Bloomberg, May 2, 2017

Bill Joy, the Silicon Valley guru and Sun Microsystems Inc. co-founder, sees the future of energy in a battery that can take a bullet.

The venture capitalist formerly with Kleiner Perkins Caufield & Byers LLC is now dedicating most of his time to Ionic Materials Inc., a Woburn, Massachusetts-based startup developing lithium batteries that won’t burst into flames. They’re strong enough to withstand being pierced by nails and even getting shot, as the company demonstrates in a promotional video.

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