Effects of vanadium substitution on the cycling performance of olivine cathode materials

High electronic conductivity in nanostructured materials based on lithium-iron-vanadate-phosphate glasses

“…Chen et al [16] for a series of materials with the nominal compositions LiFe 1 − x V x PO 4 for 0 ≤ x ≤ 0.10 prepared by a sol-gel route. In all the abovementioned cases the Li 3 V 2 (PO 4 ) 3 phase was formed despite a low content of vanadium [12,13,16]. Another possible origin of double peaks of crystallization in DTA curves is the complexity of the crystallization process itself.…”

“…: by tailoring the nanostructured morphology of the final material [9,10] by appropriate doping [11][12][13] and/or by blending intercalation compounds [14]. A few research groups have started to use vanadium oxides as additives to polycrystalline LiFePO 4 with the aim to improve its electrochemical performance in Li-ion batteries [12,15,16].…”

Pilot-scale continuous synthesis of a vanadium-doped LiFePO4/C nanocomposite high-rate cathodes for lithium-ion batteries

“…The literature, however, contains conflicting findings with respect to the synthesis, phase behavior and performance of these materials. Some researchers have found the best performance is observed when vanadium is found exclusively within the olivine structure [11]. This has been attributed to decreased Li + diffusion activation energy barriers and increased electrical conductivity within the material [12].…”

A novel preparation route for multi-doped LiFePO4/C from spent electroless nickel plating solution

“…Tremendous efforts have been made to overcome the inherent limitations of LiFePO 4 , such as carbon coating [2][3][4], particle size reducing [5][6][7], and ion doping. Especially various ion dopings were focused, including single element doping of Mg, Al, Zr, Ni, Co, Mo, Na, Mn, Zn, Nd, Nb, Rh, Cu, V, Ti, Sn, F [8][9][10][11][12][13][14][15][16][17][18][19][20][21], two elements co-doping of Ni-Mn, Mg-Ti, Mg-F, Na-Ti, Na-Cl [22][23][24][25][26], and multi-doping of Zn-Mn-Ca, Mn-V-Cr, Mg-Al-Zn-Mn [27][28][29]. The promoting effect was attributed to the improved intrinsic electronic conductivity and the increased lithium ion diffusion coefficient in doped LiFePO 4 particles.…”