Development of Low-Cost Sodium-ion Battery: Fabrication and Application of NASICON Based Electrodes
Subcategory (under Clean Energy): Cross Cutting
Technology Readiness Level (TRL): TRL 4 - Early prototype
Technology Outline (Process Description)
High potential (3.0V) and high capacity (75mAh/g) Stable intercalation cathode (Na3Fe2(SO4)2PO4) (at 1C and after 50cycle) prepared at low temperature flexible synthesis process.
New polyanionic framework (P2O7) type material with Mo has better phase stability than NFS.
Better capacity retention from second to 100 cycles for Mo2P2O11. (5 mAh/g capacity loss in MOP as compared to 12mAh/g capacity loss in NFS).
Salient Features/Advantages
- Structural Engineering with NaMP2O7 (M = Fe, Mn, Co, Cr, and a mixture thereof) to develop novel cathode to access M3+/4+ redox couple for high capacity sodium-ion battery
Key Outcomes
High ionic character leading voltage up-gradation and creating material instability
Shift from a highly ionic SO4 2- ligand to a more covalent poly-phosphate ligand to enhance voltage using high-energy redox couples
IP Protection details
- Patent filed (Title, national/International): Nil
- Patents Granted: Nil
- Copyrights obtained /progress on commercialisation /Pl. specify connect with industry: Nil
Contact details (for more information)
- Nodal Person name: Prof. Rajiv Prakash
- Email ID: rprakash.mst@itbhu.ac.in
- Organisation name (Relevant link/web page): IIT (BHU) Varanasi
Supporting Photographs/Images
Organizations involved in the development (logo/name) Indian Institute of Technology (BHU) Varanasi |