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Volume 3, Issue 2 ISSN: 2470-9905 Crystallography 2017
October 16-17, 2017
2nd International Conference on
October 16-17, 2017 | Chicago, USA Applied Crystallography
A K Thakur, Struct Chem Crystallogr Commun, 3:2
DOI: 10.21767/2470-9905-C1-002
Role of crystal structure stability for energy storage applications
A. K. Thakur
Indian Institute of Technology Patna, India
Materials research for energy storage applications has drawn considerable attention in recent years owing to growing alertness
on saving earth from impending dangers of pollution, implementation of stricter emission norms across the globe and
emerging emphasis on development of clean/green energy alternatives. To meet this challenge, chain of efforts aimed at bringing a
paradigm shift in energy research is underway. Potential candidates are solar photovoltaics, fuel cells and storage devices. Further,
the best considered and commercially available alternative is solar photovoltaics. However, it cannot act itself as a standalone energy
solution. It requires storage devices as backup for providing energy when source of solar energy recedes into background during
night. The most sought-after storage devices are high energy density rechargeable batteries, supercapacitors and a hybrid of the two.
All energy storage devices are based on conversion of stored chemical energy into electrical energy. Energy storage devices, being
multi component system, primarily comprise a separator compartment sandwiched between two electrodes (anode & cathode).
Energy storage capability is determined by its crystallographic structure. Crystallographic structure & phase, structural stability
and strain bearing capability of these components play a crucial role in determining their suitability as a storage device component.
Such applications require a single phase layered crystallographic structure with attributes such as; (a) availability of guest sites for
intercalation-deintercalation of cations during charge-discharge cycles, (b) layered tunnel type structure along all the planes in a
3-D geometry, (c) presence of crystalline structure with a flexible framework, (d) sustainability of volume expansion with capability
of withstanding lattice strain, (e) phase stability etc. In the present work, we report a review of the crystallographic features of some
important material structures used in energy storage applications. State of-the-art developments in the area covering recent emphasis
on development of new generation of materials with structural suitability for high energy density applications is proposed to be
discussed with summary of the ongoing work in our laboratory at IIT Patna.
Fig.1: Layered structure with Na+ ion intercalation sites in the proposed sodium battery electrode
Biography
A. K. Thakur is currently working at the Department of Physics at the Indian Institute of Technology Patna, India as Associate Professor. His research area is experimental
condensed matter physics and applied physics with focus on wide variety of materials including ceramics and polymer composites for device applications including sen-
sors, EMI shielding and renewable energy. His current interest lies in development of new generation of novel functional materials for clean and green energy alternatives.