Nano Structured Reduced Graphene Oxide (RGO) Coated TiO2 as Negative Electrode Additive for Advanced Lead acid Batteries

Jindal, Swati and Martha, Surendra Kumar (2016) Nano Structured Reduced Graphene Oxide (RGO) Coated TiO2 as Negative Electrode Additive for Advanced Lead acid Batteries. Masters thesis, Indian Institute of Technology Hyderabad.

Preview

Text
CY14MSCST11023.pdf - Submitted Version
Download (1MB) | Preview

Abstract

Lead-acid batteries(LABs)remains to be the most successful energy storage systems ever developed. Although lead-acid battery designs have been optimized in the past in several different ways, there are still certain challenges facing lead-acid battery designers, such as grid corrosion at the positive electrode, sulfation at both the electrodes, and poor charge acceptance of positive electrode, larger curing and formation time and more significantly low energy density because of high atomic weight of lead. So the current research efforts in electrochemical energy storage are directed towards achieving high energy density with reduced cost and less weight and reduce sulation. To overcome the issues of sulfation and formation efficiency of the electrodes we propose here reduced graphene oxide (RGO)coated TiO2 as a negative electrode additive for advanced Lead Acid Batteries(LAB). Addition of 0.5 wt. % of RGO coated TiO2 in to the negative active mass reduces sulfation, consequently increase battery formation efficiency from 3 cycle to 1 cycle, 10-20% increase in discharge capacity (C-rate performances). The additive also increases the battery life under high rate discharge conditions.

[error in script]

IITH Creators: