公开(公告)号：US20130308249A1

公开(公告)日：2013-11-21

申请号：US13834213

申请日：2013-03-15

Applicant: Seiko Instruments Inc.

Inventor： Tsuneaki TAMACHI ,  Ryo SATO ,  Kazumi TANAKA ,  Kensuke TAHARA ,  Tadahito SUZUKI ,  Akira SATO

IPC: H01G11/22 ,  H01G9/04 ,  H01G9/145

CPC classification number: H01G11/22 ,  H01G9/02 ,  H01G9/04 ,  H01G9/145 ,  H01G11/52 ,  H01M2/1613 ,  H01M4/625 ,  H01M10/04 ,  Y02E60/13

Abstract: An electric double layer capacitor with a low resistance value is disclosed. The electric double layer capacitor includes an electrochemical device in the inside of a housing container and capable of achieving charge and discharge via external terminals, wherein the electrochemical device includes a pair of electrodes, a separator disposed between the pair of electrodes, and an electrolytic solution with which the pair of electrodes and the separator are impregnated; when a volume between the pair of electrodes is designated as Ve, and a volume of a void in an inter-electrode part of the separator disposed between the pair of electrodes is designated as Se, an inter-electrode part void ratio Re is defined as Re=Se/Ve×100 (%); and when a thickness of the inter-electrode part is designated as L2 (μm), and a separator evaluation index Ie is defined as Ie=L2/Re (μm/%), a relation of Ie≦1.0 (μm/%) is satisfied.

Abstract translation: 公开了具有低电阻值的双电层电容器。 双电层电容器包括在容纳容器内部的电化学装置，能够通过外部端子实现充放电，其中电化学装置包括一对电极，设置在一对电极之间的隔板和电解液 一对电极和隔板被浸渍; 当一对电极之间的体积被指定为Ve，并且设置在一对电极之间的隔膜的电极间部分中的空隙体积被指定为Se时，电极间空隙率Re被定义为 Re = Se / Ve×100（％）; 并且当电极间部分的厚度被指定为L2（母）时，隔膜评价指标​​Ie被定义为Ie = L2 / Re（mum /％），Ie @ 1.0（mum /％）的关系为 满意。