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Hydrogen storage system development for vehicles

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

Metal hydride-based hydrogen storage system which can be integrated with vehicles and will not require any external heating or cooling. The system will be modular and capable of stacking in multiples of 1 kg hydrogen each. The major objective is to develop compact, low weight and least energy intensive 1 kg H2 system to integrate with light and heavy-duty vehicles operated using fuel cell or IC engine. The MH system was numerically analysed for its absorption and desorption performance, the system had various heat transfer augmentation methods being integrated. The material composition used for storage is being optimised and is in the process of being patented. This material have a gravimetric capacity of 4.14 wt%. Thermodynamics, kinetic and cyclic stability tests have been carried out for the material. This material is being synthesized using industrial grade raw material, so the cost as compared to the commercially available materials reduced by 83%. The gravimetric capacity obtained is more than double as compared to that of commercially available materials. The system will be demonstrated for its use in vehicular applications.

Salient Features/Advantages

  • Gravimetric capacity of material composition developed is 14 wt%
  • System developed will not require external heating or cooling or use of heat transfer fluid
  • System will be used for vehicular applications and will be stackable and modular

Key Outcomes

  • Can be charged at < 35 bar, charging time will be 18-30 minutes for 1 kg of hydrogen
  • Cost of material developed is 83% less than commercially available materials
  • Heat transfer fluid flow not required during endo/exothermic reactions of metal hydrides
  • Zero incubation period in the material and 95% absorption in initial 40 seconds
  • The onboard hydrogen discharge is 85 – 100% hydrogen can power fuel cell upto 6 hrs

IP Protection details

  • Patent filed (Title, national/International): Two
  • Patents Granted: Nil
  • Copyrights obtained /progress on commercialisation /Pl. specify connect with industry: Commercialization in progress

Contact details (for more information)

  • Nodal Person name: Prof. Pratibha Sharma
  • Email ID: Pratibha_sharma@iitb.ac.in
  • Organisation name (Relevant link/web page): Indian Institute of Technology Bombay
Supporting Photographs/Images

Organizations involved in the development (logo/name)

Indian Institute of Technology (IIT) Bombay

DST-IITB Energy Storage Platform on Hydrogen

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