Very high power and superior rate capability LiFePO4 nanorods hydrothermally synthesized using tetraglycol as surfactant

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1859-1866 ◽  
Author(s):  
Ruiyuan Tian ◽  
Guangyao Liu ◽  
Haiqiang Liu ◽  
Lina Zhang ◽  
Xiaohua Gu ◽  
...  

Small polarizations, i.e. sufficiently good electronic and ionic conductivity is indispensible for high power lithium iron phosphate, especially for its applications to large current power supplies.

Nano Letters ◽  
2021 ◽  
Author(s):  
Fan Li ◽  
Ran Tao ◽  
Xinyi Tan ◽  
Jinhui Xu ◽  
Dejia Kong ◽  
...  

Energies ◽  
2015 ◽  
Vol 8 (9) ◽  
pp. 10017-10042 ◽  
Author(s):  
Odile Capron ◽  
Ahmadou Samba ◽  
Noshin Omar ◽  
Peter Van Den Bossche ◽  
Joeri Van Mierlo

2013 ◽  
Vol 739 ◽  
pp. 21-25 ◽  
Author(s):  
Xiang Yin Mo ◽  
Xiao San Feng ◽  
Yi Ding ◽  
Cai Rong Kang

Carbon-coated, bismuth-doped, lithium iron phosphates, LiFe1xBixPO4(0x0.05), have been synthesized by a solid-state reaction method. From the optimization, the carbon-coated LiFe0.95Bi0.05PO4phase showed superior performances in terms of phase purity and high discharge capacity. The structural, morphological, and electrochemical properties were studied and compared to carbon-coated, LiFePO4. The Li/LiFe0.95Bi0.05PO4with carbon coating cell delivered an initial discharge capacity of 145 mAh/g and was 30 mAh/g higher than the Li/LiFePO4with carbon coating cell. Cyclic voltammetry revealed excellent reversibility of the LiFe0.95Bi0.05PO4with carbon coating material. High rate capability studies were also performed and showed a capacity retention over 93% during the cycling. It was concluded that substituted Bi ion play an important role in enhancing battery performance of the LiFePO4material through improving the kinetics of the lithium insertion/extraction reaction on the electrode.


2016 ◽  
Vol 191 ◽  
pp. 173-182 ◽  
Author(s):  
Seonbaek Ha ◽  
Vijay K. Ramani ◽  
Wenquan Lu ◽  
Jai Prakash

2011 ◽  
Vol 197-198 ◽  
pp. 1135-1138 ◽  
Author(s):  
Yan Li Ruan

Lithium iron phosphate (LiFePO4) cathode materials containing different low concentration ion dopants (Mg2+, Al3+, Zr4+, and Nb5+) were prepared by a solid-state reaction method in an inert atmosphere. The effects of the doping ions on the properties of as-synthesized cathode materials were investigated. XRD results indicate that the ion dopants do not affect the structure of the materials. The galvanostatically charge and discharge tests show that ion dopants can considerably improve the electrochemical performance of the materials, especially large current discharge behaviors. LiFePO4 samples doped with Nb5+have an initiate capacity of 146.8 mAh•g-1at 0.1C. Further cycle performance measurements reveal the sample doped with Nb5+shows the best cycleability. The results also verify that LiFePO4doped with ions of suited radius and higher valence shows better electrochemical characters.


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