Hideki Kitao
Sanyo
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Publication
Featured researches published by Hideki Kitao.
Electrochemical and Solid State Letters | 2005
Hideki Kitao; Toyoki Fujihara; Kazuhisa Takeda; Naoya Nakanishi; Toshiyuki Nohma
To improve the storage performance of Li-Mn spinel at high temperatures, we investigated a mixture of Li-Mn spinel (Li 1 . 1 Mn 1 . 9 O 4 ) and Li-Ni-Co-Mn oxide (LiNi 0 . 4 Co 0 . 3 Mn 0 . 3 O 2 ) as a positive electrode material. We found that a battery using such a mixture as a positive electrode material showed better storage characteristics at 45°C for 30 days than batteries using both a single material Li-Mn spinel and a single material Li-Ni-Co-Mn oxide. This improved storage performance resulted from the suppression of capacity loss of LiMn-spinel in the mixture. We compared the differences in Li-Mn spinel to clarify the reasons for its improved storage performance in the mixture and found two changes during charging in the potential and lattice constant of Li-Mn spinel in the mixture that were different from those of single material Li-Mn spinel. In single material, changes in potential and lattice constants of Li-Mn spinel showed two-step change when charged, while Li-Mn spinel in a mixture showed continuous change.
Archive | 2004
Toyoki Fujiwara; Takaaki Ikemachi; Hideki Kitao; Toshiyuki Noma; Koichi Sato; 広一 佐藤; 英樹 北尾; 隆明 池町; 俊之 能間; 豊樹 藤原
Archive | 2004
Hideki Kitao; Toyoki Fujihara; Kouichi Satoh; Takaaki Ikemachi; Toshiyuki Nohma
Archive | 2004
Yasunori Baba; Takaaki Ikemachi; Hideki Kitao; Naoya Nakanishi; Toshiyuki Noma; 直哉 中西; 英樹 北尾; 隆明 池町; 俊之 能間; 泰憲 馬場
Archive | 2004
Yasunori Baba; Takaaki Ikemachi; Hideki Kitao; Naoya Nakanishi; Toshiyuki Noma; 直哉 中西; 英樹 北尾; 隆明 池町; 俊之 能間; 泰憲 馬場
Archive | 2006
Hideki Kitao; Yoshinori Kida; Toyoki Fujihara
Archive | 2006
Hideki Kitao; Toyoki Fujihara; Naoya Nakanishi; Toshiyuki Nohma
Archive | 2005
Toyoki Fujiwara; Hideki Kitao; Naoya Nakanishi; Toshiyuki Noma; 直哉 中西; 英樹 北尾; 俊之 能間; 豊樹 藤原
Archive | 2004
Hiroyuki Akita; Yasunori Baba; Toyoki Fujiwara; Atsuhiro Funabashi; Hideki Kitao; Naoya Nakanishi; Toshiyuki Noma; 直哉 中西; 英樹 北尾; 宏之 秋田; 俊之 能間; 淳浩 船橋; 豊樹 藤原; 泰憲 馬場
Meeting Abstracts | 2006
Hiroyuki Akita; Koji Hasumi; Hideki Kitao; Yoshinori Kida; Shin Fujitani