Polarized electrode for electric double-layer condenser, and electric double-layer condenser manufactured using the same, and process for manufacturing electrode sheet for electric double-layer condenser, and laminating apparatus
AssigneesHonda Motor Co., Ltd., Daido Metal Company Ltd.
InventorsManabu Iwaida, Shigeki Oyama, Kenichi Murakami, Kouki Ozaki, Masanori Tsutsui
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Abstract
A polarized electrode for an electric double-layer condenser, which has a structure for preventing the damage of the end portion of the electrolyte belonging to the collecting foil, in the process for manufacturing the electric double-layer condenser, and an electric double-layer condenser using the polarized electrode.
Claims15
A polarized electrode for a laminated type electric double-layer condenser, comprising:
- a band-shaped electrode member including an electrode:
- prepared by dispersing an active substance including mainly active carbon and a conductive filler through a binder and by forming them into a sheet shape;
- and adhered to at least one face of a collecting foil having a conductivity, and
- a separator having a shape corresponding to that of the electrode member are alternately laminated and spirally wound up, wherein
- the end portion of the electrode is spaced, at the two axial end portions of the laminated type polarized electrode, at a distance of 0.1% or more of the width of the electrode member from the end portion of the electrode member.
A polarized electrode for a laminated type electric double-layer condenser, comprising:
- a band-shaped electrode member including an electrode:
- prepared by dispersing an active substance including mainly active carbon and a conductive filler through a binder and by forming them into a sheet shape;
- adhered to at least one face of a collecting foil having a conductivity;
- and cut to a desired size, and
- a separator having a shape corresponding to that of the electrode member are alternately laminated into a laminate, wherein
- the end portion of the electrode is spaced, at the two axial end portions of the laminated type polarized electrode, at a distance of 0.1% or more of the width of the electrode member from the end portion of the electrode member.
A polarized electrode for an electric double-layer condenser, comprising:
- a collecting foil having a conductivity, and
- an electrode prepared by dispersing an active substance including mainly active carbon and a conductive filler through a binder and by forming them into a sheet shape is adhered through an adhesive layer to at least one face of the collecting foil, wherein
- the collecting foil has an etched portion subjected to an etching treatment, at the portion, to which the electrode is adhered, and in a vicinity thereof, wherein
- the etched portion is formed to have a width larger than that of the electrode and smaller than that of the adhesive layer, and wherein
- the adhesive layer has a width set larger by about 0.3 to 10% than that of the electrode member.
A process for manufacturing an electrode sheet for an electric double-layer condenser, comprising:
- a laminating step of manufacturing long sheet-shaped electrodes having a-predetermined thickness of a shaping material containing carbon powder, a conductive assistant and a binder, and then adhering the sheet-shaped electrodes to the surfaces of a long conductive foil through a conductive adhesive, wherein
- the laminating step is performed by adhering the sheet-shaped electrodes while applying the conductive adhesive with a thickness of 10 microns or less to the surfaces of the conductive foil by using a gravure coater.
A laminating apparatus for manufacturing an electrode sheet for an electric double-layer condenser by adhering sheet-shaped electrodes, as formed of a shaping material containing carbon powder, a conductive assistant and a binder into a long sheet shape of a predetermined thickness, to the surfaces of a long conductive foil through a conductive adhesive, comprising:
- a gravure coater, and
- adhesive applying section for applying the conductive adhesive with a thickness of 10 microns or less to the surfaces of the conductive foil by using the gravure coater.
Dependencies are inferred from the claim text.