Hexagonal BC3: A Robust Electrode Material for Li, Na, and K Ion Batteries

Organic negative electrode materials for Li-ion and Na-ion batteries

This thesis work comprises work on novel organic materials for Liand Nabatteries, involving synthesis, characterization and battery fabrication and performance. First, a method for improving the performance of a previously reported Li-ion battery material (lithium benzenediacrylate) is presented. It is demonstrated that applying freeze drying in combination with carbon coating in the liquid sta...

Evaluation of Carbon-Coated Graphite as a Negative Electrode Material for Li-Ion Batteries

Low-cost and environmentally-friendly materials are investigated as carbon-coating precursors to modify the surface of commercial graphite for Li-ion battery anodes. The coating procedure and final carbon content are tuned to study the influence of the precursors on the electrochemical performance of graphite. Thermogravimetric analysis (TGA) and Brunauer– Emmett–Teller (BET) surface area analy...

Electrode Materials for Lithium Ion Batteries: A Review

Electrochemical energy storage systems are categorized into different types, according to their mechanisms, including capacitors, supercapacitors, batteries and fuel cells. All battery systems include some main components: anode, cathode, an aqueous/non-aqueous electrolyte and a membrane that separates anode and cathode while being permeable to ions. Being one of the key parts of any new electr...

Evaluation of nanocrystalline Sn3N4 derived from ammonolysis of Sn(NEt2)4 as a negative electrode material for Li-ion and Na-ion batteries

Bulk nanocrystalline Sn3N4 powders were synthesised by a two step ammonolysis process followed by washing with dilute acid. Their performance as Li-ion and Na-ion battery negative electrodes was assessed by galvanostatic cycling in half cells vs. the metal, giving good performance in both cases and remarkable stability in the sodium cells. The effect of carboxymethyl cellulose and sodium algina...

C/Li2MnSiO4 Nanocomposite Cathode Material for Li-Ion Batteries