| 摘要 |
Disclosure is concerned with a small type fuel cell for a power source of portable electronic appliances, particularly to a fuel cell using liquid fuel such as methanol etc., an electronic appliance, and a method of doing business. The fuel cell characterized by having a circulating container for supplying liquid fuel of a predetermined concentration to the fuel cell and for recovering and storing the liquid fuel discharged from the fuel cell, wherein the circulating container is replaceable.
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