Kabushiki Kaisha Toyota Chuo Kenkyusho

Haruo Imagawa

Naoki Takahashi

Akira Morikawa

Akihiko Suda

Toshiyuki Tanaka

Takafumi Yamauchi

Yasuki Hirota

Miho Hatanaka

Kiyoshi Yamazaki

Hideyuki Nakano

Tohru Shiga

Hirozumi Azuma

Norihiko Setoyama

Seiji Yamamoto

Shogo Sayama

Seiichi Kunitomi

Naoki Baba

Kazuto Ogasawara

Takashi Kuzuya

Masatoshi Sakai

Akira Shichi

Yoshihiko Itoh

A non-aqueous air battery of the present invention includes a negative electrode for which a material which absorbs and releases lithium ions is used as a negative electrode active material, a positive electrode for which oxygen is used as a positive electrode active material, and a non-aqueous electrolyte disposed between the negative electrode and the positive electrode. The positive electrode contains a donor-acceptor molecule in which an electron-donating donor (D) having a porphyrin ring is connected to an electron-accepting acceptor (A) composed of a fullerene derivative, with a conductive spacer therebetween. An example of the donor-acceptor molecule is triphenylporphyrinyl bithienyl N-methylpyrrolidino[60]fullerene. 

Non-aqueous air battery and catalyst therefor

A lithium-air battery includes a lithium negative electrode, a positive electrode including a catalyst containing gold, and a non-aqueous electrolyte interposed between the positive electrode and the lithium negative electrode. The catalyst includes gold supported on a cerium-containing oxide, such as a cerium-zirconium compound oxide or a cerium-aluminum compound oxide. The amount of catalyst of the positive electrode is in the range of 0.01 to 50 weight percent relative to the total weight of the positive electrode.

Lithium-air battery

A composite oxide includes agglomerated particles which have an average particle diameter of 20 &#x3bc;m or less, which are composed of a plurality of metallic element oxides being in form of fine particles having an average diameter of 50 nm or less, and which have a surface and an inner portion whose metallic element distributions differ with each other. The characteristics of the respective metallic elements are exhibited maximally. Hence, it is extremely useful as a support for an exhaust gas purifying catalyst. The catalyst exhibits the activities which degrade less even after it is subjected to a sever durability, is good in terms of the heat and sulfur-poisoning resistance, and can efficiently purify the harmful components in exhaust gases. Moreover, it is possible to produce such a composite oxide and catalyst easily and stably by production processes disclosed herein.

Composite oxide, process for producing the same, catalyst for purifying exhaust gas, and process for producing the same

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Nagoya, Japan

Haruo Imagawa