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"Sodium-ion Battery packs for electric bikes"

Featured Replies

"We Tried Unusual Sodium Ion Batteries in Our Motocompacto Type R

 

Sodium ion is all the rage now, but what's the deal with the emerging chemistry? "

 

"To test this idea out, we decided to make our own battery packs that can accept any variety of 18650-type cells."

 

https://www.motor1.com/features/713344/sodium-ion-motocompacto-type-r/

Thanks for the Sodium battery links Lenny.

 

I have not seen them offered as cheaply as is mentioned in the last article. Nothing like. They were about £3 each on ebay when I looked the other day.

  • 2 weeks later...
At present, sodium-ion cells are almost 50% as energy and power dense as lithium-ion cells, meaning that a pack of equivalent performance will be around 200% larger/heavier.

"UChicago Prof. Shirley Meng’s Laboratory for Energy Storage and Conversion creates world’s first anode-free sodium solid-state battery – a breakthrough in inexpensive, clean, fast-charging batteries"

 

https://pme.uchicago.edu/news/uchicago-prof-shirley-mengs-laboratory-energy-storage-and-conversion-creates-worlds-first

 

During battery assembly the powder was densified under high pressure to form a solid current collector while maintaining a liquid-like contact with the electrolyte, enabling the low-cost and high-efficiency cycling that can push this game-changing technology forward.

 

“Sodium solid-state batteries are usually seen as a far-off-in-the-future technology, but we hope that this paper can invigorate more push into the sodium area by demonstrating that it can indeed work well, even better than the lithium version in some cases,” Deysher said.

 

If this is true, and it works, it could mean a revolution in battery technology.

 

I used to think a few years ago that we were at the limits of the practical physics and chemistry of battery development. We were certainly not. Very clever people keep coming up with very novel ideas like this and we might soon see the back of batteries depending on the very scarce element we now depend on.

  • 5 months later...
  • 3 weeks later...
  • Author

Dual Salt-Based Electrolyte for High-Performance Na-S Batteries

Researchers from Fujian Normal University have developed a novel dual salt-based quasi-solid polymer electrolyte for room-temperature Na-S batteries. This innovative electrolyte effectively mitigates the polysulfide shuttle effect and stabilizes the electrode-electrolyte interface, leading to significant performance enhancements through in situ polymerization. The study was published in the journal Energy Materials and Devices.

https://www.azom.com/news.aspx?newsID=64121

  • 1 month later...
  • 2 months later...

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