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Curated by: Breaking Taps (107 videos)
CONSIDER SUBSCRIBING 🥰 ☕Buy me a coffee? https://www.buymeacoffee.com/Breakingtaps 🔬Or Patreon if that's your jam: https://www.patreon.com/breakingtaps 📢Twitter: https://twitter.com/BreakingTaps 💻Discord: https://discord.gg/R45uCXcEv4 Can you make a supercapacitor from kapton tape? Yep! Using a laser, we can decompose the Kapton (polyimide) into a graphene "foam" via a process known as Laser Induced Graphene. This form of graphene makes an excellent material for electrostatic double-layer supercapacitors. It has reasonable conductivity and a very large surface area due to the foamy nature, which allows good contact with the electrolyte. "Lin, Jian, et al. "Laser-induced porous graphene films from commercial polymers." Nature communications 5.1 (2014): 1-8." https://www.nature.com/articles/ncomms6714/ More papers on LIG: https://scholar.google.com/scholar?as_vis=1&q=%22laser+induced+graphene%22++polyimide&hl=en&as_sdt=1,46 0:00 Intro 0:48 Graphene 1:51 Laser Induced Graphene 3:07 Supercap structure 4:12 Expected voltage 4:36 Parallel plate capacitance vs Electrostatic double-layer 6:05 Stacking kapton to increase capacitance 7:04 Adding electrolyte and watching capacitance increase 7:37 Validating the capacitance meter 9:10 Low voltage, high-temperature heater setup