The effects of calcination temperature on the electrochemical performance of LiMnPO4 prepared by ultrasonic spray pyrolysis

被引：53

作者：

Oh, Seung-Min ^{[1
]}

Oh, Sung Woo ^{[1
]}

Myung, Seung-Taek ^{[2
]}

Lee, Sung-Man ^{[3
]}

Sun, Yang-Kook ^{[1
]}

机构：

[1] Hanyang Univ, Dept Energy Engn, Seoul 133791, South Korea

[2] Iwate Univ, Dept Chem Engn, Morioka, Iwate 0208551, Japan

[3] Kangwon Natl Univ, Dept Adv Mat Sci & Engn, Chunchon 200701, Kangwon, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 506卷 / 01期

关键词：

Coating materials; Nano-structured materials; X-ray diffraction; Transmission electron microscopy; Scanning electron microscopy; PHOSPHO-OLIVINES; LITHIUM; IRON;

D O I：

10.1016/j.jallcom.2010.07.010

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：

Carbon-coated LiMnPO4 powders were prepared by ultrasonic spray pyrolysis. The effects of calcination temperature on the microstructure and electrochemical performance of C-LiMnPO4 were investigated. X-ray diffraction (XRD) studies showed that the crystallite size varied with calcination temperature. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations revealed that the calcination temperature had a strong influence on the morphology of the prepared final powder, and therefore the subsequent electrochemical performance of the material. The C-LiMnPO4 powders prepared at 650 degrees C exhibited excellent electrochemical performance with a discharge capacity of 118 mAh g(-1). (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：372 / 376

页数：5

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