期刊
AICHE JOURNAL
卷 58, 期 3, 页码 974-983出版社
WILEY-BLACKWELL
DOI: 10.1002/aic.12632
关键词
aqueous supercapacitor stack; titanium bipolar plates; carbon nanotube; polypyrrole; carbon black
资金
- E.ON AG through the E.ON International Research Initiative-Energy Storage
A 20 V stack of 19 supercapacitors was fabricated from titanium bipolar plates (150 x 150 x 0.1 mm3) coated on each side with carbon nanotubes and polypyrrole composite (+) and pigment carbon black (-), and microporous polymeric separators containing aqueous KCl. Internal sealing of each cell in the stack was achieved by placing a silicone rubber washer between neighboring bipolar plates. The stack was tested by high voltage cyclic voltammetry, galvanostatic charging and discharging, and electrochemical impedance spectroscopy. It approached 25 kW/kg in maximum specific power and 3.64 Wh/kg in specific energy. Performance of the stack through intermittent charging-discharging tests in a storage period of 10 months (still ongoing) remained fairly stable. For example, it exhibited almost zero decay in capacitance after 1000 continuous galvanostatic charging-discharging cycles in the first month of storage (10 V), and less than 6% loss in the seventh month (19 V). (c) 2011 American Institute of Chemical Engineers AIChE J, 2012
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据