scispace - formally typeset
Search or ask a question

Showing papers on "Supercapacitor published in 1993"


01 Jan 1993
TL;DR: In this article, the conference was divided into the following sections: supercapacitors, nickel-metal hydride batteries, lithium polymer batteries; lithium/carbon batteries; cathode materials; and lithium batteries.
Abstract: This conference was divided into the following sections: supercapacitors; nickel-metal hydride batteries; lithium polymer batteries; lithium/carbon batteries; cathode materials; and lithium batteries. Separate abstracts were prepared for the 46 papers of this conference.

21 citations


Journal ArticleDOI
TL;DR: In this article, an electric double-layer capacitor with large capacitance, 1000 F at 5.5 V, has been developed using activated carbon/carbon composite as polarizable electrodes and sulfuric acid as the electrolyte.
Abstract: An electric double-layer capacitor with large capacitance, 1000 F at 5.5 V, has been developed. It uses activated carbon/carbon (AC/C) composite as the polarizable electrodes and sulfuric acid as the electrolyte. The AC/C composite was synthesized through a simple process, namely, a cured mixture of activated carbon and phenol-formaldehyde resin was carbonized. The AC/C composite has a large surface area, 1300 mg, and low resistivity, 0.01 Omega -cm. Two kinds of pores exist in the AC/C composite: macropores with submicrometer diameters, and micropores with below 4-nm diameter. The micropores are impregnated with the sulfuric acid aqueous solution through the macropores open to the outer surface. The electric double-layer capacitance per unit volume for the AC/C composite in sulfuric acid is greater than that for activated carbon powder as a raw material. The capacitor is expected to be used as an energy storage device and a supplementary power source. >

19 citations


Patent
04 May 1993
TL;DR: An electrode separator for electrochemical energy storage devices, such as a high energy density capacitor incorporating a variety of carbon foam electrodes, is derived from an aquagel of resorcinol-formaldehyde and related polymers and containing ionically conducting electrolyte in the pores thereof as mentioned in this paper.
Abstract: An electrode separator for electrochemical energy storage devices, such as a high energy density capacitor incorporating a variety of carbon foam electrodes. The separator is derived from an aquagel of resorcinol-formaldehyde and related polymers and containing ionically conducting electrolyte in the pores thereof.

13 citations