Novel synthesis and electrochemical properties of Mn(VO3)2 as a high capacity electrode material in lithium-ions batteries

2010 ◽  
Vol 46 (2) ◽  
pp. 201-205 ◽  
Author(s):  
Long Tan ◽  
Haowen Liu
Keyword(s):  
Electrochemical Properties ◽  
Electrode Material ◽  
High Capacity ◽  
Lithium Ions ◽  
Novel Synthesis

Preparation and Electrochemical Properties of LaMnO3 Powder as a Supercapacitor Electrode Material

2017 ◽  
Vol 727 ◽  
pp. 698-704 ◽  
Author(s):  
Xian Wei Wang ◽  
Xiao Er Wang ◽  
Hui Chao Zhang ◽  
Qian Qian Zhu ◽  
Dong Li Zheng ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Properties ◽  
Electrode Material ◽  
Raw Materials ◽  
Sol Gel ◽  
Galvanostatic Charge ◽  
Supercapacitor Electrode ◽  
Lanthanum Manganate ◽  
Pure Phase ◽  
Charge Discharge

The structural and electrochemical properties of lanthanum manganate (LaMnO3) powder prepared by the sol-gel method are researched in this article. The powder calcined at 600 °C showed amorphous, and the powder calcined at 700-800 °C showed the pure phase of the LaMnO3. The grains with the size of about 80-120 nm were agglomerating together. Cyclic voltammetry and galvanostatic charge-discharge were used to characterize the electrochemical properties in alkaline environment. The electrochemical properties calcined at 700 °C showed a specific capacitance of 73 F/g at the current density of 0.5 A/g. The raw materials for preparing the LaMnO3 powder are cheap, and the operation method is simple.

Structure and Soft-Packed Cell Performance of Nano-Particle LiFePO4 Prepared by Spray-Drying Method

2020 ◽  
Vol 1003 ◽  
pp. 268-274
Author(s):  
Ling Li Zuo ◽  
Lin Chen ◽  
Shuo Yin ◽  
Ji Yun Liu ◽  
Cheng Lu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electrochemical Properties ◽  
Spray Drying ◽  
Diffusion Coefficients ◽  
Rate Capability ◽  
Chemical Diffusion ◽  
Nano Particle ◽  
Drying Method ◽  
Capacity Retention ◽  
Lithium Ions

Well-crystallized and nanosized LiFePO4/C composite have been successfully synthesized by spray-drying under N2 atmosphere. The morphology, physical and electrochemical properties of the LiFePO4/C were tested and analyzed. The charge transfer resistances (Rct) and chemical diffusion coefficients of lithium ions (DLi+) in LiFePO4/C was systematically tested by EIS. The results show that the lithium ions diffusion coefficients obtained from EIS is 1.58×10-14 cm2·s-1. The assembled soft-packed cell with LiFePO4/C show better rate capability and cycling stability. The average capacity retention of LiFePO4/C soft-packed cell decreases to 100%, 98.9%, 96.5%, 92.4%, and 90.3% when current rate increases to 0.3, 0.5, 1, 2, and 3C, respectively. The capacity retention after 80 cycles is retained at more than 99%.

Novel synthesis and electrochemical properties of perovskite-type NaFeF3 for a sodium-ion battery

2012 ◽  
Vol 198 ◽  
pp. 389-392 ◽  
Author(s):  
Ayuko Kitajou ◽  
Hideyuki Komatsu ◽  
Kuniko Chihara ◽  
Irina D. Gocheva ◽  
Shigeto Okada ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Novel Synthesis ◽  
Perovskite Type
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