Li3V2(PO4)3/graphene nanocomposite as a high performance cathode material for lithium ion battery

In-situ synthesis of reduced graphene oxide modified lithium vanadium phosphate for high-rate lithium-ion batteries via microwave irradiation

“…For the pristine Li 3 V 2 (PO 4 ) 3 , the discharge specific capacity fades down to 135.7 mAh g -1 after 100 cycles with capacity retention of 87.5%. On the contrary, the Li 3 V 2 (PO 4 ) 3 /RGO composite shows higher discharge capacity and better cyclic ability due to the added conductive RGO nanosheets, which is consistent with the related reports [40,44].…”

“…According to Fig. 9, the charge-transfer resistance of Li 3 V 2 (PO 4 ) 3 can be greatly decreased after RGO nanosheets incorporation, which agrees well with the previous reports [39,40]. The results reveal that the interfacial performance of Li 3 V 2 (PO 4 ) 3 electrode is stabilized by the added RGO nanosheets.…”

“…1. As far as we know, such an excellent cycling performance for Li 3 V 2 (PO 4 ) 3 /RGO is seldom in the previously reported results[40,44,45].…”

“…In 2011, Liu et al [38] firstly reported the preparation of Li 3 V 2 (PO 4 ) 3 /graphene nanocomposite via a solution-based process combined with high temperature reaction. More recently, the graphene-modified Li 3 V 2 (PO 4 ) 3 nanocomposite has been successfully synthesized by a simple and cost-effective polyol-based solvothermal method [40], and the obtained sample delivers high reversible lithium storage capacity (189.8 mAh g -1 at 0.1 C), better C-rate capacity and superior cycling stability. Obviously, graphene modified materials with enhanced performance are investigated and applied in lithium-ion batteries.…”

“…One of the most important applications of graphene is its use in anodes and cathodes for lithium-ion batteries [34][35][36][37][38][39][40]. The graphene has been used to modify electrochemical performance of Li 3 V 2 (PO 4 ) 3 electrode.…”