Amprius' silicon nanowire lithium ion batteries power Airbus’ Zephyr S solar aircraft

Airbus’ pseudo-satellite unmanned aerial vehicle Zephyr

Manufacturer and developer of high energy and high capacity lithium-ion batteries Amprius, Inc. is supplying advanced lithium ion cells to the Airbus Defence and Space Zephyr Program. Using Amprius' cells, which contain a 100 percent silicon anode, the »Zephyr S« flew more than 25 days, setting a new endurance and altitude record for stratospheric flight, says the company. Zephyr S has a wingspan of 25 meters and weighs less than 75 kg.
The Zephyr platform is a new class of unmanned air vehicle (UAV) that operates as a high-altitude pseudo-satellite (HAPS) filling a gap between satellites and UAVs enabling affordable, persistent, local satellite-like services. Combining solar power and lithium ion batteries, the Zephyr aircraft holds world records for endurance as well as altitude, flying at 70,000 feet or higher. This stratospheric platform can fly for months at a time and combines the persistence of a satellite with the flexibility of an UAV.
Amprius maintains an R&D lab and corporate headquarters in Sunnyvale, California; an R&D lab and pilot production line in Nanjing, China; and a manufacturing facility in Wuxi, China. Amprius is financed by venture capital and private equity investors including Trident Capital, VantagePoint Capital Partners, Google Executive Chairman Eric Schmidt, IPV Capital, Kleiner Perkins Caufield & Byers, SAIF Partners, Chinergy Capital, Wuxi IDG and DADI Capital.

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