Synthesis and Electrochemical Properties of Cathode Material LiNi0.8Co0.1Mn0.1O2 via Li, Mg, Al Dopping

2014 ◽  
Vol 1058 ◽  
pp. 302-306 ◽  
Author(s):  
Sha Yuan ◽  
Liang Bin Liu ◽  
Yan Ping Tang ◽  
Jian Hua Wang ◽  
Yu Zhong Guo

Coprecipitation method is adopted to prepare LiNi0.8Co0.1Mn0.1O2, to discuss the factors of affecting electrochemical properties and structure at lithium ion battery cathode material LiNi0.8Co0.1Mn0.1O2. In order to improve the electrochemical properties of materials, LiNi0.8Co0.1Mn0.1O2 materials were modified by doping the cation of Li or Mg or Al. Through the charge-discharge tests in the range of 2.5~4.3V, the result show that doped Mg samples with a discharge capacity and high efficiency as well as the lowest capacity loss, the initial discharge capacity is 205.9mA.h/g, after 20 cycles the discharge capacity reached 142.4mA.h/g.

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38228-38232 ◽  
Author(s):  
Fangxin Mao ◽  
Jing Guo ◽  
Shaohua Zhang ◽  
Fan Yang ◽  
Qiao Sun ◽  
...  

Hierarchical S-doped Bi2Se3 microspheres assembled by stacked nanosheets were successfully synthesized as the anode of a lithium ion battery, which shows an initial discharge capacity of 771.3 mA h g−1 with great potential in energy storage.


2018 ◽  
Vol 47 (35) ◽  
pp. 12337-12344 ◽  
Author(s):  
Xia Wu ◽  
Shi-Xi Zhao ◽  
Lü-Qiang Yu ◽  
Jin-Lin Yang ◽  
Ce-Wen Nan

Sulfur has been successfully employed into Li2MnSiO4 and results in a high initial discharge capacity and excellent cycling stability.


2017 ◽  
Vol 4 (11) ◽  
pp. 1806-1812 ◽  
Author(s):  
Shibing Zheng ◽  
Jinyan Hu ◽  
Weiwei Huang

A novel high-capacity cathode material C4Q/CMK-3 for SIBs shows an initial discharge capacity of 438 mA h g−1 and a capacity retention of 219.2 mA h g−1 after 50 cycles.


2011 ◽  
Vol 485 ◽  
pp. 115-118
Author(s):  
Atsushi Fujita ◽  
Fuminari Isobe ◽  
Takayuki Kodera ◽  
Takashi Ogihara

C/LiMnPO4 materials were synthesized by the complex polymerized method. An orthorhombic olivine type structure was obtained by calcination at temperatures over 973 K under an argon/hydrogen (5%) atmosphere. Differential thermogravimetric analysis showed that the carbon content of C/LiMnPO4 was about 65 wt%. The initial discharge capacity of C/LiMnPO4 calcined at 973 K was 135 mAh/g at 0.1 C and 60 mAh/g at 1 C.


2020 ◽  
Vol 49 (4) ◽  
pp. 1048-1055 ◽  
Author(s):  
Xin Yu ◽  
Fang Hu ◽  
Fuhan Cui ◽  
Jun Zhao ◽  
Chao Guan ◽  
...  

CuV2O6 nanowires as a cathode material for Zn-ion batteries display an initial discharge capacity of 338 mA h g−1 at a current density of 100 mA g−1 and an excellent cycle performance after 1200 cycles at 5 A g−1.


2015 ◽  
Vol 39 (11) ◽  
pp. 8971-8977 ◽  
Author(s):  
Yuanchang Si ◽  
Zhi Su ◽  
Yingbo Wang ◽  
Ting Ma ◽  
Juan Ding

0.8LiFePO4·0.2Li3V2(PO4)3/C composites were synthesized by a new sol–gel method, which delivered an initial discharge capacity of 158.7 mA h g−1 at 0.1C.


2019 ◽  
Author(s):  
Debanjana Pahari ◽  
Sreeraj Puravankara

A novel cathode material with Ti-substitution on Ni site, P2-type Na0.67Ni0.25Ti0.08Mn0.67O2 has been synthesized via solid-state synthesis method and characterized electrochemically. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes have been observed tobe highly reversible at higher voltage ranges. The electrodes have an initial discharge capacity of 125 mAhg-1and can retain around 84% of this capacity (105 mAhg-1) even after 50 cycles at 0.1C when cycled at an uppercut-off voltage of 4.3 V. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes are believed to suppress the irreversible P2-O2 transformation by diverting the charging reaction through a more reversible P2-OP4transition.


CrystEngComm ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 399-402
Author(s):  
Yanli Fu ◽  
Liqiong Wu ◽  
Shengang Xu ◽  
Shaokui Cao ◽  
Xinheng Li

LiNi0.5Mn1.5O4 microcubes grown from nanowires delivered an initial discharge capacity of 123 mAh g−1 at 1C and maintained 95% of the capacity after 50 cycles due to interfacial effect.


2015 ◽  
Vol 3 (15) ◽  
pp. 7870-7876 ◽  
Author(s):  
Xiaoqin Zhao ◽  
Min Liu ◽  
Yong Chen ◽  
Bo Hou ◽  
Na Zhang ◽  
...  

L-Ti3C2 was prepared by exfoliating Ti3AlC2 in 40% HF. With sulfur-loaded L-Ti3C2 as cathodes, Li–S batteries deliver a high initial discharge capacity of 1291 mA h g−1, an excellent capacity retention of 970 mA h g−1 and coulombic efficiency of 99% after 100 cycles.


2014 ◽  
Vol 687-691 ◽  
pp. 4331-4334
Author(s):  
Han Ping Zhu ◽  
Peng Ding ◽  
Song Fang ◽  
Hailin Liu

nanoMn3O4was prepared by a simple solvothermal method. The structure, morphology and electrochemical properties of the products were investigated by XRD, SEM and constant current discharge-charge test. The results of XRD and SEM shows that nanoMn3O4is high-purity, and it’s diameter is about 30 nm. It could deliver an initial discharge capacity of 1324.4 mAh g-1at the current density of 25.5 mA g-1, and the specific discharge capacity is 586.9 mAh g-1after 30 cycles at the current density of 30.4 mA g-1.


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