Activated carbon, method for production thereof, polarizing electrode and electrical double layer capacitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 20, 2010
Grant Date -
Dec 1, 2005
app pub date -
Jul 3, 2003
filing date -
Jul 30, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In activated carbon obtained by subjecting a carbonaceous material to an activation treatment, the overall content of alkali metals is set at 100 ppm or less, or the overall content of heavy metals is set at 20 ppm or less and the overall content of alkali metals is set at 200 ppm or less. In cases where such activated carbon is used as a raw material in electronic devices, the formation of dendrites by the reductive deposition of alkali metals or heavy metals tends not to occur, so that problems such as short-circuiting or the like tend not to arise, and a good rate of self-discharge retention is shown.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully