Electrochemical performance of nanocrystalline LiMPO4 thin-films prepared by electrostatic spray deposition

被引：64

作者：

Ma, J ^{[1
]}

Qin, QZ ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Laser Chem Inst, Shanghai 200433, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2005年 / 148卷

基金：

中国国家自然科学基金;

关键词：

electrostatic spray deposition; lithium metal olivine phosphate; thin-film; lithium ion battery;

D O I：

10.1016/j.jpowsour.2005.01.041

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：

LiMPO4 (M = Mn, Fe) and LiMn0.4Fe0.6PO4 thin-films have been fabricated by electrostatic spray deposition (ESD) combined with sol-gel method, in which P2O5 was used as a phosphorous resource in Li-M-P-O alcohol precursor solution. Analyses of LiMPO4 solid films using X-ray diffractometry (XRD) and scanning electron microscopy (SEM) demonstrated the formation of an olivine phase of space group Pmnb with nanocrystalline morphology. The prepared LiMPO4 films were evaluated electrochemically by cyclic-voltammetry and charge/discharge measurements. The results showed that thin-film electrode of LiMn0.4Fe0.6PO4 exhibited better electrochemical performance than that of pure LiFePO4 and LiMnPO4. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：66 / 71

页数：6

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