| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such problems that a fuel cell has high energy density but low output density, while a secondary battery has high output density but low energy density and also limited electric capacity, one of the reason for the problems being increased thickness of an electrode. <P>SOLUTION: A fuel cell includes: a positive electrode obtained by electrolytic deposition of manganese dioxide on carbon fibers; and a negative electrode including a hydrogen absorbing alloy. The fuel cell is provided with a hydrogen storage chamber and an oxygen storage chamber which directly and independently storage hydrogen gas produced at the negative electrode and oxygen gas produced at the positive electrode, respectively, and thereby there are provided a positive electrode for a fuel cell which is excellent in energy utilization efficiency, energy density and load followability while using a relatively small electrode, and a fuel cell including the positive electrode. <P>COPYRIGHT: (C)2013,JPO&INPIT |
