J. H. ;

Boo, S. ;

Kim, J. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2007, 68 (5-6) :1203-1206

← 1 2 3 →