People Innovation Excellence

Less Fire, More Power: The Secret to Safer Lithium-Ion Batteries

Lithium-ion batteries have made headlines for the wrong reason: as a fire hazard. Just this past May, three apparent battery fires in Tesla cars were reported in the United States and Switzerland. In the United States alone, a fire in a lithium-ion battery grounds a flight every 10 days on average, according to the Federal Aviation Administration. And the same problem afflicts electronic cigarettes, which have been blowing up in people’s faces sporadically.

No other drawback has so hobbled the advance of what is by far the most promising battery technology to emerge in our lifetimes. Lithium-ion batteries store much more energy than previous chemistries could manage, making them crucial to the future success of phones, drones, cars, even airplanes.

Solving this problem would not only protect lives and property, it would also make it possible to use larger battery packs with more closely packed cells. We’d finally be able to fully exploit the great energy-to-weight ratio, or specific energy, that this technology allows. What’s more, we’d be able to make progress with the next generation of batteries, the ones that use lithium metal.

The problems of today’s lithium-ion batteries can be traced largely to dendrites, tiny threadlike structures that form on the surface of an electrode over repeated cycles of charging and discharging. But through our work at Dartmouth and Stanford, the two of us have found that a little chemical tweaking of the electrolyte can head off the pesky growths.

Published at :
Leave Your Footprint

    Periksa Browser Anda

    Check Your Browser

    Situs ini tidak lagi mendukung penggunaan browser dengan teknologi tertinggal.

    Apabila Anda melihat pesan ini, berarti Anda masih menggunakan browser Internet Explorer seri 8 / 7 / 6 / ...

    Sebagai informasi, browser yang anda gunakan ini tidaklah aman dan tidak dapat menampilkan teknologi CSS terakhir yang dapat membuat sebuah situs tampil lebih baik. Bahkan Microsoft sebagai pembuatnya, telah merekomendasikan agar menggunakan browser yang lebih modern.

    Untuk tampilan yang lebih baik, gunakan salah satu browser berikut. Download dan Install, seluruhnya gratis untuk digunakan.

    We're Moving Forward.

    This Site Is No Longer Supporting Out-of Date Browser.

    If you are viewing this message, it means that you are currently using Internet Explorer 8 / 7 / 6 / below to access this site. FYI, it is unsafe and unable to render the latest CSS improvements. Even Microsoft, its creator, wants you to install more modern browser.

    Best viewed with one of these browser instead. It is totally free.

    1. Google Chrome
    2. Mozilla Firefox
    3. Opera
    4. Internet Explorer 9