Nanotech ultracapacitors from MIT

Nanotech ultracapacitors from MIT

As a battery engineer’s daughter, I appreciate how hard it is to make a better battery. Now Technology Review reports that some MIT researchers are taking a different approach: make a better capacitor. Excerpts:

“The new technology, developed at MIT’s Laboratory for Electromagnetic and Electronic Systems, should improve ultracapacitors by swapping in carbon nanotubes, thereby greatly increasing the surface area of electrodes and the ability to store energy…

“Ultracapacitors could allow laptops and cell phones to be charged in a minute. And unlike laptop batteries, which start losing their ability to hold a charge after a year or two, they could still be going strong long after the device is obsolete. ‘Theoretically, there’s no process that would cause the [ultracapacitor] to need to be replaced,’ says professor John Kassakian, another of the researchers.”

This last point is critical from an environmental point of view. Many of today’s batteries are full of toxic materials (e.g., lead) — that’s why we have to dispose of them so carefully today. So: go, MIT! —Christine (an alumna)

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  1. sandhya madan March 17, 2006 at 4:10 am - Reply

    I’m a 2nd year electrical engineering student from chennai, india. I’ve read that ultracapacitors are used to improve power quality of transmission lines, but I haven’t been able to find more details. I would like to know where I can find stuff related to this.
    Thank you.

  2. nikhil March 31, 2006 at 4:26 am - Reply

    hi i am a 3rd year engg. student . my name is nikhil joshi .i’m having my seminar on ultracapcitors . so if you want some help you can contact me.

  3. NIVEDITA May 13, 2006 at 6:58 am - Reply

    Hi Iam an engg student was expecting some information on ultracapacitors for giving seminar on the subject. On seeing ur information i decided to have ur timely help on the subject. so pls furnish all required information on ultracapacitors by tomorrow. i hope that u will do the needfull immidiately.
    Thank you.

    Yours fraternally,

  4. sandhya madan July 25, 2006 at 8:45 am - Reply

    hi. i was looking for info related to ultracapacitors to improve transmission of power. something like mass ultracapacitor banks to improve power factor.

  5. Milo Thomas February 12, 2007 at 11:10 am - Reply

    I am also doing a seminar on ultracapacitors and i dont have a clue on how to go about preparing a report or a presentation.

    Any help on the subject will be much appreciated.

    Thanks in advance

  6. James Jackson May 1, 2008 at 8:15 pm - Reply

    Milo: I have noticed a website recently on ultracapacitors:

    It has great information that will help you understand them better.


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