FUEL CELL, ELECTRONIC DEVICE, MOVABLE BODY, POWER GENERATION SYSTEM, AND COGENERATION SYSTEM
First Claim
1. An apparatus comprising a fuel cell for generating electric power by decomposing a fuel using an enzyme, wherein the fuel is a gelatinized starch.
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Abstract
A fuel cell which can directly extract electric power from a polysaccharide, such as starch, is provided. A fuel electrode is formed by immobilizing with an immobilizer, on an electrode comprised of, e.g., carbon, an enzyme responsible for decomposing a polysaccharide into monosaccharides, an enzyme responsible for decomposing the monosaccharide formed, a coenzyme (e.g., NAD− or NADP+) which forms a reductant due to the oxidation reaction in the monosaccharide decomposition process, a coenzyme oxidase (e.g., diaphorase) for oxidizing the reductant of the coenzyme (e.g., NADH or NADPH), and an electron mediator (e.g., ACNQ or vitamin K3) for receiving electrons generated due to the oxidation of the coenzyme from the coenzyme oxidase and delivering the electrons to the electrode. The fuel cell comprises the fuel electrode and the air electrode that sandwich an electrolyte layer.
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Citations
13 Claims
- 1. An apparatus comprising a fuel cell for generating electric power by decomposing a fuel using an enzyme, wherein the fuel is a gelatinized starch.
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10. An electronic device comprising a fuel cell, wherein the fuel cell generates electric power by decomposing a fuel using an enzyme, wherein the fuel is a gelatinized starch.
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11. A movable body comprising a fuel cell, wherein the fuel cell generates electric power by decomposing a fuel using an enzyme, wherein the fuel is a gelatinized starch.
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12. A power generation system comprising a fuel cell, wherein the fuel the cell generates electric power by decomposing a fuel using an enzyme, wherein the fuel is a gelatinized starch.
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13. A cogeneration system comprising a fuel cell, wherein the fuel cell generates electric power by decomposing a fuel using an enzyme, wherein the fuel is a gelatinized starch.
Specification