Title:Advances in Electrolytes for High Capacity Rechargeable Lithium-Sulphur Batteries
VOLUME: 5 ISSUE: 1
Author(s):Mir Mehraj Ud Din*, Sampathkumar Ramakumar, Indu Muraleedharan Santhakumari and Ramaswamy Murugan
Affiliation:High Energy Density Batteries Research Laboratory, Department of Physics, Pondicherry University, Puducherry-605014, CSIR-Central Electro Chemical Research Institute, Chennai, Tamil Nadu 600113, High Energy Density Batteries Research Laboratory, Department of Physics, Pondicherry University, Puducherry-605014, High Energy Density Batteries Research Laboratory, Department of Physics, Pondicherry University, Puducherry-605014
Keywords:High energy density, lithium garnets, lithium sulphur batteries, solid electrolytes, ethylene carbonate, dimethyl carbonate.
Abstract:Reliable energy storage is a censorious need for an extensive range of requisite such as
portable electronic devices, transportation, medical devices, spacecraft and elsewhere. Among the
known storage devices, the lithium ion (Li+) batteries have enticed attention because of higher theoretical
energy density. Nevertheless, the state-of-the-art electrolyte in lithium batteries utilizing a Li+
salt dissolved in organic-type solvents poses severe safety concerns like flammability arising from
dendrite formation. Next generation (beyond Li+) battery systems such as lithium sulphur (Li-S) batteries
have gained interest in recent times. This battery system has been extensively revisited in an
attempt to develop high energy batteries and is now considered as the technology of choice for hybrid
vehicle electrification and grid storage. Higher theoretical capacity and higher theoretical energy
density, environmental friendliness and low cost of active material make the Li-S batteries an ideal
candidate to meet increasing energy requirements. This review looks at various advanced electrolytic
systems with much emphasis on solid state electrolytic systems for Li-S batteries because of their
striking properties. The technical issues of the sulphur cathode are also summarized and the strategies
followed in recent years are highlighted in this review to address these issues. It is anticipated that
Li-S batteries with efficient solid electrolytic system may replace the conventional insertion-type low
energy density Li+ batteries in the near future.
