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Amprius Gets $30M Boost for Silicon-Based Lithium-Ion Batteries

The continuing quest for silicon nanotech in electronics, vehicle batteries
Jeff St. John
January 6, 2014

Since 2008, Silicon Valley startup Amprius has been working on a multi-pronged effort in next-generation energy storage technology — using silicon, rather than carbon, as a material for the electrodes within lithium-ion batteries.

The Stanford University spinout just announced a $30 million venture capital round aimed at supporting the first-generation batteries that Amprius has been producing at its Chinese facility since May, as well as continued development of the silicon nanowire technology behind the company’s founding.

Amprius’ new C round comes on top of a $25 million B round in 2011, bringing the Sunnyvale, Calif.-based company’s investment to date to at least $55 million, not counting its undisclosed Series A round and federal grants. Monday’s round was led by Asian private equity firm SAIF Partners and joined by previous investors Kleiner Perkins Caufield & Byers, Trident Capital, VantagePoint Capital Partners, IPV Capital, Chinergy Capital, and Innovation Endeavors, the investment firm founded by former Google CEO Eric Schmidt.
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