Sol–gel synthesis and electrochemical properties of 9LiFePO4·Li3V2(PO4)3/C composite cathode material for lithium ion batteries

2012 ◽  
Vol 74 ◽  
pp. 8-15 ◽  
Author(s):  
Shengkui Zhong ◽  
Ling Wu ◽  
Jiequn Liu
Keyword(s):  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Composite Cathode Material ◽  
Sol Gel Synthesis

Synthesis, Characterization, and Electrochemical Analysis of the Cobalt Free Composite Cathode Material 0.5Li2MnO3-0.25LiMn2O4-0.25LiNi0.5Mn0.5O2 for Lithium Ion Batteries Applications

MRS Advances ◽  
2016 ◽  
Vol 1 (45) ◽  
pp. 3063-3068
Author(s):  
Mónica López de Victoria ◽  
Loraine Torres-Castro ◽  
Rajesh K. Katiyar ◽  
Jifi Shojan ◽  
Valerio Dorvilien ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Sol Gel ◽  
Rate Capability ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Sem Images ◽  
Composite Cathodes ◽  
Composite Cathode Material

ABSTRACTThe inclusion of a spinel structure in the layered-layered composite cathode material is currently explored to enhance the cycling stability and electrochemical properties of lithium ion batteries. Li2MnO3 based composite cathodes are one of the most widely investigated positive electrodes due to their high discharge capacity and rate capability. In our studies, we have synthesized the cobalt-free layered-layered-spinel composite cathode material, 0.5Li2MnO3-0.25LiMn2O4-0.25LiNi0.5Mn0.5O2 (LLNMO), via the sol-gel method. The structure of the composition was characterized using XRD and Raman Spectroscopy in which peaks corresponding to the layered and spinel structures were identified. The morphology along with the elemental analysis were studied with SEM/EDX. The SEM images exhibited agglomerates with particle size in the nano range and the EDX analysis confirmed the presence of manganese, nickel and oxygen in the structure. The electrochemical performance was analyzed by charge/discharge studies (CD) and cyclic voltammetry (CV). The composite cathode material showed high capacity retention and good cycle stability with a coulombic efficiency of 98%. The discussed results demonstrated that LLNMO is a promising cathode material for the next generation of Li-ion batteries.

Composite cathode material β-LiVOPO4/LaPO4 with enhanced electrochemical properties for lithium ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (77) ◽  
pp. 40912-40916 ◽  
Author(s):  
Chao Shen ◽  
Jun-chao Zheng ◽  
Bao Zhang ◽  
Ya-dong Han ◽  
Jia-feng Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Composite Cathode Material

β-LiVOPO4/LaPO4 exhibits much better electrochemical performance than bare β-LiVOPO4.

High performance Li3V2(PO4)3/C composite cathode material for lithium ion batteries studied in pilot scale test

2010 ◽  
Vol 55 (28) ◽  
pp. 8595-8599 ◽  
Author(s):  
Zhenyu Chen ◽  
Changsong Dai ◽  
Gang Wu ◽  
Mark Nelson ◽  
Xinguo Hu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Pilot Scale ◽  
Composite Cathode Material ◽  
Scale Test ◽  
Pilot Scale Test

Sol–gel synthesis and electrochemical properties of c-axis oriented LiCoO2 for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51483-51488 ◽  
Author(s):  
Sen Gao ◽  
Wei Wei ◽  
Maixia Ma ◽  
Juanjuan Qi ◽  
Jie Yang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Axis Orientation ◽  
Sol Gel Synthesis ◽  
The Relationship

This paper expounds upon the relationship between the electrochemical performance and the degree of c-axis orientation of LiCoO2.

Effects of Sintering Temperatures on the Solid-Phase Synthesis of Lithium Vanadium Phosphate for Lithium-Ion Cathode Materials

2013 ◽  
Vol 423-426 ◽  
pp. 541-544 ◽  
Author(s):  
Dao Wu Shuang Shi ◽  
Wei Wang ◽  
Zheng Zhang ◽  
Xing Quan Liu
Keyword(s):  
Cathode Material ◽  
Electrochemical Properties ◽  
Sintering Temperature ◽  
Solid Phase ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Raw Material ◽  
Lithium Vanadium Phosphate ◽  
Composite Cathode Material ◽  
Coated Carbon

Li3V2(PO4)3/C composite cathode material was prepared by carbothermal reduction using LiOHH2O, NH4H2PO4, NH4VO3 as raw material, sucrose as a coated carbon source, respectively. The electrochemical properties of Li3V2(PO4)3/C composite material prepared at different sintering temperature between 750°C and 900°C were investigated. The results demonstrated that by adjusting the sintering temperature, the electrochemical performance of the Li3V2(PO4)3/C material tends to be excellent, and when the temperature reaches 750°C, the Li3V2(PO4)3/C composite cathode material with the best electrochemical properties can be obtained.

A novel sol–gel synthesis route to NaVPO4F as cathode material for hybrid lithium ion batteries

2010 ◽  
Vol 195 (19) ◽  
pp. 6854-6859 ◽  
Author(s):  
Jianqing Zhao ◽  
Jianping He ◽  
Xiaochun Ding ◽  
Jianhua Zhou ◽  
Yi’ou Ma ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Synthesis Route ◽  
Sol Gel Synthesis
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