"The cathode is not made from the familiar mixture of #lithium and other metals. Instead, the primary ingredient is #zinc, which ranks as the fourth most produced metal in the world.
Eos’s batteries use a #water-based electrolyte (the liquid that moves charge around in a battery) instead of organic solvent."
This is intended to be a #GridBattery.
"#Vanadium#FlowBatteries may be more expensive up front but last for decades, don’t catch fire and can store and dispatch sunshine for 10 to 18 hours
Coupling a six megawatt solar plant with an eight MWh flow battery at the site will produce 10 GWh of dispatchable solar power yearly.
Australia has vast reserves of vanadium but most of the world’s supply is sourced from China, Russia and South Africa and goes into making steel alloy."
"#Battery giants are starting to put their money on new #sodium-based technology, a sign that there could be yet another shakeup in the industry that’s crucial for the #EnergyTransition.
Even with the recent slump in lithium prices, sodium is still a cheaper option.
Its clearest potential advantage is in storing excess electricity for grids."
"When wind or solar power is abundant, the energy can be used to compress carbon dioxide gas into a liquid. When extra energy is needed, the liquid will be allowed to decompress, turning back into gas and powering a turbine to generate enough electricity to power up to 20,000 homes. "
“Right now we have nothing that can buffer a 4 megawatt solar field.”
Dendrite formation is the bane of lithium batteries.
"In the new research, Li and his team stop #dendrites from forming by using micron-sized silicon particles in the anode to constrict the lithiation reaction and facilitate homogeneous plating of a thick layer of #lithium metal."
@CelloMomOnCars Also, I see "faster charging" and I think that perhaps the people writing these articles have not thought about energy vs power and what power draw a rapid charge implies for the large batteries in the large cars we decided to put them in. Versus, for an e-bike battery, this would be fine. Also for an e-bike battery, can solve a lot of the temperature problems w/ a few resistors & a smarter controller; if someone tries a cold charge, just warm the battery first.
E-bike riders do have to take care of their batteries at these low temps (bring it inside, if you can, and let it warm up before starting to charge), as none of them afaik have the kind of software that keeps e-car batteries safe at low temps.
"The recent price cuts come from a deliberate decision to use abundant earth materials such as iron and phosphorus wherever possible.
These #batteries are cheaper, as they have no #cobalt. They have other benefits too: a longer usable life and less risk of fire than traditional #lithium battery chemistries. The downside is they have lower capacity and voltage."
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