CelloMom On Cars
Battery technology thread
"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.
#EnergyStorage
https://www.technologyreview.com/2023/09/06/1079123/zinc-batteries-boost-eos/
CelloMom On Cars
"Ambitious young EV automaker #ZEEKR is claiming a “new charging speed record” using its latest model and new lithium-iron-phosphate (LFP) #batteries, unveiled during a Tech Day event in China today. ZEEKR states that its new batteries can recharge its EVs from 10-80% state-of-charge as quickly as 10.5 minutes. "
https://electrek.co/2024/08/13/zeekr-announces-new-lfp-batteries-recharge-ev-10-80-minutes/
Would be nice to have some data on power density and longevity, but it's early days.
CelloMom On Cars
Lithium iron phosphate (LiFePO4) , or LFP batteries:
– do not contain nickel, manganese, or cobalt;
– cost significantly less, $60 per kilowatt-hour;
– can handle more charge-discharge cycles;
– have short charging times.
However, they have:
– less range (per kg);
– poor cold-weather performance
No data yet on safety performance.
CelloMom On Cars
The world’s first 100% silicon anode #battery will be manufactured from 2027 and will offer future EVs a 186-mile range with just five minutes of charging time.
https://www.livescience.com/technology/electric-vehicles/worlds-1st-silicon-anode-ev-battery-will-let-you-drive-up-to-186-miles-after-just-5-minutes-of-charging
#SiliconBattery
CelloMom On Cars
"#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."
CelloMom On Cars
"#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."
CelloMom On Cars
Not all #batteries work on chemistry.
"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.”
CelloMom On Cars
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."
#batteries
https://www.pv-magazine.com/2024/01/15/new-solid-state-battery-charges-in-minutes-lasts-for-thousands-of-cycles/
CelloMom On Cars
"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."
CelloMom On Cars
" The facility will be located in Edgecombe County, NC, and is expected to produce 24GW of #Natron’s revolutionary #sodium-ion batteries annually at full capacity. Natron’s #sodium-ion batteries offer higher power density, more cycles, a domestic U.S. supply chain, and unique safety characteristics over other battery technologies. "
Charlie Stross
@gregly @CelloMomOnCars Tesla actually tried that (swappable/leasable batteries) but gave up around 2018, IIRC—uptake was too low, and even with cars designed for a quick in-and-out swap drivers were too impatient
Determination G. Schadenfreude
@CelloMomOnCars @cstross The article mentioned that the battery is modular, and I think *that* is the key to mass EV adoption. Five minutes to 60% charge is amazing, but people are generally impatient. Imagine if you could stop at a service station, swap out a number of standardized empty cells for full ones, pay a fee for the charge difference, and head out again? Long-distance EV travel could be as easy as gasoline-engine travel.
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