The role of tungsten-related elements for improving the electrochemical performances of cathode materials in lithium ion batteries

Tungsten ◽  
2021 ◽  
Author(s):  
Yong-Qi Sun ◽  
Weng Fu ◽  
Yu-Xiang Hu ◽  
James Vaughan ◽  
Lian-Zhou Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Electrochemical Performances

Surfactants assisted synthesis of nano-LiFePO4/C composite as cathode materials for lithium-ion batteries

2015 ◽  
Vol 3 (5) ◽  
pp. 2025-2035 ◽  
Author(s):  
Qingyu Li ◽  
Fenghua Zheng ◽  
Youguo Huang ◽  
Xiaohui Zhang ◽  
Qiang Wu ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Solid State Reaction ◽  
Lithium Ion ◽  
Solid State Reaction Method ◽  
Electrochemical Performances ◽  
Reaction Method

The solid state reaction method was applied to prepare a series of LiFePO4/C materials by adding various surfactants. The as-prepared LiFePO4/C particles using various surfactants show different electrochemical performances.

scholarly journals Role of polyvinylpyrrolidone in the electrochemical performance of Li2MnO3 cathode for lithium-ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (18) ◽  
pp. 10297-10304 ◽  
Author(s):  
Ji-Eun Lee ◽  
Min-Cheol Kim ◽  
Sang-Hyun Moon ◽  
Eun-Soo Kim ◽  
Yeon-Kyung Shin ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion

The modified OLO cathode materials for improved LIB performance were obtained by heating the as-prepared OLO in the presence of polyvinylpyrrolidone (PVP) under an N2 atmosphere.

Synthesis and Electrochemical Performances of Nanoparticle FePO4 and Ce-Doped FePO4 Cathode Materials for Lithium Ion Batteries by Microemulsion Method

2013 ◽  
Vol 743-744 ◽  
pp. 35-43
Author(s):  
Shi Ming Zhang ◽  
Jun Xi Zhang ◽  
Bo Cheng He ◽  
Suo Jiong Xu ◽  
Xu Ji Yuan
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Specific Capacity ◽  
Great Influence ◽  
Lithium Ion ◽  
Synthesis Temperature ◽  
Microemulsion System ◽  
Electrochemical Performances ◽  
Microemulsion Method

nanosized FePO4 and Fe1-xCexPO4 (x=0.02, 0.04, 0.08) cathode materials were synthesized by microemulsion method. The samples were prepared via a microemulsion system in a H2O/cyclohexane/Triton x-100/n-butyl alcohol at different temperatures (30 , 45 , 50 , 60 ) and then sintered at 380 and 460 for 3 h. The thermal stability, structure and morphology were investigated by means of TG/DCS, X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), and the electrochemical properties were characterized by cyclic voltammetry (CV) and galvanostatic charge and discharge tests. Results show that synthesis temperature has a great influence on the performances of FePO4, and the sample synthesized at 45 shows the best performances with a diameter of about 20 nm and a high discharge initial specific capacity of 142mAh/g and retaining 123mAh/g after 20 cycles at 0.1 C. The Ce-doped FePO4, Fe1-xCexPO4 (x=0.02, 0.04, 0.08), can effectively improve the electrochemical properties of FePO4 cathode materials. The Fe0.96Ce0.04PO4 exhibits an initial discharge capacity of 158.2mAh/g and retains 152mAh/g after 20 cycles at 0.1 C. Hence, Fe0.96Ce0.04PO4 is a promising candidate for cathode materials of lithium ion batteries.

Unique synthesis of sandwiched graphene@(Li0.893Fe0.036)Co(PO4) nanoparticles as high-performance cathode materials for lithium-ion batteries

2015 ◽  
Vol 3 (23) ◽  
pp. 12320-12327 ◽  
Author(s):  
Li Liu ◽  
Huijuan Zhang ◽  
Xi Chen ◽  
Ling Fang ◽  
Yuanjuan Bai ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Electrochemical Performances

Herein, the unique two-layered sandwiched graphene@(Li0.893Fe0.036)Co(PO4) nanoparticles, which presents outstanding electrochemical performances, have been successfully fabricated through the template-sacrificial method.

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