Synthesis of porous peanut-like LiNi0.5Mn1.5O4 cathode materials through an ethylene glycol-assisted hydrothermal method using urea as a precipitant

2015 ◽  
Vol 3 (38) ◽  
pp. 19497-19506 ◽  
Author(s):  
Li Wang ◽  
Guijuan Liu ◽  
Wei Wu ◽  
Dan Chen ◽  
Guangchuan Liang

The porous peanut-like LiNi0.5Mn1.5O4 cathode material synthesized by an EG-assisted hydrothermal method exhibits better electrochemical properties. A possible formation mechanism for the Ni0.25Mn0.75CO3 precursor was proposed.

2020 ◽  
Vol 44 (30) ◽  
pp. 12985-12992
Author(s):  
Peng Du ◽  
Kan Mi ◽  
Fangdong Hu ◽  
Xiaolei Jiang ◽  
Debao Wang ◽  
...  

Nanosheet-assembled Na3V2(PO4)2F3 microspheres were synthesized by a one-step polyol-assisted hydrothermal method and combined with graphene as the cathode material for SIBs.


2015 ◽  
Vol 3 (1) ◽  
pp. 404-411 ◽  
Author(s):  
Xuan-Wen Gao ◽  
Yuan-Fu Deng ◽  
David Wexler ◽  
Guo-Hua Chen ◽  
Shu-Lei Chou ◽  
...  

Conductive polypyrrole (PPy)-coated LiNi0.5Mn1.5O4(LNMO) composites are applied as cathode materials in Li-ion batteries, and their electrochemical properties are explored at both room and elevated temperature.


RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 82984-82994 ◽  
Author(s):  
Jennifer Ludwig ◽  
Cyril Marino ◽  
Dominik Haering ◽  
Christoph Stinner ◽  
Dennis Nordlund ◽  
...  

A simple and rapid microwave-assisted solvothermal synthesis delivers hexagonal platelets of LiCoPO4 with tuned crystal orientations and leading-edge electrochemical properties.


RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45351-45358 ◽  
Author(s):  
Xiangjun Li ◽  
Hongxing Xin ◽  
Yongfei Liu ◽  
Di Li ◽  
Xueqin Yuan ◽  
...  

Upon Nb doping, the electrochemical properties of the Li-rich cathode material are significantly enhanced.


2014 ◽  
Vol 24 (3) ◽  
pp. 233
Author(s):  
Ta Anh Tan ◽  
Do Thi Phuong ◽  
Nguyen Thi Tu Oanh ◽  
Do Xuan Mai ◽  
Hoang Vu Chung ◽  
...  

Sodium Manganese Oxide (NaxMnO2) has attracted much attention as cathode materials for alkaline ion battery due to the ability of fast charge and discharge ion Na+, in particular in nanoscale. We report on the synthesis of NaxMnO2 nanowires via hydrothermal synthesis route from Mn2O3 and NaOH solution. The morphological observation indicates that the obtained Na0.44MnO2 nanowires with diameters of about 20-30 nm, length up to several micrometers were formed by this process. The electrochemical properties of fabricated materials were investigated by means of cyclic voltammetry technique and show that Sodium Manganese Oxide (NaxMnO2) is a promising material in the field of research and fabrication alkaline ion battery.


2018 ◽  
Vol 47 (21) ◽  
pp. 7333-7343 ◽  
Author(s):  
Jiangfeng Wang ◽  
Xing Qin ◽  
Jianling Guo ◽  
Mushang Zhou ◽  
Bo Zong ◽  
...  

The U/TM ratio has a significant influence on the phase composition, particle morphology and size of the carbonate precursor, thus leading to different electrochemical properties of the LiNi0.5Mn1.5O4 material.


2012 ◽  
Vol 545 ◽  
pp. 204-208
Author(s):  
Azira Azahidi ◽  
Kelimah Elong ◽  
Nurhanna Badar ◽  
Nurul Atikah Mohd Mokhtar ◽  
Rusdi Roshidah ◽  
...  

LiCoO2is the commercial cathode material for Li-ion battery application with many advantages such as ease of preparation and good electrochemical properties. However, it has some limitations especially Co being expensive and toxic. Therefore, the substitution of Co in the LiCoO2by non-toxic and inexpensive transition metal elements will be an improvement. Partial substitution of Co by Mn has been done in this work via the self-propagating combustion (SPC) method. The materials are then characterized. The materials obtained were phase pure but the electrochemical discharge capacity is about 24 – 27 % less than that of LiCoO2. However, the cycling behaviour of LiCo0.9Mn0.1O2and LiCo0.8Mn0.2O2over 15 cycles improved over that of LiCoO2.


2013 ◽  
Vol 795 ◽  
pp. 245-250 ◽  
Author(s):  
T.Q. Tan ◽  
S.P. Soo ◽  
A. Rahmat ◽  
J.B. Shamsul ◽  
Rozana A.M. Osman ◽  
...  

Nowadays, many researchers have been studying on the layered rock salt-type structure as cathode materials for the lithium ion batteries. LiCoO2is the most commonly used cathode material but Co is costly and toxic. Thus, alternative cathode materials which are cheaper, safer and having higher capacity are required. Replacing Co with Ni offered higher energy density battery but it raised interlayer mixing or cation disorder that impedes electrochemical properties of batteries. This paper has reviewed some recent research works that have been done to produce better and safer cathode materials from the structural perspective.


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