Zobrazeno 1 - 10 of 25 pro vyhledávání: '"Motoyuki Hirooka"'
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Akademický článek
High Energy Density 'Bezel-less' Lithium-ion Battery Using Solvate Ionic Liquid-based Quasi-solid-state Electrolyte
Autor: Atsushi UNEMOTO, Motoyuki HIROOKA, Eiji SEKI, Jun KAWAJI, Takefumi OKUMURA
Publikováno v: Electrochemistry, Vol 88, Iss 4, Pp 321-324 (2020)
We propose a novel “bezel-less” lithium-ion battery (LIB) structure that enhances the volumetric energy density of LIB. This structure reduces the extra-space volume for seal and accumulation of current collectors, eliminating the bezel part by 1
Externí odkaz: https://doaj.org/article/e6412fd1cb374e969f448177c5bb3be8
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High Energy Density 'Bezel-less' Lithium-ion Battery Using Solvate Ionic Liquid-based Quasi-solid-state Electrolyte
Autor: Eiji Seki, Takefumi Okumura, Atsushi Unemoto, Jun Kawaji, Motoyuki Hirooka
Publikováno v: Electrochemistry, Vol 88, Iss 4, Pp 321-324 (2020)
We propose a novel “bezel-less” lithium-ion battery (LIB) structure that enhances the volumetric energy density of LIB. This structure reduces the extra-space volume for seal and accumulation of current collectors, eliminating the bezel part by 1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82f357784b3965485d4e7b83d77939b9
https://doi.org/10.5796/electrochemistry.19-00076
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4
Local Lithium-Ion Transport of a Ternary Sulfolane-Lithium Bis(trifluoromethanesulfonyl)amide-Carbonate Electrolyte: Experimental and First-Principles Molecular Dynamics Analysis toward Quasi-Solid-State Lithium-Ion Battery
Autor: Jun Kawaji, Atsushi Unemoto, Eiji Seki, Motoyuki Hirooka, Tamio Ikeshoji, Kazuhide Ueno, Kaoru Dokko, Masayoshi Watanabe, Takefumi Okumura
Publikováno v: Journal of The Electrochemical Society. 169:020534
The ion coordination and local ion transport of the ternary electrolyte containing sulfolane (SL), lithium bis(trifluoromethanesulfonyl)amide (LiTFSA), and a carbonate solvent were investigated by combining the electrochemical measurement and first-p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9da056bc8cb3303a676dc57b461b7953
https://doi.org/10.1149/1945-7111/ac5065
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Correlation between capacity loss and increase in polarization in 5 V lithium-insertion material of Li[Ni1/2Mn3/2]O4
Autor: Makoto Eguchi, Kingo Ariyoshi, Motoyuki Hirooka
Publikováno v: Solid State Ionics. 371:115752
The 5 V lithium-insertion material of Li[Ni1/2Mn3/2]O4 (LiNiMO) is a promising positive electrode material for lithium-ion batteries. Therefore, several approaches toward improving the cyclability of LiNiMO have been undertaken. To understand the ori
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b843dbfa8ad730dcc41104493cf5ba9a
https://doi.org/10.1016/j.ssi.2021.115752
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Non-Destructive Analysis of Crystal Structure Changes of Component Materials in Cylindrical Lithium-Ion Batteries at Elevated Temperature By Synchrotron Radiation x-Ray Diffraction Measurement
Autor: Masahiro Shikano, Atsushi Unemoto, Takefumi Okumura, Makoto Abe, Kentaro Kuratani, Ken Okada, Yoshiyasu Saito, Jun Kawaji, Motoyuki Hirooka, Hironori Kobayashi
Publikováno v: ECS Meeting Abstracts. :179-179
Temperature is one of the important factors for lithium-ion battery (LIB) which accelerates degradation of the performance. In many cases, degradation mechanism is studied by post-mortem analysis with destruction of degraded LIBs to obtain their comp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5d8585f629c7a4e03017634ad62eb295
https://doi.org/10.1149/ma2020-022179mtgabs
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Study of Lithium Ion Battery Manufacturing Process Using Quasi-Solid Electrolyte Sheet
Autor: Naoe Kazuaki, Kaga Yusuke, Eiji Seki, Motoyuki Hirooka, Etsuko Nishimura, Amasaki Shimpei
Publikováno v: ECS Meeting Abstracts. :327-327
Introduction In conventional lithium ion battery (LIB), organic electrolyte exhibiting a high volatility and flammability is applied. Therefore, energy storage system with the LIB possesses a lot of auxiliary components for ensuring its safety, which
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18e40d8cb6c0468c25b9c9617e5c6e17
https://doi.org/10.1149/ma2020-022327mtgabs
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Improvement of float charge durability for LiCoO2 electrodes under high voltage and storage temperature by suppressing O1-Phase transition
Autor: Kingo Ariyoshi, Masayuki Yamada, Takefumi Okumura, Tomohito Sekiya, Yoshitomo Omomo, Motoyuki Hirooka, Yusuke Yamada, Hideaki Katayama
Publikováno v: Journal of Power Sources. 463:228127
To produce electronic devices with high functionality and longer operating times, the energy density of lithium-ion batteries (LIBs) has to be increased while maintaining a long battery life and high reliability. The energy density of LIBs can be inc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c30ccd6e5bb1481237069ac20f9d71a6
https://doi.org/10.1016/j.jpowsour.2020.228127
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Examining the Long-Term Cyclabilities of Li[Ni_1/2Mn_3/2]O_4 and Li[Li_0.1Al_0.1Mn_1.8]O_4 Using a Full-Cell Configuration Including LTO-Counter Electrodes with Extra Capacity
Autor: Kingo Ariyoshi, Motoyuki Hirooka, Makoto Eguchi
Publikováno v: Journal of The Electrochemical Society. 167(6):060532
In this study, a novel cell configuration was developed for evaluating the cyclabilities of lithium insertion materials. In this cell, the Li[Li_1/3Ti_5/3]O_4 (LTO) counter electrode has excess capacity on both the charge and discharge sides (EQ-LTO)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d5ac95ce3540ac6e58cc473b8f75768
https://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_19457111-167-6-060532
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