Matching the nanoporous carbon electrodes and organic electrolytes in double layer capacitors

被引：22

作者：

Maletin, Y ^{[1
]}

Novak, P

Shembel, E

Izotov, V

Strizhakova, N

Mironova, A

Danilin, V

Podmogilny, S

机构：

[1] Ener1 Inc, Ft Lauderdale, FL USA

[2] Natl Tech Univ Ukraine KPI, Kiev, Ukraine

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2006年 / 82卷 / 04期

关键词：

Activate Carbon Powder; Organic Electrolyte; Double Layer Capacitor; Porous Carbon Material; Nanoporous Carbon;

D O I：

10.1007/s00339-005-3416-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to see how the power density of supercapacitors could be increased, a theoretical model of the nanoporous carbon electrode as a tier structure with transport channels has been developed. Also an experimental method has been developed to measure the rate of electrolyte transport through the porous electrode material. This method can be used for quick analysis and selection of electrodes. The results of modeling have been verified by testing the experimental EDLC prototypes with optimum electrode thickness and electrode porosity, the porosity being well matched with the size of ions in organic electrolytes. This enables us to reach a power density as high as 6-7 kW/L with a reasonably large energy density and high efficiency for both EDLC unit cells and stacks.

引用

页码：653 / 657

页数：5