Cobalt-Lithium-Oxygen

Andy Watson, Keke Chang, Siaufung Dang, Petronela Gotcu-Freis, Alexandra Khvan, Torsten Markus, Elke Schuster, Marc Strafela

Introduction

Li-ion batteries have long been recognized as an efficient way to store electrical energy. Lithium-transition metal oxides, such as LiCoO₂, are applied widely as cathodes in lithium ion batteries since they are considered as thermodynamically stable materials over a large Li-concentration region. A high Li-ion mobility can be realized within the lattice, therewith showing small volume change. Energy density and safety are crucial requirements for such batteries, since, for example, unwanted reactions and phase changes can lead to explosions (thermal runaway).