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Old 06-23-2019, 08:22 PM
  #23  
atpcliff
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Originally Posted by rickair7777 View Post
No. No possible battery chemistry can provide the required energy density/specific energy. Chemistry is a very mature science, we're not going to suddenly find a new molecular structure when can store ten times the energy.

All we can do with batteries is improve the efficiency of known chemistry towards the theoretical max. Also improve cycle life and charge cycle degradation characteristics.

Right now mature (commercially viable) battery technology can get to around 200 W hours/KG. Theoretical chemical limit is about 1,000 Wh/KG.

Jet A is 12,000 Wh/KG...

There's no uncharted territory in molecular chemistry which is going to provide an order of magnitude+ improvement in specific energy. The answer is going too be biofuel.
"Lithium-air batteries, which are technically considerably more difficult and complicated to realize, can have energy densities of up to 11,400 Wh/kg."

"I've also seen references on the internet to Li/O2 and Al/O2 batteries with MTSE of 2815 and 5200 Wh/kg"

"Using complex hydrides, a research group in Japan has demonstrated the possibility of building high-energy-density all-solid-state batteries with capacity exceeding 2,500 Wh/kg. Read more from Asian Scientist Magazine at: https://www.asianscientist.com/2019/04/in-the-lab/solid-state-lithium-batteries-complex-hydride/"
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