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Illinois-based Microlink Devices has announced that the efficiency of thin-film cells based on its three-junction epitaxial stripping (ELO) technology has reached 37.
75%, setting a new solar cell efficiency record
.
With a power density of over 3,000 watts/kg, this lightweight battery is designed for use in satellites and drones
.
The new efficiency record has been confirmed
by the National Renewable Energy Laboratory.
The battery was tested under industry-standard irradiation conditions (AM1.
5g) using a solar simulator, and efficiency records have been confirmed
by the National Renewable Energy Laboratory (NREL).
Microlink also says the battery's power density exceeds 3,000 watts/kg, a world record
for any battery technology.
Microlink's ELO production process involves stripping thin active battery layers from a gallium arsenide substrate and incorporating multi-junction technology, integrating three or more semiconductor layers developed by NREL to achieve very high conversion efficiency
.
Microlink has signed a proprietary technology commercialization agreement
with NREL.
While the company notes that substrates made from expensive gallium arsenide can be reused to reduce costs, these batteries are unlikely to be cheap enough to be used outside of drones, satellites, and other areas where very lightweight solar cells are needed
.
"We are continuing to push the limits of what ELO technology can achieve," said
Noren Pan, founder and president of Microlink Devices.
"Our three-junction IMM ELO solar cells combine the highest efficiency and lowest mass density
of all solar cell technologies available today.
"
The company also makes its technology available to Airbus, defense and space, and is used to power Zephyr HALE, a solar-powered unmanned aerial vehicle that provides several records
for non-stop flight.
Illinois-based Microlink Devices has announced that the efficiency of thin-film cells based on its three-junction epitaxial stripping (ELO) technology has reached 37.
75%, setting a new solar cell efficiency record
.
With a power density of over 3,000 watts/kg, this lightweight battery is designed for use in satellites and drones
.
The new efficiency record has been confirmed
by the National Renewable Energy Laboratory.
The battery was tested under industry-standard irradiation conditions (AM1.
5g) using a solar simulator, and efficiency records have been confirmed
by the National Renewable Energy Laboratory (NREL).
Microlink also says the battery's power density exceeds 3,000 watts/kg, a world record
for any battery technology.
Microlink's ELO production process involves stripping thin active battery layers from a gallium arsenide substrate and incorporating multi-junction technology, integrating three or more semiconductor layers developed by NREL to achieve very high conversion efficiency
.
Microlink has signed a proprietary technology commercialization agreement
with NREL.
While the company notes that substrates made from expensive gallium arsenide can be reused to reduce costs, these batteries are unlikely to be cheap enough to be used outside of drones, satellites, and other areas where very lightweight solar cells are needed
.
"We are continuing to push the limits of what ELO technology can achieve," said
Noren Pan, founder and president of Microlink Devices.
"Our three-junction IMM ELO solar cells combine the highest efficiency and lowest mass density
of all solar cell technologies available today.
"
The company also makes its technology available to Airbus, defense and space, and is used to power Zephyr HALE, a solar-powered unmanned aerial vehicle that provides several records
for non-stop flight.
