ELECTRIC DOUBLE-LAYER CAPACITOR AND ELECTROLYTE - ISUZU ADVANCED ENGINEERING CEN

Title:

ELECTRIC DOUBLE-LAYER CAPACITOR AND ELECTROLYTE

Document Type and Number:

Japanese Patent JPH11121283

Kind Code:

A

Abstract:

To enable increasing the capacitance of a capacitor using an electrolyte of reducing ion electrolyte, in an electric double-layer capacitor.

An electric double-layer capacitor is provided with a carbon electrode and an electrolyte, and a reducing ion electrolyte wherein ammonium iodide is used, is used as the electrolyte. Also, sodium sulfide, potassium sulfide, lithium sulfide, sodium iodide or potassium iodide is used. The density of the reducing ion electrolyte is set at 0.1 mol/l (liter) or higher, and the active carbon having a specific surface area of about 2,000 m2/g is used as the material of the carbon electrode. In addition, although the reducing ion density has been obtained using a single material, but a plurality of materials may also be used together.

Inventors:

TANIGUCHI MASAHIKO
TAKEDA TOSHIKAZU
IMAI HIROYUKI
SHIBUYA HIDEKI

Application Number:

JP28166897A

Publication Date:

April 30, 1999

Filing Date:

October 15, 1997

Export Citation:

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Assignee:

ISUZU ADVANCED ENGINEERING CEN

International Classes:

H01G11/54; H01G11/42; H01G11/58; H01G11/64; (IPC1-7): H01G9/038

Attorney, Agent or Firm:

Yoshiaki Numagata (3 outside)

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