Synthesis and electrochemical properties of submicron LiNi0.5Co0.5O2

Synchrotron X-ray absorption spectroscopy study of the local atomic structures and cation ordering in perovskite- and spinel-type zinc stannate synthesized by co-precipitation method

“…Because of the double oxygen atom bonding with Sn, both the 5s and 5p levels are empty in SnO 2 . The excited electrons from the 1s core level continually transit to the higher unoccupied levels (5s, 5p, 6s and 4f) and reach the final state (5d) as a white line [32,33]. Two kinds of zinc stannate have the same E 0 position (3930.2 eV), close to the energy of reference SnO 2 .…”

Synthesis of porous Li2MnO3-LiNi1/3Co1/3Mn1/3O2 nanoplates via colloidal crystal template

“…30 presence of PMMA templates, which will obviously increase the local heat of the system leading to the formation of oxides particles with more organized microstructure during the sintering process. 32 The irreversible capacity of two samples probably results from the oxygen loss from the structure during first cycling and the electrolyte decomposition when the cells are charged above 4.45 V. 4 The discharge curve of porous Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 is more flattened than that of bulk Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 , which can increase the energy density of the cell. [34][35][36] Figure 5( at all C-rates.…”

A three body problem: a genuine heterotrimetallic molecule vs. a mixture of two parent heterobimetallic molecules

“…700 °C in order to obtain phase-pure materials. 22 , 28 , 30 , 31 , 50 Several “soft chemistry” routes such as sol–gel 51 as well as other multi-source precursor (assisted precipitation) approaches 29 have also been introduced. While in some of those techniques calcination temperatures as low as 500 °C have been attempted, it was found that the phase-pure LiCo 0.5 Ni 0.5 O 2 can only be obtained at 600 °C.…”