Shinshu University Faculty of Engineering
Zettsu Laboratory
Energy storage materials and technologies
that will lead to the future
A new starting point for academic research is born from the wisdom of those who are willing to address the issues that prevent the limits of current performance.
Visualization and free control of the energy landscape of the interphase ion diffusion field formed at the electrode and electrolyte interface
Taking on the challenge of developing new power storage materials and interface technologies based on the guiding principles of
"utilization of metastable phase interfaces" and "utilization of continuous media"
Multi-layer structure control of electrochemical phase interface
Free control of the energy landscape formed in the ion diffusion field
Energy storage materials and interface technologies based
on atomic and molecular technologies
-Energy density, rapid charge / discharge characteristics, and long-term cycle characteristics are established by forming a superion conduction path.-
Adopted by JST-CREST
October 1, 2021
It was adopted in the 2021 JST-CREST "Free Arrangement System".
Problem name: "Multi-layer structure control of solid-liquid electrochemical phase interface"
research summary:
(1) "Utilization of semi-stable phase interface by increasing configuration entropy" brought about by multi-elementization and compounding, and (2) Characteristics, polymolecularness, and orientation control of liquid crystal polymer as a dynamic continuum medium Multi-order solid-liquid electrochemistry with controlled energy interface based on the guiding principle of "utilization of a dynamic continuum medium in which the periodicity of stabilized heterogeneous potential and hierarchical structure changes continuously" brought about by We will work on the formation of the phase interface and the dynamics control of the ion diffusion between the phases.
Visit from Mr. Horikawa, a graduate of the class of 2018
June 7, 2022.
Mr. Horikawa, a 2018 alumnus (now at TDK Corporation), visited our lab.
He visited our laboratory and gave us a company profile of TDK Corporation and introduced his current duties and research environment. It has already been four years since he completed the course. He has become a splendid corporate warrior. I think it was very stimulating for the current students.
By the way, TDK is a great company.
We will work on joint development with TDK Corporation through the Nagano Prefecture's "Support Project for Building Value Chains in Local Communities.
Development of next-generation lithium-ion battery materials
https://www.pref.nagano.lg.jp/mono/happyou/202204press_value_chain.html
"Shinshu University NOW", the university's internal PR magazine
June 1, 2022
Our research was featured in "Shinshu University NOW," a public relations magazine of Shinshu University.
In May 2021, Shinshu Volta Co., Ltd. was established with Meijo Nano Carbon Co. The company aims to realize a high-energy-density lithium-ion battery that combines input/output characteristics, safety, and long-term reliability by incorporating carbon nanotubes. We provide batteries that meet diverse needs such as electric vehicles, electric motorcycles, flying mobility, electric construction machinery, and electric carts.
Featured in the magazine of FUJIFILM Wako Pure Chemical Corp.
June 1, 2022
An article on battery materials created by our research results was introduced in "Chem Growing," an information magazine of Fujifilm Wako Pure Chemicals Corp. We are now able to synthesize about 1 kg of active material in one synthesis. The dispersion is much more. We are now at the stage of reagents for research, but we will start mass production as we see the response in the market.
Advanced Industrial Theory
"Epson Engineering" begins
May 25, 2022
A press conference was held.
In order to develop engineers with new knowledge and skills, Shinshu University's Faculty of Engineering and the manufacturing industry in the prefecture will start an initiative to provide mutual learning opportunities. The program was planned in April 2021 and will start on September 27, 2022, with the support of many people involved. Epson managers and engineers will take the stage and give lectures on the structural principles of inkjet printers and projectors. By relating the lectures to the curriculum of the Department of Materials Chemistry and Chemical Engineering and the Department of Mechanical and System Engineering, students will understand how classroom learning at university is utilized in society, thereby supporting their studies. This is an effort toward the Shinshu-Nagano version of STEAM education and GX education.
Pror. Masayuki Nagamine has been appointed
June 1, 2022
Prof. Masayuki Nagamine joined our laboratory as a specially-appointed professor in the Fuculty of Engineering, Shinshu Univeristy.
He will work on battery material development research in Zettsu Laboratory, focusing on lithium-ion conductive oxide-based solid electrolytes and hetero-phase interface bonding. We will work together to find the ideal storage battery of the future.
Mr. Takumi Yana has been appointed
June 1, 2022
Takumi Yana joined our lab as a researcher.
He will work on battery material development research in Zettsu Laboratory, focusing on nanocarbon batteries.
Dr. Shiho Mukaida has been appointed
April 1, 2022
Dr. Shiho Mukaida (Mitsui Chemicals, Inc.) has joined our laboratory as a visiting associate professor in the Fuculty of Engineering, Shinshu Univeristy.
She will work on battery material development research in Zettsu Laboratory from the viewpoint of material and process informatics.
She will also give 15 lectures on an introduction of MI and AI for the graduate course students.
Lab Member Photos Updated
May 30, 2022
Photographs were taken with the members of the laboratory for the 2022 academic year. Two months have already passed since the start of the new academic year. The atmosphere in the laboratory has become more academic. The members are getting used to an environment where they speak English on a daily basis, and their English conversation skills are visibly improving.
Research staff: 9, Secretaries: 2
M2: 7, M1: 4, B4: 4
One more research student (foreign student) is scheduled to join.
We are becoming more lively.
The 3rd CREST Zettsu Team Meeting
May 9, 2022
The 3rd CREST Zettsu Team Meeting was held at the International Science Innovation Center, Nagano Engineering Campus, Shinshu University. The Zettsu Group, Nagao Group at JAIST, and Koyama Group at Shinshu University reported on their progress and discussed strategies for intra-team collaboration. The research that each team has been promoting independently is now developing in a non-linear manner through intra-team collaboration. All presentations are given in English. From Zettsu group, Prof. Zettsu, Project Assistant Prof. Eugenio, Mr Omar, Mr Chen, and Mr. Muraki made presentations. From Nagao group, Prof. Nagao, Mr Rahul, and Mr Zhaohan presented their research. From Koyama group, Prof. Koyama, Mr Attila, Mr Quang, and Assistant Prof. Hisama presented their research. Thank you all for your time.
First of all, this one year
Five B4 Students have joined the group
April 7, 2022
Five people, Mr. Imai, Ms. Kashiki, Mr. Narumi, Mr. Fuji, and Ms. Wakimoto, have been assigned as graduate students.
Mr. Otal, Mr. Omar, Ms. Mayeesha, Mr. Chen, and Ms. Ishii are in the same room. It feels good to be surrounded by an academic atmosphere. We got off to a great start.
The lab is led by students, such as enthusiastic guidance to juniors by M1 and planning of seminars by M2.
We, the faculty, have to keep up!
2021 graduation ceremony
March 23, 2022
Three second-year master's students (Adachi, Uchimura, Kondo) and six fourth-year undergraduate students (Amano, Kang, Kitada, Kubo, Nakata, Nishimura) have obtained a master's degree (engineering) or a bachelor's degree (engineering). bottom. Congratulations on your completion and graduation! !! !! !! !! !! You all did your best.
They have produced a lot of research results despite the restrictions caused by COVID-19. Based on their achievements, we have obtained large-scale joint research funds with JST-CREST, NEDO, and private companies. Using these results as a source of funds, we will thoroughly identify basic research on battery material technology academically.
Mr. Adachi, Mr. Uchimura, Mr. Kondo, and Mr. Kitada will be caught in the rough seas of society from now on, but there is nothing to fear. If you demonstrate the basic academic ability and the ability to apply it that you have acquired at Shinshu University, you have nothing to be afraid of!
I managed to avoid crying this year (laughs)
March 23, 2022
Congratulations to Mr. Adachi, Mr. Uchimura, and Mr. Kondo for receiving their master's degrees in engineering!
There is no reason you can't play an active part in the world.
Would you like to get a PhD as well?
March 23, 2022
B4 Mr. Kubo, congratulations on your bachelor's degree (engineering)!
High-output, high-durability TiNbO-based negative electrode material development has been successful. I wanted you to have another two years.
B4 Mr. Nakata gave a presentation at the conference
March 17, 2022
"Effect of carbon nanotube binder on charge / discharge cycle characteristics of porous silicon electrode. @ Electrochemical Society 89th
#Si negative electrode #CNT binder
March 7, 2022
The final results of the "Shinshu Regional Innovation Ecosystem through Industrial Implementation of Innovative Inorganic Crystalline Materials Technology" were reported at the final meeting.
Professor Zettsu took the podium as the core researcher of Research Project 3 and reported on the results of the five-year research. The final evaluation of the project was "S". Congratulations to everyone involved..
March 2, 2022
We held a research result report meeting for the Nagano Prefecture Coordination Activity Support Project.
Title: "Scale-up of positive electrode active material for nanocarbon batteries for aircraft electrification and battery evaluation"
Collaboration with companies in the prefecture for mass production
2022/2/22
Collaboration with companies for mass production of high-power batteries
#CNT binder #Lithium ion battery #
Collaboration with companies in the prefecture for mass production
2021/12/31
Collaboration with companies for mass production of high-power batteries
#CNT binder #Lithium ion battery
Collaborative research results with Prof. Denis Yu published in Electrochimica Acta
2021/12/22
Developed a new technology to improve the initial coulombic efficiency of the SiO negative electrode
#SiO negative electrode
M1 Yuu Muraki presents at the conference
2021/12/15
"Effect of cation ordering in lithium-based layered transition metal oxides on their ionization potentials"
@ 31st Japan MRS Annual Convention
#Theoretical Calculator (DFT) #Informatics
M1 Natsumi Kawabe presents at an academic conference
2021/12/2
"SW-CNT mixing effect on the robustness of the 3D electron conduction network formed in the SiOx electrode"
@ 15th Japan Flux Growth Research Presentation
#SiO negative electrode #CNT binder
Mass production of lithium cobalt oxide
2021/11/13
World's first. Manufacture of battery materials manufactured by the flux method. Manufactured in Shinshu Volta and sold by FUJIFILM Wako Pure Chemical Corporation.
#Positive active material #Lithium-ion battery
Sold by FUJIFILM Wako Pure Chemical Corporation
2021/11/13
World's first. Manufacture of battery materials produced by flux method. Manufactured at Volta Shinshu and sold by FUJIFILM Wako Pure Chemical Corporation.
#Positive active material #Lithium-ion battery