Synthesis and Characterization of LiFePO-PANI Hybrid Material as Cathode for Lithium-Ion Batteries.

This work focuses on the synthesis of LiFePO-PANI hybrid materials and studies their electrochemical properties (capacity, cyclability and rate capability) for use in lithium ion batteries. PANI synthesis and optimization was carried out by chemical oxidation (self-assembly process), using ammonium persulfate (APS) and HPO, obtaining a material with a high degree of crystallinity. For the synthesis of the LiFePO-PANI hybrid, a thermal treatment of LiFePO particles was carried out in a furnace with polyaniline (PANI) and lithium acetate (AcOLi)-coated particles, using Ar/H atmosphere.

Crystal structure and Hirshfeld surface analysis of poly[tris-(μ-benzene-1,4-di-carboxyl-ato)tetra-kis-(di-methyl-formamide)-trinickel(II)]: a two-dimensional coordination network.

The crystal structure of the title compound, [Ni(CHO)(CHNO)], is a two-dimensional coordination network formed by trinuclear linear Ni(tp)(DMF) units (tp = terephthalate = benzene-1,4-di-carboxyl-ate and DMF = di-methyl-formamide) displaying a characteristic coordination mode of acetate groups in polynuclear metal-organic compounds. Individual trinuclear units are connected through tp anions in a triangular network that forms layers. One of the DMF ligands points outwards and provides inter-actions with equivalent planes above and below, leaving the second ligand in a structural void much larger than the DMF mol-ecule, which shows positional disorder.