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DST-IIT Delhi Centre on Energy Storage Platform on Batteries

Subcategory (under Clean Energy): Cross Cutting
Technology Readiness Level (TRL): TRL 4 - Early prototype
Technology Outline (Process Description)

ESPOB at IIT Delhi would bring together different expertise for the development of redox flow battery, ion-battery and photo-electrochemical water splitting technologies using earth abundant materials.

The objectives and deliverables are met via four domain areas:

  • graphene and modified forms of carbon
  • mixed-metal oxides/ transition metal oxides/ perovskites
  • organic-inorganic hybrid materials
  • molecular and kinetic simulation and device level modelling

These materials along with modelling and simulations were used to generate fundamental knowledge anddevices. A few of the devices are further developed to system level products.

Salient Features/Advantages

  • Improved design and material synthesis for vanadium redox flow battery
  • Reduction in the use of Platinum catalyst by use of electro- chemically nitrided SS based anode
  • The development of microfluidic electrolyzers and non-Pt based photo/electrocatalyst aligns with national initiatives such as the National Green Hydrogen Mission (NGHM), make in India, and Atmanirbhar Bharat, aiming to reduce dependency on energy imports 
  • The microfluidic electrolysis cell-fuel cell tandem operation achieved a hydrogen production rate of 13 mL/h, equivalent to a current density of 717 mA/cm² at 2.5 V.  
  • Accelerated stress testing of the system for 380 hours demonstrated only nominal performance degradation. The microfluidic electrolysis cell-fuel cell configuration achieved a power density ranging from 11.45 to 14.68 mW/cm²

Key Outcomes

  • Developed 0.5 kW/1kWh vanadium redox flow bat- tery (system level development)
  • Developed 5l/h alkaline water electrolyzer based on electrochemically nitrided SS electrode with commercial anion exchange membrane
  • Developed cellulose-ceramic composite paper sepa- rator roll (60 mm width, 50 meter length)
  • A non-Pt based photo/electrocatalyst has been suc- cessfully developed for hydrogen generationand fuel-cell reactions
  • High-Performance Sodium-ion and Zinc-ion Batteries are developed
  • Microfluidic electrolysers achieve component reduc- tion by scaling down to a micron scale

IP Protection details

  • Patent filed (Title, national/International): 1. Microreactor with Permeable Electrodes for Pure Hydrogen Generation, 202111055555 dated 30/11/2021. 2. Electrochemical Preparation Method for Vanadium Electrolyte and its Application Thereof. Indian Application No. 202011021300: Dated 20- 05-2020. 3. Monitoring System for A Flow Battery, Indian Patent Application No.: 202011011037 dated 14- 03-2020. 4. A Novel Process to Develop Efficient Electrode for Efficient Vanadium Redox Flow Battery, Indian Patent Application : 201911000339. Dated 24-12-2019. 5. Monitoring System for A Flow Battery, International Patent    Application No.: PCT/IB2020/054072 dated 30-04-2020. 6. Electrochemical Preparation Method for Vanadium Electrolyte and its Application International Patent Application No.: PCT/IN2021/050449, Dated 10-05-2021
  • Patents Granted: Redox Flow Battery System with Improved Energy Efficiency and Method of Operating, Indian Patent Application No.: 201711018872, Dated 29-05-2017
  • Copyrights obtained /progress on commercialisation /Pl. specify connect with industry: Start-up registered
Supporting Photographs/Images

Contact details (for more information)

  • Nodal Person name: Prof. Anil Verma and Prof. S. Basu
  • Email ID: anilverma@iitd.ac.in; sbasu@iitd.ac.in
  • Organisation name (Relevant link/web page): IIT Delhi

Organizations involved in the development (logo/name)

IIT Delhi, IISc Bangaluru, ARCI-CFCT, CSIR-CGCRI, CSIR-IICT, CSIR-IMMT, Washington University, Hero Electric, AVATT Technologies (Own start-up)

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