Research
Goal
Realization of minimum energy loss when using conventional types of energy and of super-high efficiency of next generation renewable energy will enable suppression of the use of fossil fuels to the extreme or will usher in a highly efficient, environmentally compatible type of energy supply system. Furthermore, smart energy supply systems that incorporate these created energies harmonically can be established to realize a sustainable energy social infrastructure.
Research vectors
  • Establishment of innovative energy generation and storage technology and management and conservation technology based on nano-interface material structure control technology, ultra-low damage process technology, new concept micro-combustion technology, deep subterranean environment measurement technology and nondestructive inspection technology.
  • Realization of an innovative smart energy supply system by fusion of various types of power generation methods, considering a good balance between costs and efficiency and by fusion of power generation system and electricity accumulation system by introducing optimum design technology.
  • Building of business models and proposals for energy and science technology policies intended for the founding of a new Japanese nation based on energy and technology.
  • Benefits of the Innovative Energy Research Center
  • Defect-free superlattice structure produced for the first time in the world using a bio-template and ultimate top-down etching and realization of a super-high-efficiency quantum dot solar cell using its structure.
  • We proposed high-exergy-efficiency combustion capable of greatly reducing irreversible loss (exergy loss) that was unavoidable in the combustion by improving exergy rate at combustion start, and specific challenges such as a high-temperature oxygen combustion is being promoted currently.
  • World-leading lithium ion battery characteristics by high-volume and high-output type electrodes using techniques to synthesize a uniformly sized, highly crystalline active material (LiFePO4) at a 10-50 nm level.
  • Realization of high-efficiency fuel cells using world-leading synthesis of diverse hydrides including complex hydrides and highly functional solid hydrogen carrier.
  • Fusion of various types of power generation methods considering a good balance between costs and efficiency, and realization of a best mix of power generation systems and electricity accumulation systems using our own optimization design.
  • concept
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    Research content
    Green Nanotechnology Laboratory
    Securing safe and less-expensive energy and efficient utilization of energy are important issues confronting modern civilization. To clarify these issues and aiming at founding a Japanese nation based on energy technology, we are promoting studies of innovative green nano-devices. Particularly, we have been developing power generation devices (such as quantum dot solar cells), electricity accumulation devices (such as high efficiency batteries using nanomaterials), low power consumption devices (such as quantum-dot lasers, Ge transistors, Graphene transistors) and nano-energy systems, which are a combination of these elements. For manufacturing of these nano-devices, nano-structures should be produced accurately and without defects. The original properties of materials and quantum nano-structure should be extracted. This sort of processing is made possible only after intelligent nano-process technologies such as beam process and bio-template and ultimate top-down etching technology, which are the background of this research laboratory, are fully used.
    Energy Resources Geomechanics Laboratory
    The Energy Resources Geomechanics Laboratory is attempting to resolve global environmental problems and energy issues by actively taking advantage of the deep underground of the earth crust. Current global energy and the environmental landscape have changed drastically. The transition to innovative and renewable energy systems and environmental problems including global warming are the most important issues confronting the world. Recently, 'Methane hydrate' attracts attention as the next great energy source. The development of the unconventional oil resources 'shale gas' dramatically changes the global energy scene. Geothermal energy is anticipated as an important renewable resource in volcanic countries. Moreover, carbon capture and storage (CCS) technique will play a vital role in the limitation of worldwide global warming. Figures shows the research for investigation of fracturing behavior in unconventional reservoir. Our laboratory conducts research on smart methodologies to elucidate and utilize deep subsurface systems for energy and the global environment.
    Energy Dynamics Laboratory
    We pursue research and development on effective energy conversion and energy process in combustion and reactive thermal fluid systems with new technology concepts. By basing heat and/or mass regenerations for low-exergy-loss combustion as keywords, interdisciplinary researches are conducted with domestic and international collaboration partners in academic and industry. ●Micro-, Mild and Microgravity combustions ●Multi-stage oxidation by micro flow reactor with prescribed temperature profile ●Combustion with surrogate fuels, biomass, and synthetic fuels ●High-temperature oxy-fuel combustion
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    System Energy Maintenance Laboratory
    This research laboratory is engaged in research and development related to conservation and energy saving of equipment and systems using material assessment technology targeting large-scale sophisticated systems such as energy plants, airplanes, and automobiles.
    Activities include the following: 1) Development of nondestructive deterioration diagnosis method for structural materials, 2) Research relating to nondestructive inspection and health monitoring of structures, 3) Elucidation of mechanisms of functional materials and application to energy saving technology, and 4) Quantification and optimization of conservation.
    Multiphase Flow Energy Laboratory
    This laboratory is focusing in the development of innovative multiphase fluid dynamic methods based on the integration of supercomputing and advanced measurements, and research related to creation of environmentally conscious energy systems.
    Particularly, we are focusing in different field integration research and development such as creation of environmentally conscious type nano-cleaning technology using reactive multiphase fluid that is a thoroughly chemical-free, pure water free, dry type semiconductor wafer cleaning system using cryogenic micro-nano-solid high-speed spray flow, and also focusing on removal-reusing technology for solar cells and ITO membranes for conducting organic polymer (including indium oxide tin). Micro-nano-solid spray using ashingless semiconductor cleaning systems according to this proposal uses ultrasonic atomization of cryogenic micro-nano-solid particles along with the promotion of ice nucleation and atomization, with high-speed collision and ultimate heat flux thermoelectric cooling characteristics of cryogenic particulate flow. We intend to develop a highly sustainable cleaning system based on a new principle that quite differs from conventional ashing and resist removal system using oxygen plasma. Furthermore we are aiming to develop an environmentally conscious type nano-cleaning system that is directly related to the renewable power generation technology.
    Novel Battery Nanoscale Flow Concurrent Laboratory
    Development of clean energy sources, such as solar cell, Lithium ion battery and fuel cell, is increasingly accelerated all over the world because of recent problems of global-warming and nuclear power plant. It is indispensable to comprehend and control the flow of reactants or products in these batteries to improve the efficiency and decrease the cost. However, it is impossible to comprehend the flow dynamics of these substances accurately by conventional experiments or simulations because the flow field in these batteries consists of aggregations of very fine structure which is of the order of nanometer. Our laboratory analyzes the “flow”, or transport phenomenon of reactants or products in the batteries by large scale quantum calculation or classical molecular dynamics method using a supercomputer. Moreover, we aim to make a theoretical design of a next-generation battery which is high efficiency and low cost by comprehending the characteristics and governing factors of the transport phenomenon from the simulation results.
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