Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Yoshiyuki Kowada"'
Autor:
Yuki Orikasa, Yoshiyuki Kowada, Yoshiharu Uchimoto, Toshiaki Ohta, Akitoshi Hayashi, Kei Mitsuhara, Kohei Saito, Masahiro Tatsumisago, Minako Deguchi, Takashi Hakari
Publikováno v:
Chemistry of Materials. 29:4768-4774
All-solid-state batteries with sulfide solid electrolytes (SEs) are promising next-generation energy storage devices that are safe and have a cycle life and energy densities. To improve their electrochemical performances, we investigated the electroc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bca0552fea448aabde8402075aee6787
https://doi.org/10.1021/acs.chemmater.7b00551
https://doi.org/10.1021/acs.chemmater.7b00551
Autor:
Akitoshi Hayashi, Masahiro Tatsumisago, Toshiaki Ohta, Yoshiharu Uchimoto, Takuya Matsuyama, Yuki Orikasa, Minako Deguchi, Takuya Mori, Yoshiyuki Kowada, Kei Mitsuhara
Publikováno v:
Journal of Power Sources. 313:104-111
Electronic structure changes of sulfurs in amorphous TiS3 and MoS3 for positive electrodes of all-solid-state lithium batteries are examined by X-ray photoelectron spectroscopy (XPS) and the X-ray absorption near edge structure (XANES). The all-solid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d86a8b9f6fba7ed49078032731fbd77b
https://doi.org/10.1016/j.jpowsour.2016.02.044
https://doi.org/10.1016/j.jpowsour.2016.02.044
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 835:012041
All-solid-state batteries are expected as the next generation secondary batteries for their higher energy density, in-flammable properties, and so on. In order to develop these batteries, there are several problems to improve. One of them is the lowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10e264efbc98b1f1a1965da38b44c9b9
https://doi.org/10.1088/1757-899x/835/1/012041
https://doi.org/10.1088/1757-899x/835/1/012041
Autor:
Yoshiyuki Kowada, K. Ogasawara
Publikováno v:
Journal of Non-Crystalline Solids. 356:2454-2457
The electronic states of Nd3+ ions in phosphate glasses were calculated by the relativistic discrete-variational multi-electron (DVME) method. This method is a configuration-interaction (CI) calculation program using the molecular orbitals obtained b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78904ef75cce570b18b1f6f61fd404c7
https://doi.org/10.1016/j.jnoncrysol.2010.05.098
https://doi.org/10.1016/j.jnoncrysol.2010.05.098
Publikováno v:
Journal of the Physical Society of Japan. 79:65-68
The electronic state of the Li ion in the Li 7 P 3 S 11 crystal, which is one of the Li ion conductors, was calculated by using the DV-Xα method. The model clusters were constructed from the crystal structure of Li 7 P 3 S 11 . The movements of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52e5016a308cb13f468fa28288274f0a
https://doi.org/10.1143/jpsjs.79sa.65
https://doi.org/10.1143/jpsjs.79sa.65
Autor:
Naoki Noma, Yoshiyuki Kowada
Publikováno v:
Journal of Sol-Gel Science and Technology. 52(1):166-169
Electronic state and optical absorption spectra of metal alkoxides stabilized with β-diketones, which had various substituents, were calculated by the first principle molecular orbital methods. The characteristics of the optical absorption and the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e25baef9339708aa044b3e0d716657d9
http://hdl.handle.net/10132/3421
http://hdl.handle.net/10132/3421
Publikováno v:
Solid State Ionics. 180:462-466
Electronic states of Li ions during the ionic jumps in the Li3N crystal was discussed on the basis of the first principle molecular orbital calculations. The movements of the Li ions were simulated by several model clusters with different positions o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28413aaa81770741897a19eff2079f44
https://doi.org/10.1016/j.ssi.2008.12.037
https://doi.org/10.1016/j.ssi.2008.12.037
Publikováno v:
Journal of Non-Crystalline Solids. 354:360-364
Electronic states of the sulfide-based lithium ion conducting glasses were calculated by the DV-Xα cluster method. The cluster models were constructed by the coordination number reported by experimental methods and the bond length estimated from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd50af31e99777509f045769ada5711f
https://doi.org/10.1016/j.jnoncrysol.2007.07.085
https://doi.org/10.1016/j.jnoncrysol.2007.07.085
Publikováno v:
Journal of Sol-Gel Science and Technology. 33:175-185
Gel films with various pH indicators were prepared by the sol-gel method without catalysts. The obtained gel films showed good response for various pH solutions as optical pH sensors and no leaching of the indicators was observed. The feature of abso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18d43ca9c1132ccac0a02f49c7884881
https://doi.org/10.1007/s10971-005-5612-7
https://doi.org/10.1007/s10971-005-5612-7
Autor:
Hiroki Adachi, M. Okamoto, Tsutomu Minami, Yoshiyuki Kowada, Masahiro Tatsumisago, Isao Tanaka
Publikováno v:
ResearcherID
The electronic state of AgI-based superionic conducting glasses was calculated by the DV-Xα cluster method. We have adopted several model clusters with different conduction paths of Ag ions. The electronic state of the similar clusters using Na ions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ed864c14c1cc4f2254ed7a2f5e634ce
http://hdl.handle.net/2433/5154
http://hdl.handle.net/2433/5154