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Flexible, Printed Batteries for Wearable Devices

Discussion in 'Technology' started by Javvee, Jul 28, 2014.

  1. Javvee

    Javvee Well-Known Member

    Imprint Energy is developing a long-lasting, bendable
    and rechargeable battery.

    A California startup is developing flexible, rechargeable
    batteries that can be printed cheaply on commonly used
    industrial screen printers.

    Imprint Energy
    , of Alameda, California, has been testing
    its ultrathin zinc-polymer batteries in wrist-worn devices and
    hopes to sell them to manufacturers of wearable electronics
    medical devices, smart labels, and environmental sensors.

    The company’s approach is meant to make the batteries
    safe for on-body applications while their small size and
    flexibility will allow for product designs that would have
    been impossible with bulkier lithium-based batteries.

    Even in small formats, the batteries can deliver enough
    current for low-power wireless communications sensors
    distinguishing them from other types of thin batteries.


    Despite demand for flexible batteries, Ho says no
    standard has been developed for measuring their
    flexibility frustrating customers who want to
    compare chemistries.

    So the company built its own test rig and began
    benchmarking its batteries against commercial
    batteries that claimed to be flexible.

    Existing batteries failed catastrophically after fewer
    than 1,000 bending cycles she says, while Imprint’s
    batteries remained stable.

    Imprint has also been in talks about the use of
    its batteries in clothes and "weird parts of your
    body like your eye," Ho says.

    The company also recently began working on
    a project funded by the U.S. military to make
    batteries for sensors that would monitor the
    health status of soldiers.

    Other potential applications include powering smart
    labels with sensors for tracking food and packages.

    Sources: http://www.technologyreview.com/