N Balasubramainan

Transition Metal Oxides as Cathodes for Li-ion battery: Structure, stability and substitution effects

First–principles DFT simulations are computationally demanding but are reasonably accurate in predicting properties of battery cathode materials. Properties relevant to selection of cathode
material include electrochemical potential, structural stability, energy/power density and cycle life etc. Computational screening of materials speeds up the process of material discovery by
saving on costs of experiments and time. In addition, it helps in developing correlation between properties and structural and chemical aspects. Here we analyze some of these aspects for the

Energy Consumption and CO2 Emissions by the Indian Mobile Telecom Industry

The Indian mobile telecom industry, one of the fastest growing sectors in India, had 5843 million subscribers in 2010-11 registering an annual growth rate of 4915%. The energy consumed by the sector was 163 PJ and the corresponding CO2 emission was estimated at 329 million tons. In this paper, the mobile telecom industry is dis-aggregated into various segments, based on the life-cycle of the device, and each segment’s contribution to the overall energy consumption and its respective CO2 emissions are discussed.