Freeze-drying synthesis of Li3V2(PO4)3/C cathode material for lithium-ion batteries

Li3V2(PO4)3/(SiO2+C) composite with better stability and electrochemical properties for lithium-ion batteries

“…For example ion doping of Ti 4 + , Mg 2 + [9], K + and Sc 2 + [10], Mn 3 + [11,12], Fe 2 + [13], Co 3 + [14], Nb 2 + [15] and Al 3 + [16] in Li 3 V 2 (PO 4 ) 3 had been reported to be effective for improving the electrochemical performance of Li 3 V 2 (PO 4 ) 3 . Carbon coating was another commonly used way [17][18][19][20][21][22][23][24][25] to improve the conductivity and cycle performance of Li 3 V 2 (PO 4 ) 3 material. It was reported by LuLu Zhang [26] that Li 3 V 2 (PO 4 ) 3 /C with SiO 2 coating layer shows better stability than pure Li 3 V 2 (PO 4 ) 3 and Li 3 V 2 (PO 4 ) 3 /C.…”

Lithium vanadium phosphate as cathode material for lithium ion batteries

“…This LVP/C cathode has good cycling stability, including no fading at 10 C after 300 cycles in the potential window of 3.0-4.3 V. Another freeze-drying study on LVP was carried out by Qiao et al (Fig. 17a) [71]. The synthesis procedure is similar, and polystyrene (PS) spheres (Fig.…”

“…Recent results have demonstrated that carbon coating is primarily dependent on the carbon source. Therefore, various carbon sources have been employed for carbon-coated LVP, such as glucose [12,40,85,[107][108][109], sucrose [110][111][112], maltose [113], citric acid [47,[114][115][116], starch [117], carbon black [118], EDTA [119], PS spheres [71,120], β-cyclodextrin [121], carboxy methyl cellulose (CMC) [122], PEG-400 [123], and PEG-10,000 [124], etc.…”

Carbothermal synthesis of LiVPO4F and its structural change in a broad potential range observed by in-situ X-ray diffraction

“…Therefore, it is of great necessity to develop novel cathode materials with high capacity, excellent cycle performance, and long-term cycle ability, stable structure, and outstanding thermal stability. In the past twenty years, considerable studies have been conducted to develop lithium conducting phosphates such as LiFePO 4 [2][3][4], LiMnPO 4 [5,6], Li 3 V 2 (PO 4 ) 3 [7][8][9][10][11], etc. However, low working potential (LiFePO 4 ), unstable charge/discharge platforms (Li 3 V 2 (PO 4 ) 3 ), poor electrochemical activity (LiMnPO 4 ) and poor electronic conductivity (LiFePO 4 , LiMnPO 4 , Li 3 V 2 (PO 4 ) 3 ) make their commercialization become difficult [2][3][4][5][6][7][8][9][10][11].…”