Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Technology Category/ Market
Category – Energy, Energy Storage & Renewable Energy
Applications -Semiconductors, Automobiles, Energy storage, rechargeable batteries
Industry –Energy Infrastructure
Market –Lithium-Ion Battery Market exceeded USD 52.5 billion revenue in 2022 and is projected to expand at over 16.5% CAGR from 2023 to 2032.
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Problem Statement
- Conventionally used lithium-ion battery technology employs anode materials such as graphite, which suffers from drawbacks such as slow kinetics of lithium insertion/extraction, irreversible conversion in metal oxides at high current densities, and recycling that involves multiple processes.
- Transition metal oxides, which follow a conversion mechanism rather than intercalation are used as an alternative, but their large volume expansion during cycling affects cyclic stability where there is long felt need to develop high-performance anode materials that overcome graphite’s limitations and enhance overall battery performance.
Technology
- The present invention discloses a lithium ion battery device and a method of preparation for the same.
- The said lithium ion battery device includes:
- The lithium ion battery device also comprises a reference electrode and counter electrode of lithium metal.
- Ferromagnetic α-Fe2O3/C is in the form of nanoparticles of 100nm size.
- The device includes an electrolyte comprising LiPF6 dissolved in ethylene carbonate/ diethyl carbonate (EC/DEC 1:1 v/v).
- The battery is assembled by loading the prepared anode, lithium cathode, and electrolyte in an areal density range of 0.5-0.75 mg cm–2 to form the lithium-ion battery.
Method:
The invention further discloses a method of enhancing battery capacity in a lithium ion battery
The said method includes:
Key Features/ Value Proposition
Technical Perspective:
- A high performance lithium ion battery device and
- a method of preparation with ferromagnetic material as anode
- The anode is configured to be magnetized and control lithium ion intercalation by reducing diffusion path of lithium ions
- Involves applying an external magnetic field~1500 Gauss, on the anode side during charging or discharging cycles after a predetermined number of cycles to enhance battery capacity.
User Perspective:
- The battery capacity is enhanced by 50% or more
- Improving capacity, life cycle, and recycling of lithium ion batteries using magnetic hematite.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. RAMAPRABHU S
Department of Physics
Intellectual Property
- IITM IDF Ref. 1873
- IN470163-Granted
Technology Readiness Level
TRL-4
Technology Validated in the Lab