Infrared Spectroscopy of Li2MnSiO4: A cathode material for Li ion batteries

被引：2
|
作者：
Pandey, Mukesh [1 ]
Ramar, Vishwanathan [2 ]
Balaya, Palani [2 ]
Kshirsagar, Rohidas J. [1 ]
机构：
[1] Bhabha Atom Res Ctr, High Pressure & Synchrotron Radiat Phys Div, Bombay 400085, Maharashtra, India
[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore
来源：
PROCEEDINGS OF THE 59TH DAE SOLID STATE PHYSICS SYMPOSIUM 2014 (SOLID STATE PHYSICS) | 2015年 / 1665卷
关键词：
Li-ion batteries; Li2MnSiO4; cathode material; chemical synthesis; infrared spectra; PERFORMANCE; LI2FESIO4;
D O I：
10.1063/1.4918253
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Different polymorphs of Li2MnSiO4 were synthesized by controlled calcination at 500, 750 and 1000 degrees C. XRD studies suggest formation of Pmnb (gamma) -orthorhombic, Pmn2(1) (beta) - orthorhombic and P2(1)/n (gamma) - monoclinic structures at these temperatures. Infrared studies of these polymorphs suggests differences in the arrangement of SiO4, MnO4 and LiO4 units, and the inequivalent sites of Li+ responsible for better electrochemical performance of Pmn2(1).
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页数：3
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