Depth-Resolved X-ray Absorption Spectroscopy for all Solid-State Lithium-Ion Battery

2002 ◽  
Vol 5 (1) ◽  
pp. A22 ◽  
Author(s):  
M. Balasubramanian ◽  
H. S. Lee ◽  
X. Sun ◽  
X. Q. Yang ◽  
A. R. Moodenbaugh ◽  
...  

Author(s):  
Adelyna Oktavia ◽  
Kurnia Sembiring ◽  
Slamet Priyono

Hospho-material of olivine, LiMnPO4 identified as promising for cathode material generation next Lithium-ion battery and has been successfully synthesized by solid-state method with Li2Co3, 2MnO2, 2NH4H2PO4 as raw material. The influence of initial concentration of precursors at kalsinasi temperatures (400-800 ° C) flows with nitrogen. The purity and composition phase verified by x-ray diffraction analysis (XRD), scanning electron microscopy (SEM), spectroscopy, energy Dispersive x-ray Analysis (EDS), Raman spectra. General investigation shows that there is a correlation between the concentration of precursors, the temperature and the temperature of sintering kalsinasi that can be exploited to design lithium-ion next generation.


2008 ◽  
Vol 388 ◽  
pp. 41-44 ◽  
Author(s):  
Hiroyuki Kaiya ◽  
Shinya Suzuki ◽  
Masaru Miyayama

Effects of lattice defects on cathode properties of LiMn2O4 synthesized at low temperatures were investigated. LiMn2O4 powders were synthesized by a sol-gel method. The specific capacities of LiMn2O4 decreased from 134 to 81 mAh g-1 with decreasing heating temperature from 750 to 200°C. X-ray absorption spectroscopy showed that a large amount of lattice defects such as cation vacancies existed and cation mixing occurred in LiMn2O4 calcined at low temperatures. It was found that the low specific capacities of LiMn2O4 calcined at low temperatures were attributed to these lattice defects.


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