Electrochemical performance of LiFe1−xVxPO4/carbon composites prepared by solid-state reaction

Structural properties of composite cathode material LiFePO4–Li3V2(PO4)3

“…Many methods such as metal doping [7][8][9], coating with electronically conductive materials like carbon, metal, and metal oxide [10][11][12], and synthesize nanoparticles [13,14] have been used to improve the performance of LiFePO 4 and Li 3 V 2 (PO 4 ) 3 , but all these methods have many drawbacks. Composite cathode material LiFePO 4 -Li 3 V 2 (PO 4 ) 3 is a kind of material showing characteristics of both LiFePO 4 and Li 3 V 2 (PO 4 ) 3 .…”

Effect of Mn substitution on the structural, morphological and electrochemical behaviors of Li2Fe1−xMnxSiO4 synthesized via citric acid assisted sol–gel method

“…Various doping elements such as Ru 4+ [10], V 3+ [11], Zn 2+ [12] and Cu 2+ [13] have been tried to improve the property of LiFePO 4 . For orthosilicate materials, Li 2 MnSiO 4 is isostructural with Li 2 FeSiO 4 , and it has a high theoretical capacity of 333 mAh g −1 on the basis of Mn 3+ /Mn 2+ and Mn 4+ /Mn 3+ redox couples [14].…”

Influence of AlF3 coating on the electrochemical properties of LiFePO4/graphite Li-ion batteries

“…This is mainly attributed to its intrinsic low electronic conductivity (∼10 −9 S cm −1 at room temperature [11]) and small Li-ion diffusivity which control the transfer of Li + ions across the LiFePO 4 /FePO 4 interface upon lithium insertion/desertion [12,13]. Such drawback is being overcome by three main approaches, including coatings (such as carbon coating [8][9][10][14][15][16][17][18], ZrO 2 coating [19], TiO 2 coating [20]), heterogeneous doping by metallic elements (such as the partial substitution of Mg, Ti, Cu, Zn, Zr and Nb for Li or Fe of LiFePO 4 [11,13,[21][22][23][24][25][26]) and particle size minimization [15,27,28]. The minimization of the particle size shows a very bright prospect on improving the rate performance of LiFePO 4 at room temperature.…”