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US 9,637,825 B2Granted
High-temperature long lifespan electrode for electric dual layer capacitor and method of manufacturing the same
AssigneeKorea Jcc Co., Ltd.
InventorsDal Woo Shin, Mun Soo Lee, Jin Sik Shin
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Abstract
A high-temperature long lifespan electrode includes a through type aluminum sheet, a plurality of first hollow protrusion members protruded to one side of the through type aluminum sheet, a plurality of second hollow protrusion members protruded to the other side of the through type aluminum sheet, a metal protection layer coated on the through type aluminum sheet, the plurality of first hollow protrusion members, a first active material sheet bonded to one surface of the through type aluminum sheet, and a second active material sheet bonded to the other surface of the second surface of the through type aluminum sheet.
Claims17
A high-temperature long lifespan electrode for an electric double layer capacitor, comprising:
- a through type aluminum sheet configured to have a plurality of through holes formed in the through type aluminum sheet so that the through holes are spaced apart from one another;
- a plurality of first hollow protrusion members extended from the through type aluminum sheet in such a way as to communicate with the through holes and protruded to a first side of the through type aluminum sheet;
- a plurality of second hollow protrusion members spaced apart from the plurality of first hollow protrusion members, extended from the through type aluminum sheet in such a way as to communicate with the through holes, and protruded to a second side of the through type aluminum sheet;
- a metal protection layer coated on the through type aluminum sheet, the plurality of first hollow protrusion members, and the plurality of second hollow protrusion members;
- a first active material sheet placed on a first surface of the through type aluminum sheet and bonded to the metal protection layer so that the plurality of first hollow protrusion members is buried;
- and
- a second active material sheet placed on a second surface of the through type aluminum sheet and bonded to the metal protection layer so that so that the plurality of second hollow protrusion members is buried and the second active material sheet is connected to the first active material sheet through the plurality of first hollow protrusion members and the plurality of second hollow protrusion members,
- wherein each of the plurality of first hollow protrusion members and the plurality of second hollow protrusion members is formed by perforating the through type aluminum sheet by applying pressure on the first side or second side of the through type aluminum sheet using one of a cylindrical pillar member, an elliptical pillar member, and a square pillar member each having a pointed tip so that the plurality of through holes is formed in the through type aluminum sheet,
- the plurality of first hollow protrusion members and the plurality of second hollow protrusion members are extended and protruded from the through type aluminum sheet in such a way as to respectively communicate with the plurality of through holes, and
- each of the through holes has one of a cylindrical shape, an oval, and a square shape by one of the cylindrical pillar member, the elliptical pillar member, and the square pillar member.
7 more elements
A method of manufacturing a high-temperature long lifespan electrode for an electric double layer capacitor, the method comprising:
- preparing a through type aluminum sheet configured to have a plurality of first hollow protrusion members and a plurality of second hollow protrusion members respectively formed in a first surface and second surface of the through type aluminum sheet and to have a metal protection layer formed on an entire surface by winding the through type aluminum sheet on a first roller;
- preparing a first active material sheet by winding the first active material sheet on a second roller;
- preparing a second active material sheet by winding the second active material sheet on a third roller;
- placing the first active material sheet on the first surface of the through type aluminum sheet and the second active material sheet on the second surface of the through type aluminum sheet and transferring the through type aluminum sheet and the first active material sheet and the second active material sheet to a press unit;
- and
- placing the first active material sheet and the second active material sheet on the first surface and second surface of the through type aluminum sheet, respectively, bonding the first active material sheet and the second active material sheet to the metal protection layer, and simultaneously pressurizing the first active material sheet and the second active material sheet using the press unit so that the first active material sheet and the second active material sheet are connected through the plurality of first hollow protrusion members and the plurality of second hollow protrusion members,
- wherein preparing the through type aluminum sheet comprises:
- forming the plurality of first hollow protrusion members and the plurality of second hollow protrusion members on the first surface and second surface of the through type aluminum sheet, respectively;
- forming the metal protection layer by performing electrolytic plating or electroless plating on the through type aluminum sheet in which the plurality of first hollow protrusion members and the plurality of second hollow protrusion members have been formed;
- and
- winding the through type aluminum sheet on the first roller after the metal protection layer is formed.
8 more elements
Dependencies are inferred from the claim text.