Zobrazeno 1 - 10
of 184
pro vyhledávání: '"Tomonari Takeuchi"'
Publikováno v:
Electrochemistry, Vol 89, Iss 3, Pp 239-243 (2021)
Amorphous VS4 (a-VS4) electrode material was synthesized by mechanical milling of crystalline VS4 (c-VS4). The columbic efficiency of the a-VS4 cell was significantly improved (ca. 86 %) at the first cycle as compared with the c-VS4 cell (ca. 77 %),
Externí odkaz:
https://doaj.org/article/5ed65dc63dd644238957078f0ffece80
Autor:
Yuki UMEMURA, Tomonari TAKEUCHI, Hikari SAKAEBE, Hisao KIUCHI, Toyonari YAJI, Misaki KATAYAMA
Publikováno v:
Electrochemistry, Vol 89, Iss 3, Pp 273-278 (2021)
Vanadium tetrasulfide (VS4) have been attracting attention as the promising positive electrode material for next generation batteries because of its high theoretical capacity (1196 mAh g−1). In this study, a typical element (i.e., Phosphorus) was i
Externí odkaz:
https://doaj.org/article/f355021357454d0eb1f4a57a21f9b585
Publikováno v:
Electrochemistry, Vol 89, Iss 2, Pp 167-175 (2021)
In order to develop high-energy batteries, it is important to understand the charge/discharge characteristics of the Li-metal negative electrode when operating with high Li utilization; these characteristics determine the practical capacity of the ne
Externí odkaz:
https://doaj.org/article/93e89de514834bdf8da1476542cd6e17
Publikováno v:
ECS Advances, Vol 2, Iss 1, p 010501 (2023)
To enhance the energy density of all-solid-state batteries, polysulfide positive electrodes have a great advantage of their high capacity. In this study, we developed Li _x VS _y ( x = 5–9, y = 4–6) comprised Li _2 S and LiVS _2 . Although Li _2
Externí odkaz:
https://doaj.org/article/9ba83eb266634238a8eb2df5aefb9f86
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-7 (2019)
Abstract Divalent and trivalent states of Fe ions are known to be stable in inorganic compounds. We focus a novel Li x FeS5 cathode, in which the Li content (x) changes from 2 to 10 by an electrochemical technique. As x increases from 2, a Pauli para
Externí odkaz:
https://doaj.org/article/6efb2585ffbf4464a461c257a314887a
Autor:
Satoshi HAGIWARA, Jun HARUYAMA, Minoru OTANI, Yuki UMEMURA, Tomonari TAKEUCHI, Hikari SAKAEBE
Publikováno v:
Electrochemistry, Vol 90, Iss 10, Pp 107002-107002 (2022)
The lithium/vanadium tetra sulfide (Li|VS4) battery can be considered a promising next-generation battery because of its high theoretical energy density, and it is expected to overcome the problems inherent in Li-S batteries. However, the charge/disc
Externí odkaz:
https://doaj.org/article/9e1176d3e07a4ff9a17ad2c79fea65db
Identification of Soluble Degradation Products in Lithium–Sulfur and Lithium-Metal Sulfide Batteries
Autor:
Fabian Horsthemke, Christoph Peschel, Kristina Kösters, Sascha Nowak, Kentaro Kuratani, Tomonari Takeuchi, Hitoshi Mikuriya, Florian Schmidt, Hikari Sakaebe, Stefan Kaskel, Tetsuya Osaka, Martin Winter, Hiroki Nara, Simon Wiemers-Meyer
Publikováno v:
Separations, Vol 9, Iss 3, p 57 (2022)
Most commercially available lithium ion battery systems and some of their possible successors, such as lithium (metal)-sulfur batteries, rely on liquid organic electrolytes. Since the electrolyte is in contact with both the negative and the positive
Externí odkaz:
https://doaj.org/article/6d97575ce1ea4821be98ff11b2074dd7
Publikováno v:
Frontiers in Energy Research, Vol 7 (2019)
High-energy-density batteries are actively sought after for next-generation electric vehicle (EV) applications, triggering the search for sulfur-based positive electrode materials with high capacity for extended driving range. One of the primary issu
Externí odkaz:
https://doaj.org/article/33359f2b0d4e48dfb265e7d009e09b4e
Autor:
Toyoki OKUMURA, Tomonari TAKEUCHI
Publikováno v:
Denki Kagaku. 90:336-341
Publikováno v:
Chemistry of Materials. 34:3948-3959