29図解Yamagata University Graduate School of Science and Engineering Research InterestElectrochemistryE-mail ・ h9rbvq3x@yz.yamagata-u.ac.jpFax ・ +81-50-3737-8260HP・http://c1.yz.yamagata-u.ac.jp/Particle dia. : 100 nm，Particle volume fraction: 20 vol%, Temp.：–15C，Cooling board：Cu，Thickness：0.3 mmSponge-like structureLamellar structureHeat dissipation sheetContent：In order to extract electricity from a lithium battery, an aluminum In order to extract electricity from a lithium battery, an wire must be connected inside the battery. Aluminum conducts aluminum wire must be connected inside the battery. electricity well. However, its surface is covered with an oxide film Aluminum conducts electricity well. However, its surface is that conducts almost no electricity. The thickness of the film is very covered with an oxide film that conducts almost no thin, a nanoworld smaller than a virus. And with the material that electricity. The thickness of the film is very thin, a nano world smaller than a virus. And with the material that touches the film, electricity may or may not flow. If electricity stops touches the film, electricity may or may not flow. If electricity flowing in the battery, the battery will stop working.stops flowing in the battery, the battery will stop working.To clarify the conduction mechanism at interface of metal oxide... it To clarify the conduction mechanism at interface of metal is guidelines for material selection and structural design of various oxide... it is guidelines for material selection and structural energy devices.design of various energy devices.You can't waste your precious energy. In order to make it flow more You can't waste your precious energy. In order to make it flow more smoothly in a battery that takes out electricity, smoothly in a battery that takes out electricity, and to prevent and to prevent leakage in a capacitor that stores electricity, leakage in a capacitor that stores electricity, we must carefully study we must carefully study what is happening at the interface what is happening at the interface of metal oxides and devise a way of metal oxides and devise a way to pass that electricity.to pass that electricity.Appealing point：Special objectivesIt has been 150 years since aluminum was practically used. But there are things I don't want you to forget. Before there is a good industrial product, there is a long history of failure.Yamagata UniversityGraduate School of Science and Engineering Research Interest ：ElectrochemistryE-mail ：h9rbvq3x@yz.yamagata-u.ac.jpFax：+81-50-3737-8260HP ：http://c1.yz.yamagata-u.ac.jp/ContentContent：A dispersion of silica particles (~several hundred nanometers) is A dispersion of silica particles (～several hundred frozen on a Peltierdevice. When freeze-dried after freezing and nanometers) is frozen on a Peltier device. When freeze-dried observing the agglomerate structure of the particles formed during after freezing and observing the agglomerate structure of the freezing process, an interesting agglomerate structure is observed the particles formed during the freezing process, an depending on the ice growth process. It seems that the final particle interesting agglomerate structure is observed depending on aggregation structure is determined by several factors of cooling the ice growth process. It seems that the final particle speed, particle layer compression due to ice growth, water aggregation structure is determined by several factors of cooling speed, particle layer compression due to ice growth, permeability in the particle layer. Furthermore, by creating a water permeability in the particle layer. Furthermore, by supercooledstate, it is possible to trap ice inside the agglomerates of creating a supercooled state, it is possible to trap ice inside particles and leave them as voids to create sponge-like agglomerates the agglomerates of particles and leave them as voids to of particles.create sponge-like agglomerates of particles.We are not actively considering applications, but in the ordinary We are not actively considering applications, but in the cases, preparation of catalyst carriers, drugs with sustained release, ordinary cases, preparation of catalyst carriers, drugs with etc. can be considered.sustained release, etc. can be considered.Appealing point：I'm thinking of applying it to industry, but I'm rather trying to go into the fundamentals of phenomena. Doing so may sprout from I'm thinking of applying it to industry, but I'm rather trying unexpected places.to go into the fundamentals of phenomena. Doing so may sprout from unexpected places.Yamagata UniversityGraduate School of Science and Engineering Yamagata University Graduate School of Science and EngineeringResearch Interest ：Chemical EngineeringResearch InterestChemical EngineeringE-mail ：sisido@yz.yamagata-u.ac.jpTel ：+81-238-26-3166E-mail ・ sisido@yz.yamagata-u.ac.jpFax：+81-238-26-3166Tel ・ +81-238-26-3166Fax ・ +81-238-26-3166Special objectivesContent It has been 150 years since aluminum was practically used. But there are things I don't want you to forget. Before there is a good industrial product, there is a long history of failure.SyringeSilica colloidAeration of dry airPeltierdeviceResin containerCooling plateParticle aggregation structure generated during freezing process of colloid and its controlParticle aggregation structure generated during freezing process of colloid and its controlAssociate professor Masahiro ShishidoAssociate professorMasahiroSHISHIDOConduction mechanism at interface of metal oxideConduction mechanism at interface of metal oxideAssociate professor Kazuhiro TachibanaAssociate professor Kazuhiro Tachibana
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