Nano Dimensionality: A Way towards Better Li-Ion Storage
Uttam Kumar Sen, Sudeep Sarkar, Pavan Srinivas Veluri, Shivani Singh and Sagar Mitra
Pages 21-35 (15)
Nanodimensional materials such as transition metal oxides, polyanionic based materials and metal fluorides can
be used as cathode while metal nanoparticles, alloys and metal oxides are preferred as anode for next-generation lithiumion
batteries (LIBs) in order to obtain high reversible capacity, rate capability, safety, and longer cycle life. These
nanomaterials can offer relatively short ionic and electronic pathways which leads to better transportation of both lithium
ions and electrons to the particles core. This article emphasize on the effect of nanodimension on the electrochemical
performance of cathode and anode materials. Their synthesis processes, electrochemical properties and electrode reaction
mechanisms are briefly discussed and summarized. Furthermore, the article highlights recent past scientific works and
new progresses in the field of LIBs. It also highlights the direction to overcome the existing issues of current lithium
storage technology. In future, we may overcome all the existing issues of LIBs and can deliver excellent cathode and
anode combinations to fulfill maximum practical efficiency with low cost and ultimate safety for high end applications.
Anode, cathode, lithium-ion battery, nanodimension, nanomaterials.
Electrochemical Energy Laboratory, Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.