Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Akio Mitsui"'
Autor:
Zempachi Ogumi, Koji Ohara, Yohei Onodera, Miwa Murakami, Shinya Shiotani, Keiji Shimoda, Yoshiharu Uchimoto, Hajime Arai, Akio Mitsui
Publikováno v:
The Journal of Physical Chemistry C. 119:24248-24254
To examine the dynamical origin of high ionic conductivity of (Li2S)70(P2S5)30 glass ceramic obtained by annealing (Li2S)70(P2S5)30 glass, we applied 6/7Li and 31P solid-state NMR. NMR line shapes and spin–lattice relaxation times (T1) were measure
Publikováno v:
Journal of Power Sources. 271:60-64
The mixed cation system, Li 10 (Ge 1− x M x )P 2 S 12 (M = Si, Sn), was synthesized and the ionic conductivities of the resulting solid solutions were determined. The Si–Ge and Ge–Sn systems provided single phase solid solutions for the composi
Autor:
Koji Kitada, Yoshiharu Uchimoto, Haruno Murayama, Zempachi Ogumi, Katsutoshi Fukuda, Akio Mitsui, Koji Ohara, Eiichiro Matsubara, Hajime Arai
Publikováno v:
The Journal of Physical Chemistry C. 118:20750-20755
We developed spectroscopic X-ray diffraction (XRD) analysis to visualize electrochemical reactions occurring at various locations in Li-ion batteries (LIBs). Continuous irradiation with monochromatic X-rays in an energy region using a confocal setup
Autor:
Masaaki Hirayama, Hideki Iba, Ryoji Kanno, Satoshi Hori, Akio Mitsui, Masao Yonemura, Yuki Kato, Kota Suzuki, Toshiya Saito
Publikováno v:
Nature Energy. 1
Compared with lithium-ion batteries with liquid electrolytes, all-solid-state batteries offer an attractive option owing to their potential in improving the safety and achieving both high power and high energy densities. Despite extensive research ef
Autor:
Yohei Onodera, Yuki Orikasa, Hajime Arai, Yukinori Koyama, Shinya Shiotani, Miwa Murakami, Akio Mitsui, Masahiro Mori, Toshiharu Fukunaga, Zempachi Ogumi, Yoshiharu Uchimoto, Koji Ohara, Kazuhiro Mori, Keiji Shimoda
Publikováno v:
Scientific Reports.
The atomic and electronic structures of binary Li2S-P2S5 glasses used as solid electrolytes are modeled by a combination of density functional theory (DFT) and reverse Monte Carlo (RMC) simulation using synchrotron X-ray diffraction, neutron diffract
Autor:
Masaaki Hirayama, Koji Kawamoto, Kenji Homma, Yuki Kato, Takashi Kamiyama, Masao Yonemura, Noriaki Kamaya, Yuichiro Yamakawa, Shigenori Hama, Ryoji Kanno, Akio Mitsui
Publikováno v:
Nature Materials. 10:682-686
Batteries are a key technology in modern society. They are used to power electric and hybrid electric vehicles and to store wind and solar energy in smart grids. Electrochemical devices with high energy and power densities can currently be powered on
Publikováno v:
ECS Transactions. 7:2417-2425
The structural phase transition behavior of La1-x-yCaxSryCrO3, which can be regarded as promising material for interconnector of SOFC due to high sintering property, has been investigated by differential scanning calorimetry. Temperature and variatio
Autor:
Koji, Ohara, Akio, Mitsui, Masahiro, Mori, Yohei, Onodera, Shinya, Shiotani, Yukinori, Koyama, Yuki, Orikasa, Miwa, Murakami, Keiji, Shimoda, Kazuhiro, Mori, Toshiharu, Fukunaga, Hajime, Arai, Yoshiharu, Uchimoto, Zempachi, Ogumi
Publikováno v:
Scientific Reports
The atomic and electronic structures of binary Li2S-P2S5 glasses used as solid electrolytes are modeled by a combination of density functional theory (DFT) and reverse Monte Carlo (RMC) simulation using synchrotron X-ray diffraction, neutron diffract
Autor:
Masahiro Mori, Koji Ohara, Akio Mitsui, Yukinori Koyama, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi
Publikováno v:
ECS Meeting Abstracts. :396-396
Introduction Li2S-P2S5 glass has been attracted attention as the solid electrolyte for lithium ion battery because of its high ionic conductivity and wide electrochemical potential window. It is known that the ratio of Li2S and P2S5 affects Li-ion co
Autor:
Akio Mitsui, Koji Ohara, Masahiro Mori, Yohei Onodera, Yukinori Koyama, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi
Publikováno v:
ECS Meeting Abstracts. :393-393
Introduction and Result Batteries are used to power electric and hybrid electric vehicles, and to store a wind and solar energy in smart grids. The research and development of electrical vehicles has been an important subject. All solid batteries and