Electric double layer capacitor,申请号US19980217592-传众专利搜索

Electric double layer capacitor

申请公布号：US6222720(B1)

申请号：US19980217592

申请日期：1998.12.21

申请公布日期：2001.04.24

申请人：

ASAHI GLASS COMPANY LTD.

发明人：AOKI TOMONORI;INOUE MAKOTO;IKEDA KATSUJI;HOZUMI YOSHIHIRO;HIRATSUKA KAZUYA;SUHARA MANABU;KAWASATO TAKESHI

分类号：H01G9/00;H01G9/155;(IPC1-7):H01G1/017

主分类号：H01G9/00

摘要：An electric double layer capacitor comprises a first electrode 31 comprising a belt-like electricity collecting material 31a having both surfaces on which electrode layers 31b, 31c are formed leaving belt-like portions in a side of the belt-like electricity collecting material 31a along its longitudinal direction, a second electrode 32 having the same structure as the first electrode 31, belt-like separators 33a, 33b to electrically insulate the first and second electrodes 31, 32, a post-like winding core 40 on which the first and second electrodes 31, 32 and the separators 33a, 33b are wound to thereby form a cylindrically wound element 50, a first electricity collecting plate 72 in contact with the belt-like portion 31ax, a second electricity collecting plate 62 in contact with the belt-like portion 31ax, wherein the belt-like portions 31ax, 32ax are located at opposing positions in the wound element 50, both ends of the winding core 40 are respectively in contact with the first and second electricity collecting plates 72, 62 to determine the relative positions in axial directions of the first and second electricity collecting plates 72, 62, and the electricity collecting plates 72, 62 are electrically insulated. In the capacitor, tab-like electricity collecting leads are not required, manufacture is easy to shorten a time for manufacturing, and the capacity density per volume is high.