Mixed lithium phosphates as cathode materials for Li-Ion cells

Synthesis and electrochemical properties of Co-doped Li3V2(PO4)3 cathode materials for lithium-ion batteries

“…Co doping has been shown to be favorable in LiNiO 2 [15], LiMnO 2 [16] and other Li-based materials. Although high-level Co doping of LiFePO 4 shows a negative effect on performance [17], low-level Codoped LiFePO 4 shows a detectable enhancement of capacity [17], improved rate performance and cycling stability, which are related to the enhanced electronic conductivity and the mobility of Li + ions [18]. Compared with LiFePO 4 , Li 3 V 2 (PO 4 ) 3 has a more complicated crystal structure, and the doping effect should be more complex and different from that in LiFePO 4 .…”

Optimisation of some parameters for the preparation of nanostructured LifePO4/C cathode

“…Carbonaceous materials, added to the precursors during synthesis, have a fundamental importance in increasing the LiFePO 4 electrochemical performances [2,[7][8][9][10][11][12]. They can promote grain refining, also inhibiting particles aggregation, to act as reducing agents to prevent the formation of trivalent Fe ions during firing and enhance intra-and interparticle conductivity via the formation of a carbon layer.…”

Studies on electrochemical behaviour of zinc-doped LiFePO4 for lithium battery positive electrode

“…One was to synthesize small and monodispersed particles [3][4][5][6][7][8] with electronically conductive coatings [9,10]. The other was to dope with certain elements to improve the conductivity and promote the redox potential [11][12][13][14].…”