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My degree paper topic is defined as the multi-scale thermal transport modeling for nanostructured electrodes. The major work is inspired by the process of my literature review of nano material and the paper Combined Microstructure and Heat Conduction Modeling of Heterogeneous Interfaces and Materials . The content is listed below:
Research Memos 1. Multi-scale informatics With the emerging of nano science, scientist collected a lot of interesting information from micro structures, which is . However, the engineering paradigm is still macro modeling. How to accommodate the new information became a critical issue. I am building up the "multi-scale informatics" thinking. my idea about material transport properties while doing senior design. I am trying to link the nano structure material transport properties to macro properties. But I just started and looking forward to discover more topics to talk about. 2. Complex system and design optimization Also , I am interested in thinking about engineering from complex system and using data analysis . Complexity is one of the major characteristics for the future technology development. Using data tools to facilitate science exploration and engineering design is my prospective for the future. As a consequence, I am reading about graph theories and applied them into a complex network analysis. You may find it out on my web http://www.letianwang.me/network-analysis.html. I also came up with an idea using data to facilitate the electrode research for Lithium-ion battery: http://www.letianwang.me/engineering-design-for-nano-electrode.html Four-month Summary
----------------------------------------------------------------------------------------------------------------- In the past four month, I have been absorbing and integrating knowledge and methods in the microscale transport especially in thermal transport and lithium-ion battery. Recently, I have been getting the fundamental understanding of the design science and social network. This will probably help me to understand the complex social-technical world. Lectures and Seminars ---------------------------------------------------------------------------------------------------------------------- Jan, 2014 Lecture: Nanowire Devices for High-Performance Energy Storage Lecturer: Liqiang Mai, Professor, WUT-Harvard Joint Nano Key Lab Dec, 2013 Lecture 1: Multiscale Simulations and Ultrafast Characterization for Nanoscale Heat Conduction Lecture 2: Phase-Change Heat Transfer at Micro/Nanoscale: from Fundamentals to Manufacturable Devices Lecturer: Ronggui Yang, Associate Professor, Mechnical Engineering, University of Colorado, Boulder Nov, 2013 Seminar: Interfacial Science and Technology in Energy Industry Lecturer: Qingxia (Chad) Liu, Professor, Chemical and Materials Engineering, University of Alberta Oct, 2013 Lecture: Simulation of thermal and thermoelectric properties of carbon nanomaterials Lecturer: S.Watanabe, Department of Material Engineering, The University of Tokyo No.5 Updates
Update No.4
1. MCM/ICM contest preparation 2. Thermal Transport Review Paper 3. Nanostructured Electrode Transport --------------------------------
HIghlights
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Outline for this update (Issue 2):
A basic physics concepts and principles in nanoscale solid transport. B my senior design topic choice ------------------------------------------------------------------------------------------------------------ A. Physics on Nanoscale Thermal Transports Content:
Comments:
B. Senior Design on Lithium-Ion Battery Nanostructures: I reviewed the cathode and anode research progress . In order to be coherent with our lab's work in solar cell, my current focus is on Si-C anodes. The silicon has good lithiation storage ten times of current graphite anode capacity, however it suffers from pulverization caused by its 400% volume change. Carbon material has excellent mechanical flexibility that could support silicon. Also carbon served electron transport pathway to improve the conductivity. Now I am researching on basic fabrication process of current Si-C structure. A more detailed presentation is in preparation. There are two points that I would love to note.
Here is my recent updates for the past 2-3 weeks.
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December 2015
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