article thumbnail

New solid hydrogen-on-demand fuel cell from HES Energy Systems flies UAV for record 6 hours

Green Car Congress

The company began 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. It took HES several years to achieve this performance.

Hydrogen 150
article thumbnail

Researchers Improve Performance of Ammonia Borane as Hydrogen Storage Material

Green Car Congress

Researchers at the Dalian Institute of Chemical Physics in China and the National University of Singapore have improved the performance of ammonia borane (AB) as a material for hydrogen storage—potentially for on-board storage in a vehicle—by developing a new method for doping AB with nanosized Co- and Ni-based catalysts. Credit: ACS.

Hydrogen 150
article thumbnail

High-capacity GQD-coated VO2 nanoarray electrodes for high-performance Li- and Na-ion batteries

Green Car Congress

Researchers from Nanyang Technical University (NTU) in Singapore have shown high-capacity, high-rate, and durable lithium- and sodium-ion battery (LIB and NIB) performance using single-crystalline long-range-ordered bilayered VO 2 nanoarray electrodes. The VO 2 nanoarrays are supported on graphene foam (GF) and coated with a thin (?2

Li-ion 186
article thumbnail

MIT and Moscow State collaborating on advanced batteries, metal-air batteries and reversible fuel/electrolysis cells

Green Car Congress

Other work focuses on sodium as an earth-abundant alternative to lithium, but while it could lower cost, sodium ions also carry just a single charge. Thompson previously served from 2000 to 2014 as co-chair of the MIT Singapore Alliance’s Program in Advanced Materials for Micro- and Nano-Systems.

MIT 150