| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric double layer capacitor which can suppress a decline in a capacity maintenance rate. SOLUTION: The electric double layer capacitor 1 comprises lower and upper storage containers 2 and 3, packing 4, electrolyte 5, a pair of current collectors 6 and 7, a pair of electrodes 8 and 9, and separator 10. The electrodes 8 and 9 each contain porous carbon, a conduction agent, an aggregate, and a binder. The aggregate 21 consists of aggregated metal or metal compound fine particles, with a hole 22 formed between the fine particles 23. COPYRIGHT: (C)2007,JPO&INPIT
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