Double layer capacitor
AssigneeNEC Tokin Corporation
InventorsKiyoshi Kawaguchi, Nobuo Seko, Tatsuo Itoh, Takashi Nagai, Yoshiaki Okita, Hiroyasu Yamamoto
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Abstract
A high reliability and low power consumption anti-lock brake system is disclosed. The two pilot valves are controlled so as not to be energized concurrently. The secondary battery of the anti-lock brake system is charged by a power supply and/or a generator. An electric double layer capacitor having a housing made of functionally graded aluminum ceramic material is used as the secondary battery.
Claims4
An electric double layer capacitor comprising (A) a laminated capacitor cell made by laminating a plurality of capacitor unit cells having two activated carbon powder electrodes and sulfuric acid solution, (B) a housing for housing said laminated capacitor cell, and (C) at least one mounting portion for mounting said electric double layer capacitor on another device, characterized in that:
- said housing is made of functionally graded aluminum—ceramic material;
- and
- said mounting portion and said housing being formed in one piece.
Dependencies are inferred from the claim text.