A series of Nd^3＋-doped LiNdxV2-x（PO4）3（x = 0.00, 0.02, 0.05, 0.08 or 0.1） composites are synthesized by the rheological phase reaction method. The XRD results indicate that Nd3＋ions have been successfully merge...A series of Nd^3＋-doped LiNdxV2-x（PO4）3（x = 0.00, 0.02, 0.05, 0.08 or 0.1） composites are synthesized by the rheological phase reaction method. The XRD results indicate that Nd3＋ions have been successfully merged into a lattice structure. Doped samples show good electrochemical performance in high discharge rate and long cycle. In the potential range of 3.0–4.3 V, Li3Nd0.08V1.92（PO4）3exhibits an initial discharge capacity of 115.8 m Ah/g at 0.2 C and retain 80.86% of capacity retention at 2 C in the 51 st cycle.In addition, Li3Nd0.05V1.95（PO4）3holds at 100.4 m Ah/g after 80 cycles at 0.2 C with a capacity retention of92.4%. Finally, the CV test proves that the potential polarization of Li3Nd0.08V1.92（PO4）3decreased compared with the un-doped one.展开更多
Since the publication of the empirical electron theory by the author in 1978,five groups of scientific workers have applied it:(ⅰ)to the calculation of the cohesive energies of alkaline metals and alkaline earths,(ⅱ...Since the publication of the empirical electron theory by the author in 1978,five groups of scientific workers have applied it:(ⅰ)to the calculation of the cohesive energies of alkaline metals and alkaline earths,(ⅱ)to the analysis of Cooper’s experimental and theoretical values of outer shell electron distributions in CoAl and NiAl.展开更多
基金supported by the National Key Program for Basic Research of China(No.2009CB220100)National High-tech 863Key Program(No.2011AA11A235)Basic Research Fund of Beijing Institute of Technology(No.3100012211111)
文摘A series of Nd^3＋-doped LiNdxV2-x（PO4）3（x = 0.00, 0.02, 0.05, 0.08 or 0.1） composites are synthesized by the rheological phase reaction method. The XRD results indicate that Nd3＋ions have been successfully merged into a lattice structure. Doped samples show good electrochemical performance in high discharge rate and long cycle. In the potential range of 3.0–4.3 V, Li3Nd0.08V1.92（PO4）3exhibits an initial discharge capacity of 115.8 m Ah/g at 0.2 C and retain 80.86% of capacity retention at 2 C in the 51 st cycle.In addition, Li3Nd0.05V1.95（PO4）3holds at 100.4 m Ah/g after 80 cycles at 0.2 C with a capacity retention of92.4%. Finally, the CV test proves that the potential polarization of Li3Nd0.08V1.92（PO4）3decreased compared with the un-doped one.
文摘Since the publication of the empirical electron theory by the author in 1978,five groups of scientific workers have applied it:(ⅰ)to the calculation of the cohesive energies of alkaline metals and alkaline earths,(ⅱ)to the analysis of Cooper’s experimental and theoretical values of outer shell electron distributions in CoAl and NiAl.
