Engineering Electrochemical Materials for Energy Storage and Sustainability: From Rechargeable Batteries to Power Plants
Event details
| Date | 24.05.2016 |
| Hour | 09:15 › 10:15 |
| Speaker | Dr Asghar Aryanfar - California Institute of Technology |
| Location | |
| Category | Conferences - Seminars |
Method in portable electronics, solar/wind farms and power grids. We plan to carry-out the state-of-the-art and system-level research and development within the following contexts:
I. Design and engineering of advanced energy storage devices:
i. Formation of dendrites and dead lithium crystals on the electrode compromise the safety and durability in the rechargeable batteries. Particularly lithium is the lightest and the most electropositive metal and can store about 10 times more energy per unit weight than the conventional anodes, making the energy density comparable to fossil fuels. We would like to understand the physics, mechanics and chemistry of instigation and growth of the amorphous and polycrystalline aggregates and engineer methods to inhibit their formation by developing dedicated experimental and computational methods. Furthermore, we seek to investigate the elastic interaction/failure of main device components during operation and formulate computational methods for analysis.
ii. Electrochemical passivation is a critical phenomenon for the systems lifetime stability. We would like to understand the formation mechanism, structural properties and extract the quantitative impact of the solid electrolyte interphase and double layer in the efficiency and charge capacity of the system.
iii. Electrolytes/electrode are the medium of transport/hosting ions/atoms during the operation. We would like to systematically design the electrolytes with the highest ionic conductivity, mechanical strength and chemical stability by studying the physics and chemistry of charge transport/transfer. Tunning the underline properties would help us to synthesize original electrolytes/electrode composites for obtaining higher safety, energy density and cycling efficiency.
II. Preventing chronical electrochemical corrosion and fracture: Sustainability of industrial and civil infrastructures requires a deep understanding and engineering of their mechanisms of mechanical and chemical decay. We would like to investigate the corrosion/cracking kinetics of metals in extreme conditions temperature, humidity etc. by coupling the electrochemical transport and reaction kinetics by developing precise experiments and affordable algorithms.
Bio: Asghar Aryanfar received the B.S. in Civil and Mechanical Engineering (double major with distinction) from Sharif University of Technology, Iran in 2009 and the M.S. and Ph.D. degrees in Mechanical Engineering from California Institute of Technology, in 2010 and 2015, respectively. He is currently Postdoctoral Scientist at University of California, Los Angeles and Visitor at Caltech. Aryanfar’s research has been in the application of experimental electrochemistry and computational multiphysics modeling to electrochemical materials with emphasis on energy storage and sustainability. Current projects include analysis and design of reliable rechargeable lithium-based batteries and prediction/hindering of corrosion kinetics of heterogeneous materials in extreme environments.
I. Design and engineering of advanced energy storage devices:
i. Formation of dendrites and dead lithium crystals on the electrode compromise the safety and durability in the rechargeable batteries. Particularly lithium is the lightest and the most electropositive metal and can store about 10 times more energy per unit weight than the conventional anodes, making the energy density comparable to fossil fuels. We would like to understand the physics, mechanics and chemistry of instigation and growth of the amorphous and polycrystalline aggregates and engineer methods to inhibit their formation by developing dedicated experimental and computational methods. Furthermore, we seek to investigate the elastic interaction/failure of main device components during operation and formulate computational methods for analysis.
ii. Electrochemical passivation is a critical phenomenon for the systems lifetime stability. We would like to understand the formation mechanism, structural properties and extract the quantitative impact of the solid electrolyte interphase and double layer in the efficiency and charge capacity of the system.
iii. Electrolytes/electrode are the medium of transport/hosting ions/atoms during the operation. We would like to systematically design the electrolytes with the highest ionic conductivity, mechanical strength and chemical stability by studying the physics and chemistry of charge transport/transfer. Tunning the underline properties would help us to synthesize original electrolytes/electrode composites for obtaining higher safety, energy density and cycling efficiency.
II. Preventing chronical electrochemical corrosion and fracture: Sustainability of industrial and civil infrastructures requires a deep understanding and engineering of their mechanisms of mechanical and chemical decay. We would like to investigate the corrosion/cracking kinetics of metals in extreme conditions temperature, humidity etc. by coupling the electrochemical transport and reaction kinetics by developing precise experiments and affordable algorithms.
Bio: Asghar Aryanfar received the B.S. in Civil and Mechanical Engineering (double major with distinction) from Sharif University of Technology, Iran in 2009 and the M.S. and Ph.D. degrees in Mechanical Engineering from California Institute of Technology, in 2010 and 2015, respectively. He is currently Postdoctoral Scientist at University of California, Los Angeles and Visitor at Caltech. Aryanfar’s research has been in the application of experimental electrochemistry and computational multiphysics modeling to electrochemical materials with emphasis on energy storage and sustainability. Current projects include analysis and design of reliable rechargeable lithium-based batteries and prediction/hindering of corrosion kinetics of heterogeneous materials in extreme environments.
Practical information
- Informed public
- Free
- This event is internal
Organizer
- IGM
Contact
- Prof J. Botsis