https://lightcellenergy.com

lightcell energyDowntown Café, coffee, Fitzroy, tealightcell energy. power the world with light. california energy startuplightcell energy what a lightcell is an engine that uses light to make electricity (schematic) hydrogen/fuel combustion ultralight power lightcells burn hydrogen/fuel mixed with sodium illuminant hot sodium illuminant emits near monochromatic light, which tuned photovoltaic cells collect to make electricity sodium illuminant  optical cavity infrared recycling ⇝ ⇝ ceramic recuperator,  heat recycling    3000 suns  yellow light (~2.1eV) bandgap-tuned  photovoltaic cells (~2.1 eV) electricity  why unlock the incredible energy density of hydrogen/fuel in a highly efficient whisper quiet package lightcell can use hydrogen lightcell can use fuel natural gas gasoline ammonia butane propane alcohols syngas... use hydrogen for most cycles use fuel for extended duration ideally, synthetic, net zero carbon emissions fuels how  target efficiency:    ≥ 40% wire to wire power:                 ≥  5 kw / kg energy density:         ≫ 500 watthours/L   module size:                    ≥  10kw, < 4 L  hot sodium emits intense,  nearly monochromatic light, sodium's lone outer shell electron is easily excited (vid: hacksmith, youtube, 2020) sodium's weakly bound, lone outer electron "rings like a bell" at 2.1 eV,  it takes only nanoseconds for the energy absorbed to be reemitted as 589 nm, 2.1 eV photonswhen sodium relaxes to its ground state the transparent reaction cylinder is surrounded by a shell of "hot mirrors", which reflect infrared photons & let visible light through.this allows for a recycling of waste heat, dramatically increasing efficiency who 2.1 eV photons can be efficiently absorbed by a photovoltaic cell with a bandgap tuned to 2.1 eV we can harness the materials developed for solar concentrating multijunction cells a ceramic, 3d printed counterflow heat exchanger acts as a recuperator, collecting ~90% of the heat from the exhaust, and efficiently preheating intake air and fuel. its many wiggles form an optical labyrinth, reducing losses from light leaking out the ends more than 20 fold Physicist (Princeton PPPL) MIT TR35, Forbes 30u30  Inventor, lightcell Cofounder, LightSail Energy "hot mirror" infrared reflector reflectance vs transmission counterflow ceramic recuperator Steve Crane, COO Danielle Fong, CEO BS. MIT (Geophysics)PhD. UCSD-Scripps 60+ patents in energy Startup Technical Executive Cofounder, LightSail Energy Jon Mapel, Chief of Development PhD MIT Electrical Engineering Serial hardware cofounder in LiDAR, Photovoltaics, LED lighting Shipped dozens of new products when founded: 2022 lightcell is a novel concept engine in development there's prior art from fields such as concentrated solar, pyrotechnics (fireworks), sodium lamps, and thermophotovoltaics,however, to our knowledge no past effort brought these concepts together. this effort harnesses advanced new materials,and uses physics at photon densities rarely explored.1731064212https://lightcellenergy.com

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