Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Technology Category/ Market
Category – Energy, Energy Storage & Renewable Energy /Advance Material & Manufacturing
Applications –Power Grids, Transport, Railway Power Supplies, Remote Controls and Flashlights
Industry –Power Generation, Transport/Automobiles
Market –The Global Zinc-Ion Battery Market Size is valued at 9.10 billion in 2022 and is predicted to reach 12.30 billion by the year 2031 at a 3.55% CAGR during the forecast period for 2023-2031.
Image Gallery
Problem Statement
- Currently, aromatic quinones are used as promising cathode materials for Zn-ion batteries, but they are plagued with low voltages in contrast to inorganic materials.
- Hence, there is a need in the art to develop a working electrode extensively for aqueous Zn-ion batteries with high capacities
Technology
- An organic electrode cathode material comprising pentacene-5,7,12,14-tetraone (PT) and its dithiin derivative, dibenzo [b,i] thianthrene-5,7,12,14-tetraone (SPT) for an aqueous metal-ion battery with an aqueous electrolyte:
- The said cathode material is encapsulated in a mesoporous conductive additive to increase the electronic conductivity and cycling stability of the electrode, the said the conductive additive is CMK-3 carbon
- Further discloses, a preparation of electrode material for organic aqueous Zn-ion batteries, steps comprising:
- The aqueous metal-ion battery is Zn-ion battery, and the electrolyte is ZnSO4
- The strong π-stacking provides stability to PT through delocalization of π-electrons under electrochemical cycling
- Presence of sulfur atoms in the molecular skeleton (SPT) reduces the LUMO energy of the molecule, which results in a high voltage of the cell is improved by 120 mV in comparison to PT
Key Features/ Value Proposition
Technical Perspective:
- Pentacene-5,7,12,14-tetraone(PT) as a novel cathode material for aqueous Zn-ion batteries shows excellent reversibility for Zn2+ insertion/de-insertion with a single potential plateau
- The electrode material incorporated with CMK-3 exhibits capacity of 220 mAhg-1 with polarization of 80 mV, cycling stability up to 2000 cycle and rate capability event at 20 Ag-1
- Further, the voltage of the Zn-ion battery is tuned by the incorporation of sulfur atoms in the PT molecular framework.
User Perspective:
Higher energy density Zn-ion batteries with durability.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. KOTHANDARAMAN RAMANUJAM
Department of Chemistry
Intellectual Property
- IITM IDF Ref. 1945
- IN202041020063
Technology Readiness Level
TRL-4
Technology Validated in the Lab