New Solid Hydrogen-on-Demand Fuel Cell from HES Energy Systems Flies ST Aerospace UAV for Record 6 Hours

Skyblade 360 UAV and its fuel cell are on display at ongoing Singapore Airshow (ST Engineering booth) 300km flight represents a new world record for solid chemical hydrogen on demand technology

SINGAPORE--(BUSINESS WIRE)--A consortium of Singaporean institutions and private sector companies including HES Energy Systems, ST Aerospace, DSO National Laboratories, and the Future Systems and Technology Directorate of Singapore's Ministry of Defense, have worked jointly to achieve a record 6 hour endurance, 300km flight on the Skyblade 360 UAV built in Singapore by ST Aerospace. Besides achieving a significant technical and performance milestone for hydrogen-on-demand enabled fuel cells, it is also the first time in the world that a fuel cell moves beyond the prototype stage and enters the standard products list of a UAV manufacturer. The Skyblade 360 UAV and its fuel cell system are currently on display on ST Engineering's booth at the 2016 Singapore Air Show.


The Skyblade 360 fuel cell system developed by HES and DSO is extremely lightweight in comparison to lithium batteries that typically power this aircraft, and it is also extremely compact: its 1L fuel cartridge holds a whopping 1000Wh of usable energy. Unlike a typical hydrogen fuel cell, the system doesn't store its fuel as pressurized hydrogen gas, but stores it as a solid chemical material - making it easy for end-users to handle in the field.

Since its founding in 2009 in Singapore, HES has been developing the world's most advanced fuel cell systems and continues to help many of the world's unmanned aerial vehicle (UAV) manufacturers apply its technologies to improve the flight endurance of their electric powered aircraft. In the past years, HES was able to prove that its system was able to store 7% of its weight as hydrogen and a fuel utilization rate of close to 90%. Several material options exist for hydrogen on demand, however most cannot meet performance targets due to the nature of their reactions and how much energy or reactants are needed to extract hydrogen, which then delivers net usable energy through a fuel cell.

It took HES several years to achieve this performance. The company began its journey with various approaches and technologies including the use of costly Sodium Borohydride. The system designs based on Sodium Borohydride were complex, fragile, and came with many challenges for end-users. In 2013 HES pushed forward with a new material and a highly simplified system. The patented hydrogen on demand technology now targets operational costs of just $10 per flight hour - making it a real option for UAV manufacturers.

HES Energy Systems is part of H3 Dynamics Group (booth D94 / Emerging Technologies Zone) a complementary eco-system of Singapore-based hardware and software companies. HES now has two sister companies including HUS Unmanned Systems, an integrated robotics entity that applies HES technology, as well as HAS Awareness Systems - which is dedicated to advanced field communications, precision tracking and real-time analytics software. The group has recently completed a major financing and is currently expanding into the US, Europe, in addition to its existing base in South Africa.

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