Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Atsushi Ohma"'
Autor:
Shreyas J. Honrao, Xin Yang, Balachandran Radhakrishnan, Shigemasa Kuwata, Hideyuki Komatsu, Atsushi Ohma, Maarten Sierhuis, John W. Lawson
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Abstract All-solid-state batteries with Li metal anode can address the safety issues surrounding traditional Li-ion batteries as well as the demand for higher energy densities. However, the development of solid electrolytes and protective anode coati
Externí odkaz:
https://doaj.org/article/37686c572ef540209ea878aa69aff0be
Autor:
Junxian Hou, Languang Lu, Li Wang, Atsushi Ohma, Dongsheng Ren, Xuning Feng, Yan Li, Yalun Li, Issei Ootani, Xuebing Han, Weining Ren, Xiangming He, Yoshiaki Nitta, Minggao Ouyang
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Concentrated electrolytes display superior thermal stability due to their non-flammability nature. Here, the authors show that LiN(SO2F)2-based concentrated electrolytes are incapable of solving the safety issues due to heat release during reaction b
Externí odkaz:
https://doaj.org/article/70da929b82ca495c846c6f041816f013
Publikováno v:
Journal of Thermal Science and Technology, Vol 6, Iss 1, Pp 154-163 (2011)
The structure of cathode catalyst layer (CCL) has strong relationship with the performance of polymer electrolyte fuel cells (PEFCs). We investigated the relationship between the catalyst layer structure and the cell performance experimentally. Multi
Externí odkaz:
https://doaj.org/article/35c472ec091c4eeeb91299f9bd3ed2c9
Autor:
Atsushi Ohma1 a-ohma@mail.nissan.co.jp, Kazuki Arihara1, Tetsuya Mashio1, Yoshiko Ito2, Yuri Nishino3, Atsuo Miyazawa3
Publikováno v:
International Journal of Electrochemical Science. May2024, Vol. 19 Issue 5, p1-6. 6p.
Autor:
Jianqiao Ren, Hewu Wang, Mengchao Yi, Xiangming He, Atsushi Ohma, Xiang Liu, Xuning Feng, Li Wang, Yu Wang, Minggao Ouyang, Dongsheng Ren, Yan Li, Gui-Liang Xu, Khalil Amine, Junxian Hou, Wensheng Huang, Yoshiaki Nitta, Languang Lu, Chu Zhengyu, Zihan Meng
Publikováno v:
Energy Storage Materials. 39:395-402
Layered Ni-rich LiNixMnyCo1-x-yO2 (NMC) materials are the most promising cathode materials for Li-ion batteries due to their favorable energy densities. However, the low thermal stability typically caused by detrimental oxygen release leads to signif
Publikováno v:
The Journal of Physical Chemistry C. 124:9243-9248
Herein, we investigate the formation of a cathode electrolyte interphase (CEI) by electrolyte oxidation on a LiNixM1–xO2 (x > 0.5; M, transition metal) layered oxide (Ni-rich) cathode and compare t...
Autor:
Xin Yang, Hideyuki Komatsu, Atsushi Ohma, Kuwata Shigemasa, John W. Lawson, Shreyas Honrao, Balachandran Radhakrishnan, Maarten Sierhuis
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
All-solid-state batteries with Li metal anode can address the safety issues surrounding traditional Li-ion batteries as well as the demand for higher energy densities. However, the development of solid electrolytes and protective anode coatings posse
Autor:
Xuning Feng, Languang Lu, Li Wang, Issei Ootani, Atsushi Ohma, Yoshiaki Nitta, Dongsheng Ren, Xuebing Han, Junxian Hou, Xiangming He, Yalun Li, Weining Ren, Minggao Ouyang, Yan Li
Publikováno v:
Nature Communications
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Concentrated electrolytes usually demonstrate good electrochemical performance and thermal stability, and are also supposed to be promising when it comes to improving the safety of lithium-ion batteries due to their low flammability. Here, we show th
Publikováno v:
Journal of Electroanalytical Chemistry. 790:27-39
A mathematical model focusing on local gas transport in a single carbon primary particle was developed by combining the classical agglomerate model with local gas transport in the vicinity of a Pt particle. Two local gas transport processes—gas tra
Autor:
Tetsuya Mashio, Yoshiko Ito, Shinichi Takahashi, Hajime Tohma, Atsuo Miyazawa, Yuri Nishino, Atsushi Ohma, Ayumi Ishihara, Junichi Shimanuki
Publikováno v:
Electrochimica Acta. 224:178-185
Optimizing the catalyst layer structure is one of the key issues for improving performance despite lower platinum loading. The catalyst ink, consisting of platinum-loaded carbon particles and ionomer dispersed in an aqueous solvent, is a key factor f