Breaking News
Newest First | Oldest First | Threaded View
User Rank
re: Activated graphene boosts supercaps
ArekZ   5/19/2011 5:52:32 AM
Hmm... huge power density. They don't say that yet but I wonder if some production defects or just aging may cause some internal energy "leaks" which may end up with an explosion. A bit like a dynamite ... (or lithium batteries).

User Rank
re: Activated graphene boosts supercaps
R_Colin_Johnson   5/18/2011 10:30:45 PM
We don't reference the scholarly papers that give all the details, because those publishers charge you. However, the online free abstract gives the following details: from exfoliated graphite oxide the team synthesized a porous carbon with a surface area of up to 3100 square meters per gram. Two-electrode supercapacitor cells were constructed yielding high gravimetric capacitance and energy density with organic and ionic liquid electrolytes. The processes used to make this carbon are readily scalable to industrial levels."

User Rank
re: Activated graphene boosts supercaps
selinz   5/18/2011 7:49:03 PM
It would be helpful to have some insight as to how they plan to layer the capacitors to take advantage of the morphology... Otherwise it's just not clear how much of an advantage this will give..

Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Engineer's Bookshelf
Caleb Kraft

The Martian: A Delightful Exploration of Math, Mars & Feces
Caleb Kraft
To say that Andy Weir's The Martian is an exploration of math, Mars, and feces is a slight simplification. I doubt that the author would have any complaints, though.

The Engineering Life - Around the Web
Caleb Kraft

Surprise TOQ Teardown at EELive!
Caleb Kraft
Post a comment
This year, for EELive! I had a little surprise that I was quite eager to share. Qualcom had given us a TOQ smart watch in order to award someone a prize. We were given complete freedom to ...

Design Contests & Competitions
Caleb Kraft

Join The Balancing Act With April's Caption Contest
Caleb Kraft
Sometimes it can feel like you're really performing in the big tent when presenting your hardware. This month's caption contest exemplifies this wonderfully.

Engineering Investigations
Caleb Kraft

Frankenstein's Fix: The Winners Announced!
Caleb Kraft
The Frankenstein's Fix contest for the Tektronix Scope has finally officially come to an end. We had an incredibly amusing live chat earlier today to announce the winners. However, we ...

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)