Comparative study of the implementation of tin and titanium oxide nanoparticles as electrodes materials in Li-ion batteries

Abstract

Transition metal oxides potentially present higher specific capacities than the current anodes based on carbon, providing an increasing energy density as compared to commercial Li-ion batteries. However, many parameters could influence the performance of the batteries, which depend on the processing of the electrode materials leading to different surface properties, sizes or crystalline phases. In this work a comparative study of tin and titanium oxide nanoparticles synthesized by different methods, undoped or Li doped, used as single components or in mixed ratio, or alternatively forming a composite with graphene oxide have been tested demonstrating an enhancement in capacity with Li doping and better cyclability for mixed phases and composite anodes.

Towards Control of the Size, Composition and Surface Area of NiO Nanostructures by Sn Doping

“…Many efforts have been focused so far on the engineering of NiO morphology to provide nanostructures with high porosity and high surface area by doping with different elements [ 11 , 12 , 13 ]. On the other hand, SnO 2 has been considered as a promising candidate in several technological applications, such as solar cells [ 14 ], gas sensing [ 15 ] or Li-ion batteries [ 16 ], among others. The electronic structure, optical properties or vibrational modes of this well-known n-type oxide have been deeply studied over the last few decades, making this material one of the most common dopants in NiO.…”

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO2 Nanoparticles as Anodes in Li-Ion Batteries

“…Diverse materials are being considered as alternative candidates to the graphite-based anodes so far. In this frame, tin oxide has been the focus of ongoing research due to the ability of intercalation lithium and its great electrochemical behavior, being abundant, low-cost, environmentally friendly, and safe during performance. Hence, significant efforts have been made in the optimization of the synthesis methods leading to SnO 2 with controlled dimensions, morphology, and concentration of lithium or other dopants, which are key factors to achieve efficient working devices.…”

Visible-Light-Active Black TiO2 Nanoparticles with Efficient Photocatalytic Performance for Degradation of Pharmaceuticals

“…Because of its tunable bandgap and surface disorder [ 13 ], the presence of point defects such as Ti interstitial, Ti 3+ , surface oxygen vacancies, and the fast electron–hole separation [ 14 ], the black TiO 2 is a more attractive visible light photocatalyst than white TiO 2 . Over the past ten years, it has become attractive for anode applications in electrochemical pollutant degradation from wastewater under sunlight conditions [ 15 ] for solar energy conversion [ 16 ], for cathode applications for lithium–sulfur batteries as the next generation of electrochemical energy storage systems [ 17 , 18 ], and for electron transporter layers in planar perovskite solar cells [ 19 ] and supercapacitors [ 20 ].…”