Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Shigekazu Yasuoka"'
Publikováno v:
Batteries, Vol 3, Iss 3, p 28 (2017)
The electrochemical performance and failure mechanisms of Ni/MH batteries made with a series of the Fe-substituted A2B7 superlattice alloys as the negative electrodes were investigated. The incorporation of Fe does not lead to improved cell capacity
Externí odkaz:
https://doaj.org/article/6891174f6d8f4b7ebf86da957e5c9309
Publikováno v:
Batteries, Vol 2, Iss 4, p 34 (2016)
The effects of Fe partially replacing Ni in a misch metal-based superlattice hydrogen absorbing alloy (HAA) were studied. Addition of Fe increases the lattice constants and abundance of the main Ce2Ni7 phase, decreases the NdNi3 phase abundance, and
Externí odkaz:
https://doaj.org/article/27bfd74c0e014a0588d5f5d841328387
Publikováno v:
Batteries, Vol 2, Iss 3, p 20 (2016)
The incorporation of a small amount of Co in the A2B7 superlattice hydrogen absorbing alloy (HAA) can benefit its electrochemical cycle life performance at both room temperature (RT) and 50 °C. The electrochemical properties of the Co-substituted A2
Externí odkaz:
https://doaj.org/article/b17bc46b8b354d4aad74be0505bd688c
Publikováno v:
International Journal of Hydrogen Energy. 42:22159-22166
The microstructural changes during hydrogen absorption–desorption cycles of an A2B7-based La-Mg-Ni alloy with a nominal composition of La1.5Mg0.5Ni7.0 were systematically investigated by powder X-ray diffraction (XRD), scanning electron microscopy
Publikováno v:
Journal of Power Sources. 346:56-62
The influence of Ce addition on the phase constitution, microstructure, hydrogen absorption/desorption properties and battery performances of newly developed rare earth (RE)-Mg-Ni hydrogen-absorbing superlattice alloys for negative electrode material
Autor:
Takashi Yamazaki, Shigekazu Yasuoka, Kyosuke Kishida, Kai Takuya, Haruyuki Inui, Jun Ishida, Kajiwara Takeshi, Shuuichi Doi
Publikováno v:
International Journal of Hydrogen Energy. 42:11574-11583
We investigated in detail the effect of incorporating Al in the crystal structure of rare earth–Mg–Ni hydrogen-absorbing alloys, which were developed as candidate materials for the metal hydride (MH) negative electrode in commercial Ni–MH batte
Publikováno v:
Journal of Alloys and Compounds. 660:407-415
The structural, gaseous phase hydrogen storage and electrochemical properties of a series of cobalt-substituted superlattice alloys were investigated as Part 1 of a two-part series. The phase abundances, lattice parameters and unit cell volumes of th
Autor:
Kai Takuya, Yuzo Imoto, Ito Takeshi, Takayuki Yano, Kazuta Takeno, Shigekazu Yasuoka, Doi Shuichi, Takeshi Yamazaki, Hirofumi Yanagawa
Publikováno v:
ECS Transactions. 66:19-27
Cells using highly conductive Co compound-coated Ni(OH)2 have good recovery characteristics after being connected to resistance. As a result of our investigation, by using synchrotron X-ray analysis (XAS, XRD), we can confirm the difference between c
Publikováno v:
Journal of Power Sources. 277:426-432
The structural, gaseous phase hydrogen storage, and electrochemical properties of a series of Mn-modified misch-metal based superlattice metal hydride alloys were investigated in part one of this two-part series of papers. X-ray diffraction analysis
Autor:
Kyosuke Kishida, Kai Takuya, Yuki Iwatake, Norihiko L. Okamoto, Haruyuki Inui, Jun Ishida, Shigekazu Yasuoka
Publikováno v:
International Journal of Hydrogen Energy. 40:3023-3034
The new crystal structure of the intermetallic compound (Nd,Mg)2(Ni,Al)7 has been determined by scanning transmission electron microscopy and electron diffraction. This crystal structure is different from that (either 2H or 3R) usually reported for t