Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Technology Category/ Market
Automobile & Transportation, Green Tech
Industry: Electric Vehicles (EVs), Battery Technology, Automotive Industry, Renewable Energy Storage, Electronic Devices.
Applications: EV Charging Infrastructure, Battery Trade, Renewable Energy & Grid-Scale Energy Storage, Off-Grid/ Remote Locations, Sustainable & Green Building Technology
Market: The global electric vehicle (EV) battery market size was estimated at $ 44.69 B in 2022, expected to grow with 21.1% CAGR in 2023-30.
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Problem Statement
- The existing problem revolves around the insufficiency of current cooling solutions for battery stacks in electric vehicles (EVs).
- The inefficiency of conventional coolants results in reduced overall efficiency of EVs, leading to shorter mileage & less environment friendly operation.
- EVs face challenges in maintaining battery stack within optimal temperature range, affecting performance & efficiency.
- In sub-zero temperature regions i.e., the Himalayan region, EVs face difficulties due to lack of suitable cooling solutions.
- Conventional coolants often lack the necessary thermophysical properties, like thermal conductivity & specific heat capacity, required for effective cooling.
- Vapor pressure also plays a crucial role in the single-phase operation of coolants, and this issue needs to be addressed.
Hence, there is a need for a highly efficient and versatile cooling solution for battery stacks in EVs, and this invention aims to address above mentioned shortcomings.
Technology
The present patent discloses an organic nanofluid coolant, combining deep eutectic solvent (DES) and nanoparticles, to efficiently cool battery stacks in EVs and various industrial applications, offering enhanced performance & sustainability.
Method:
- Preparing a mixture of diphenyl ether & Dibenzyl ether in a container fitted with condenser to obtain a deep eutectic solvent.
- Adding one or more amount of hexagonal boron nitride (h-BN) nono-powder to the deep eutectic solvent to obtain a nanoparticle enhanced deep eutectic solvent
Key Features/ Value Proposition
User Perspective:
- Enhanced EV Performance: improved efficiency and range. Reduces emissions & supports a cleaner environment.
- Ensures battery reliability and safety with biocompatible materials.
- Versatile in Various Climates: Works well across a wide temperature range.
Technology Perspective:
- Nano-enhanced Cooling: Utilizes nanoparticles to boost thermal properties.
- Deep Eutectic Solvent (DES): Leverages DES as a base fluid for its unique properties.
- Eco-Friendly: Complies with environmental standards for sustainable cooling.
Industrial Perspective:
- Versatile Industrial Use, offering cost-effective and efficient cooling.
- Energy Efficiency: Reduces energy consumption and minimizes downtime.
- Scalable Solution: Suitable for mass production and widespread industrial adoption.
Questions about this Technology?
Contact for Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Sarit Kumar Das
Department of Mechanical Engineering
Intellectual Property
IITM IDF Ref. 2369
IN Patent No. 452212
Technology Readiness Level
TRL- 4
Technology validated in Lab