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Dave Rahardja (drahardja@sfba.social)'s status on Thursday, 12-Oct-2023 07:45:50 JST Dave Rahardja

This is so cool! The engineers at MIT discovered that cement and carbon black (paracrystalline carbon) can be mixed to create a supercapacitor that still behaves like cement. That means you can build cement structures that store energy. They estimate that 45 m³ of this material is enough to store 10 kWh (about a day’s worth of energy for a home).
“New Breakthrough in Energy Storage – MIT Engineers Create Supercapacitor out of Ancient Materials”
https://scitechdaily.com/new-breakthrough-in-energy-storage-mit-engineers-create-supercapacitor-out-of-ancient-materials/

In conversation about a year ago from sfba.social permalink
- Haelwenn /элвэн/ :triskell: likes this.
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  Dave Rahardja (drahardja@sfba.social)'s status on Thursday, 12-Oct-2023 09:48:01 JST Dave Rahardja
  in reply to
  - Frederic Barthelemy
  @fbartho 45 cubic meters, not 45 meters cube. 45 m³ is a cube 3.5 m on each side, which is probably the same volume of concrete used to make e.g. a slab foundation plus a driveway.
  
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  Frederic Barthelemy (fbartho@mastodon.social)'s status on Thursday, 12-Oct-2023 09:48:04 JST Frederic Barthelemy
  in reply to
  
  @drahardja 45meters cube is freaking huge! You need a block of this larger than your house to power your house!
  If the materials cost of this is cheap enough, I could see it when you already have a lot of cement, but hopefully they can improve the density!
  
  In conversation about a year ago permalink
  
  novatorine 🏴🏳️‍⚧️ repeated this.
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  Frances Larina (frances_larina@sfba.social)'s status on Thursday, 12-Oct-2023 09:49:34 JST Frances Larina
  in reply to
  
  @drahardja
  It would take two 8,000 sq ft suburban lots to store the power for one house...in a structure almost 150 feet tall!
  
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  novatorine 🏴🏳️‍⚧️ (anarchopunk_girl@kolektiva.social)'s status on Thursday, 12-Oct-2023 09:49:34 JST novatorine 🏴🏳️‍⚧️
  in reply to
  - Frances Larina
  @Frances_Larina @drahardja https://sfba.social/@drahardja/111218114725467055
  In conversation about a year ago permalink
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    Dave Rahardja (@drahardja@sfba.social)
    
    from Dave Rahardja
    
    @fbartho@mastodon.social 45 cubic meters, not 45 meters cube. 45 m³ is a cube 3.5 m on each side, which is probably the same volume of concrete used to make e.g. a slab foundation plus a driveway.

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