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Scientists develop practical self-destructing battery

By Shawn Knight
Aug 9, 2016
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  1. Those self-destructing spy gadgets you see in the movies almost certainly exist (as they should, especially in the military where sensitive information could give an enemy the upper-hand). Such devices most likely rely on external power but that may not be the case for much longer.

    Scientists at Iowa State University have developed what they claim is a self-destructing battery that affords the power, stability and shelf life for practical use.

    The self-destructing lithium-ion battery in question measures just one millimeter thick, five millimeters long and six millimeters wide. Inside, you’ll find the traditional elements of a lithium-ion battery; it’s the enclosure that’s different. When exposed to water, the polymer composite casing swells, breaks apart and dissolves away.

    The battery’s active components aren’t soluble in water but given their micro- and nano-sized nature, they’re easily dispersed to the point that they’re hardly traceable.

    Reza Montazami, a materials scientist at Iowa State University who led the research, says the small battery supplies more than 2.5 volts – twice as much as previous transient batteries. That said, it can power a desktop calculator for about 15 minutes. After a half hour of being exposed to water, Montazami adds, the battery destroys itself.

    Spy gadgets are fun to think about as being disposable but there are plenty of other fields in which disposable materials like this could be useful including medical implants and environmental sensors, just to name a couple.

    Lead image courtesy Danomyte, Shutterstock

    Permalink to story.

     
  2. Trillionsin

    Trillionsin TS Evangelist Posts: 1,324   +137

    p51d007 likes this.
  3. stewi0001

    stewi0001 TS Evangelist Posts: 1,185   +530

    I feel like the heading is misleading.
     
    p51d007 likes this.
  4. yRaz

    yRaz TS Evangelist Posts: 1,906   +954

    I'm sure manufactures would love this for planned obsolensence.

    It's a Shawn article, I'd be disappointed if I wasn't mislead when reading his clickbait.
     
  5. Burty117

    Burty117 TechSpot Chancellor Posts: 2,920   +687

    Ouch!

    I'll call the local burn unit and let them know Shawn is on his way...
     
    Reehahs likes this.
  6. p51d007

    p51d007 TS Evangelist Posts: 914   +391

    Shoot, just use a cheap chinese battery charger or battery...BOOM!
     
    Trillionsin likes this.

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