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lightcell energy ๐Ÿ”†
244 posts
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lightcell energy ๐Ÿ”†
@lightcellenergy
ultra power dense electric generator using light. portable dyson spheres DMs open
San Francisco
lightcellenergy.com
Joined August 2022
44
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  • Pinned
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Nov 20, 2025
    thank you, brilliant investors, for getting us this far, and beyond, on our epic journey. together we will shine brighter than the stars
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Nov 20, 2025
    i often describe @lightcellenergy as building portable dyson spheres. harnessing the power of spectrally pure, chemically fueled, man made stars. and it's remarkable that within just a few months of starting experiments, we started achieving brightnesses greater than the sun
    Danielle Fong manually feeding table salt into a propane-oxygen glassblower's torch using a steel spoon. The reaction emitted a staggeringly bright yellow sodium lightโ€”so intense that, despite only looking for a few seconds, it left a line across her vision for a day.
    Macro shot of Alumina parts 3D-printed in "triple periodic minimal surface" (TPMS) lattices. This complex geometry is the fundamental building block of our technologyโ€”functioning simultaneously as the engine block, heat exchanger, and ceramic wick. It demonstrates how we solve thermal expansion through geometry, not just material choice.
    An alumina "Hyperboloid" crucible holding a molten NaCl (table salt) melt. It is emitting bright sodium light while being directly blasted by a propane-oxygen torch. The bowl successfully integrates a sapphire window, proving our materials stack can survive the extreme thermal environment of a man-made star.
    00:00
    11K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Aug 3, 2024
    we're hiring ceramicists and applied physicists to build an engine powered by light ๐Ÿ”†
    27K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    May 2, 2025
    ๐Ÿ”†
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Apr 27, 2025
    worked on a diagram today @lightcellenergy
    4.6K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Oct 4, 2025
    ๐Ÿ”†
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Sep 19, 2025
    .@lightcellenergy founders Jon Mapel, Steve Crane, and Danielle Fong introduce lightcell (2 min) *
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    5.8K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Aug 13, 2025
    mini lab tour! and we'll make more! ๐Ÿง‘๐Ÿปโ€๐Ÿ”ฌ๐Ÿ”†
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Aug 13, 2025
    Replying to @DanielleFong @formlabs and @nTopology
    inspired to shoot a micro lab tour / minute hype-reel of @lightcellenergyโ€™s lab (& my home) where we build portable dyson spheres. order of magnitude energy density increase over batteries. thanks to @nTopology, @formlabs for sponsoring this work! x.com/daniellefong/sโ€ฆ
    00:00
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Apr 28, 2024
    ๐Ÿ”†
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Apr 3, 2024
    thanks @pronounced_kyle on First Principles for this @lightcellenergy interview! most exciting project of my life; if we get it to work as well as we think we might, itโ€™s a foundational unlock to power the tech tree of the future with ultra-light power
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    Christian Keil
    a16z
    00:00
    user avatar
    Christian Keil
    a16z
    5.7K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Jun 27, 2024
    ๐Ÿ”† ultralight power
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Jun 27, 2024
    โ€ข@lightcellenergy๐Ÿ”…#SFDeepTechWeek ๐ŸŒ‰ gigarave showing 100s aboard the legendary USS Hornet how we convert fuel into power โšก๏ธ- via intense yellow light, harnessing the quantum resonance of sodium (in salt!) ๐Ÿซก @Andercot @sampritibh @SimoneSyed! ๐ŸŽถ
    00:00
    8K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Nov 13, 2025
    thank you so much to Juan and our many investors who have made this crazy adventure into making glowing Sci Fi energy sources possible. building this in public has been the privilege of a lifetime. it has been a gift from the universe. now it is our duty to convey it to you
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    Juan Benet
    @juanbenet
    Nov 13, 2025
    I love that @DanielleFong lives and works like a real OG scientist inventor โ€” if James Watt and Nikola Tesla were alive today, their labs would look similar, specially with wine + pasta + notebook lab dinner. Love when pictures come through my feed and we get to see the latest
    2.3K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Apr 2, 2025
    ๐Ÿ”†
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Apr 2, 2025
    what did you think 'portable dyson sphere' meant? . . . vibes? propane? propane accessories? happy april from @lightcellenergy๐Ÿ”†
    3.9K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Sep 18, 2025
    Replying to @nirbheek @DanielleFong and @Standard_Cap
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Sep 18, 2025
    Replying to @DanielleFong @Standard_Cap and @lightcellenergy
    who up fixing they @Standard_Cap application video? (for posterity, if not the application ๐Ÿ™ƒ) @lightcellenergy๐Ÿ”†, that's who! x.com/mwseibel/statuโ€ฆ
    00:00
    1.3K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Jul 1, 2024
    ๐Ÿ”…
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Jun 29, 2024
    lightcell plasma seared doner kebab (donair!), in a night market in a redwood forest in a solar A-frame village that we built in a month. @nhfoley @ansonyuu and and incredible crew. searing like you've never experienced before ๐Ÿ˜‰ at @JoinEdgeCity. pics by @drethelin so many
    2.2K
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Aug 25, 2025
    ๐Ÿ”†
    813
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Jul 23, 2024
    rip sapphire tube #5 ๐Ÿ”… your crystal light kept many flames alive ๐Ÿซก
    00:00
    822
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    lightcell energy ๐Ÿ”†
    @lightcellenergy
    Jun 22, 2025
    this is canon
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    Danielle Fong ๎จ€๐Ÿ”†
    @DanielleFong
    Jun 22, 2025
    "danielle, how'd you get the idea to make a dyson sphere out of... fireworks? made of salt?"
    5.3K

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