Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

Abstract Nickel aluminum layered double hydroxide (NiAl LDH) with nitrate in its interlayer is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 vs. Li + /Li) binder on performance 1 M LiPF 6 EC/DMC Li. NiAl LDH based sodium alginate (SA) shows high initial discharge specific capacity 2586 mAh g −1 at 0.05 A good stability /Li, which better than what obtained polyvinylidene difluoride (PVDF)-based electrode. SA shows, after 400 cycles 0.5 , cycling retention 42.2% 697 current density 1.0 27.6% 388 over 1400 cycles. In same conditions, PVDF-based retains only 15.6% 182 8.5% 121 respectively. Ex situ X-ray photoelectron spectroscopy (XPS) ex absorption (XAS) reveal conversion reaction mechanism during insertion into material. diffraction (XRD) XPS have been combined electrochemical study to understand different cutoff potentials Li-ion storage mechanism. Graphical abstract as-prepared NiAl-NO 3 − -LDH rhombohedral R-3 m space group material’s This work highlights possibility direct application materials electrodes LIBs.