K Kaprans

Institute of Solid State Physics, University of Latvia, Riga, Latvia

Synergistic Behaviour of TiO2/?-Fe2O3/CNTf Ternary Nanocomposite as Anode for Lithium-Ion Battery

---

Biography

Researcher in the Laboratory of Materials for Energy Harvesting and Storage, the Institute of Solid State Physics, University of Latvia (ISSP UL), and has been a is part of the scientific staff of ISSP since 2014. The main research areas are thin film electrodes for lithium - ion batteries and synthesis of new composite materials for renewable energy sources. He has participated in various local projects related to material science; and is an author of 7 scientific publications. The fields of specialization include nanomaterials physics, material science, solid state ionics, methods for electrochemical investigation, materials for energy storage.

Abstract

Lithium-ion batteries (LJBs) as one of the most important energy storage devices, have attracted large attention due to their advantages of high energy density, long cycle life and rate capability. However, the practical application of LIBs is still restricted, especially in electrical devices and hybrid electric vehicles. Electrode materials are key factors to affect the battery performance as energy storages device [1].

In this research hematite phase iron oxide, anatase phase titanium dioxide and functionalized carbon nanotubes composite (CNTf) used as LIBs anode. Iron oxide has high gravimetric capacity, titanium dioxide has exellent chemical stability and (CNTf) work as a good electrone conductive network. Different quantitative content of transition metal oxide in the electrode films are investigated. To estimate battery performance: cyclability, rate capability, cyclic voltammetry and electrical impedance spectroscopy are used. Results obtained in this research can be useful for future investigations of ternary electrode material for energy storage devices.

The financial support of Strengthening of the capacity of doctoral studies at the University of Latvia within the framework of the new doctoral model”, identification No. 8.2.2.0/20/I/006 is greatly acknowledged.