People

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Principal Investigator
Curriculum Vitae

Research focuses on the field of energy storage and conversion materials: nano structured electrodes for advanced rechargeable batteries, dye-sensitized solar cells and thermoelectric conversion; charge ordering, structure stability, processing - structure - property - performance relation in functional ceramics and combining first principles computation with high-skilled experiments for rational materials design and optimization for energy applications.

Recent programs include the design, synthesis, processing, and characterization of mixed transition metal oxides as high energy density electrode materials in advanced lithium ion batteries. Of particular interest is the optimization of high energy density Spinel oxides that are low cost, low toxicity and much safer. In situ time-resolved x-ray diffraction and in situ electrochemistry enabled transmission electron microscopy are under intensive development by Professor Meng's Research Group. Recent work has also expanded to inorganic nanofibers and nanotubes for energy storage and conversion.

 


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Postdoctoral Fellow

Tom Yersak received his undergraduate degree in Mechanical Engineering from Princeton University in 2009. With a Graduate Research Fellowship from the NSF he attended the University of Colorado at Boulder (UCB) and graduated with his Ph.D. in the summer of 2013. While at UCB he worked with Dr. SeHee Leeand Dr. Conrad Stoldt primarily on the development of solid-state Li metal batteries based on the Li2S-P2S5 glass-ceramic system of electrolytes. His dissertation examined the FeS2 conversion chemistry and the development of high capacity composite solid-state electrodes. After his departure from UCB, the startup company founded partly on this research (Solid Power Inc.) received an award through ARPA-E’s RANGE program to develop a prototype solid-state EV battery. His other research interests while at UCB included work on Si alloy anodes and cyclized-PAN coatings for conventional FeS2 and nano-Si electrodes.

 


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Postdoctoral Fellow

Dhamodaran received his PhD in physics from University of Hyderabad, India (2007). He was a physics faculty at IITK for more than three years before joining the group. His research interests are nano-materials, nano-fabrication and in-situ characterization techniques.

 



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Graduate Student

Michael Verde received a bachelors of science in chemistry from the University of New England. His current research involves optimizing reaction conditions in order to synthesize new cathode materials for use in lithium ion batteries. His interests involve exploring the electrochemical properties of unique nanoscale morphologies and geometries among different electrode materials with the goal of controlling these features to optimize battery performance.

 


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Graduate Student

Danna graduated with a bachelor of science degree in Chemistry from University of Science & Technology of China. Her research focus on a combination of computational and experimental on exploring better electrode materials for Li ion battery.

 



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Graduate Student

Jing graduated from University of Science and Technology of China in 2009 with a bachelor degree on material science and engineering. She has great interest in synthesizing, characterizing and exploring novel materials for both cathodes and anodes of Li-ion batteries. Focusing on designing material structures with First Principle Calculation and improving material performance with advanced processing techniques, she believes that electrodes tomorrow will not only have high energy density and conversion efficiency, but will also be safe, low-cost and eco-friendly.

 



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Graduate Student

Ziying Wang graduated with a B.S. in Chemistry from California Institute of Technology. Ziying is interested in the fundamental studies of solid state Li-ion batteries through in situ observations of lithium movement and reactions by electron microscopy and spectroscopy. With In-Situ insight, interfacial phenomena that are present between many solid-solid interfaces can be understood. With such knowledge, newer, safer, and more efficient designs can be engineered for future storage devices. Electrochemical reactions in aqueous form are also of fundamental interest.

 



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Graduate Student

Alex obtained a BS in Chemistry from the University of Washington in Seattle while performing undergraduate research in organometallic chemistry as well as applied analytical chemistry. One of Alex’s initial projects in the Meng lab will be the application and manipulation of the polyol process to synthesize metal and metal oxide materials that have characteristics of interest. These compounds will then be studied for use as positive electrode materials in electrochemical cells.

 



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Graduate Student

Chandler graduated from UC Berkeley with a bachelor’s degree in Environmental Engineering Science. His current Ph.D. research is focused on the improvement of solid state battery fabrication and design as well as the use of in-situ TEM to quantitatively understand the processes occurring within the bulk and electrode/electrolyte interfaces of microbatteries during cycling. He is motivated by a desire to design batteries that use materials with lower environmental impacts and costs for potential use at larger scales to accommodate sustainable energy systems.

 



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Graduate Student

Hyung-Man received B.S. and M.S. degrees in Materials Science and Engineering from Pusan National University in South Korea. His research in the master course focused on the analysis of time-dependent elementary polarizations in LIB by using EIS with three-electrode cell and theoretical analysis of an equivalent circuit. His current research interests involve exploring the functional nanostructured oxides for electrochemical energy storage, which shed light on the enhancement of the rate capability in not only LIB, but also electrochemical energy storage systems with other chemistries such as Mg2+ and Na+.

 



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Graduate Student

JaeWook Shin received a bachelors of science in Chemical Engineering from the University of California, San Diego. His research focuses on the application of Metal-Organic Frameworks (MOFs) in lithium and sodium ion batteries. He believes that MOFs in battery material can have a lot of applications not just cathode or anode but also separators or structural support for current battery materials.

 



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Graduate Student

Haodong graduated with a bachelor of Chemistry from Xiamen University. He is interested in exploring high energy electrode materials for rechargeable battery by using computational and experimental methods.

 



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Graduate Student

Hyojung Yoon received B.S. and M.S. degrees in Chemical Engineering from Inha University in South Korea. Her research in the master course focused on the synthesis of polymer/quantum dot composites. Her current research interests are finding break-through for dye-sensitized solar cells by replacing dye by quantum dots.

 



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Graduate Student

Minghao graduated with a bachelor of Physics in Nankai University and a Master’s degree in Materials Science and Engineering from the Chinese Academy of Sciences. During his Master’s study, he focused on functional materials for rechargeable lithium-ion batteries. Currently, he spends most of time thinking about advanced lithium-ion battery based on novel type of high performance electrode materials using computational method.

 



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Graduate Student

Mark received his bachelor degree on Materials Science and Engineering from the University of Science and Technology Beijing. He is interested in the exploration of new cathodes materials and their applications in plug-in-hybrid and all-electric vehicles. He is also interested in future applications of lithium batteries for stationary electrical energy storage.

 




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Graduate Student

Octavio is interested in the investigation of interface with energy storage device (energy source and load) with the purpose of optimizing battery chemistries for specific applications.

 



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Graduate Student

Chang Liu graduated from Fudan University, China, with a bachelor degree in Materials Science. Her research focuses on Pulsed Laser Deposition (PLD) to make thin-film battery. She is also interested in solid state electrolyte and all-solid-state thin film batteries.

 

 

Undergraduate Researchers




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Undergraduate Student

Shawn is a nanoengineering undergraduate with a focus on material. He is researching Sodium ion batteries with Jae Wook Shin.

 



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Undergraduate Student

Raziel is a chemical engineering undergraduate with a focus on nanoegnineering. He is researching something cool with Hyojung (Chloe) Yoon because that's just what he does.

 



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Undergraduate Student

Michael is a nanoengineering undergraduate with a focus on electrical engineering. He is researching thin film lithium ion batteries with Ming-Che (Tim)Yang.

 



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Undergraduate Student

Han is a Nanoengineering undergraduate with a focus on material science. Exploring the electrochemical properties of unique nanoscale morphologies and geometries with PhD candidate Micheal Verde.

 



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Undergraduate Student

Edward works with Jae on metal-Organic Frameworks (MOFs) in lithium and sodium ion batteries. Guiding humanity towards a brighter tomorrow with sustainable energy.

 



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Undergraduate Student

Sadat is a Nanoengineering (material focus) and Economics undergrad. He is researching on Sodium Ion battery electrode materials with Daniel Lee, Jing Xu, Mark Ma and Jamie Somerville.

 



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Undergraduate Student

Andrew is working with Haodong on high energy density cathode materials.

 



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Undergraduate Student

James is currently working with Daniel, Jing, and Mark on the synthesis and testing of different materials for the cathode and anode of sodium-ion batteries.

 



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Undergraduate Student

Derek is working with Haodong on high energy density cathode materials.

 



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Undergraduate Student

Aditya is a third year undergraduate nanoengineering major with a focus in materials science. He is working with Jae on Metal-organic frameworks (MOFs) in lithium and sodium ion batteries.

 



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Undergraduate Student

Michael is a Nanoengineering undergraduate with a focus on material science. Currently researching abroad at Osaka University in Japan, Michael will continue his work on lithium ion battery and lead-acid batteries with graduate student Mike Verde upon returning to San Diego.

 

 

Visiting Scholars




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Visiting Professor Summer 2011

Dr. Arroyo is Professor at Facultad de Ciencias Químicas, Universidad Complutense de Madrid Spain. Her research interest focuses on the combination of experimental and computational techniques to investigate various areas of Solid State Chemistry, including materials for lithium ion batteries and phase transitions under extreme conditions.

 



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Visiting Scholar 2013.02 -

Hao Liu is a PhD student in department of Physics in the Chinese University of Hong Kong. My research focus on the design, synthesization, and characterization of functional nanomaterials for anode and cathode of lithium ion batteries.

 



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Visiting Scholar 2013.01 - 2013. 03

Jie Zhao is PhD student in Department of Applied Science for Electronics and Materials in Kyushu University of Japan.Her research interest focuses on the synthesis exploring high energy and safe electrode materials for sodium ion battery.

 



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Visiting Scholar 2013.01 - 2013. 09

Uriel Pérez is an Engineering Student on the Centro de Graduados e Investigación en Química in Tijuana, Mexico . His research interest focus is in the development of magnesium batteries as well as the study of new electrolytes and cathode materials for this type of novel battery.

 

 

 

 

Former Members




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Graduate Student ('12 - '13)

 



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Graduate Student

 


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Graduate Student ('09 - '13)
Daniel is currently a project scientist at Samsung

 


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Postdoc/Assistant Project Scientist ('10 - '13)
Kyler is currently a research scientist at MIT

 


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Graduate Student ('07 - '12)
Bo is currently a Postdoctoral Fellow at MIT

 



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Graduate Student

Chris is currently a Research Scientist at Johnson Control

 




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Postdoctoral Fellow (Oct.'09 ~ Aug.'10)
Dan is currently a Research Engineer at HP

 



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Graduate Student (Sep.'10 ~ Aug.'12)

 




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Postdoctoral Fellow

 



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Graduate Student (Sep.'10 ~ April.'11)

 



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Graduate Student (Sep.'12 ~ Feb.'13)

 




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Undergraduate Research Assistant (Jan.'10 ~ Aug.'10)
Toru is currently attending Stanford University

 




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Undergraduate Research Assistant (Oct.'09 ~ Mar.'10)

 



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Undergraduate Research Assistant (Feb.'12 ~ Feb.'13)