Non-aqueous air battery and catalyst therefor
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsTohru Shiga, Hideyuki Nakano, Haruo Imagawa
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Abstract
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.
Claims20
A non-aqueous air battery comprising:
- a negative electrode comprising a material which absorbs and releases lithium ions:
- a positive electrode for which oxygen is a positive electrode active material:
- and
- a non-aqueous electrolyte disposed between the negative electrode and the positive electrode,
- wherein the positive electrode contains a donor-acceptor molecule in which an electron-donating donor (D) having a porphyrin ring is bonded to an electron-accepting acceptor (A) composed of a fullerene derivative, by a conductive spacer therebetween
- wherein the conductive spacer comprises a plurality of thiophene groups bonded to each other.
A positive electrode for a non-aqueous air battery, comprising:
- a conductive material;
- a catalyst to accelerate reduction of oxygen;
- and
- optionally, a binder;
- wherein
- the catalyst is a donor-acceptor molecule comprising:
- an electron-donating donor (D) having a porphyrin ring;
- an electron-accepting acceptor (A) composed of a fullerene derivative and
- a conductive spacer therebetween
- wherein the conductive spacer comprises a plurality of thiophene groups bonded to each other.
Dependencies are inferred from the claim text.