Danielle Fong (born October 30, 1987)[1] is a Canadian scientist and entrepreneur. She was the co-founder and chief scientist of LightSail Energy, and as of late 2025 is working at another startup, LightCell Energy.
In 2013, Fong stated she wanted to solve an energy problem and help democratize the storage of energy, in order to change how the average person lives in their home.[9]
LightSail raised over $70 million, including $2 million from Nova Scotia's Innovacorp, a government owned enterprise.[10] In 2016 it pivoted to producing transport modules for natural gas.[11][8] It entered hibernation and shut down in 2018,[12] with Khosla Ventures retaining the patents.[13]
LightCell Energy
In 2022, Fong founded Lightcell, an early stage company to design small self-contained devices which would turn fuel into electricity by heating salt until it radiates, absorbing that monochromatic light into specially designed solar cells, managing the heat produced, and recycling the sodium internally.[14]
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