CATL’s high-voltage sodium-ion battery gets an energy density of 175 watt-hours per kilogram. That’s below the 200–300 Wh/kg range typical of lithium-ion batteries, but it’s enough to ...

Sodium-ion units also tend to come in at a lower voltage than lithium-ion while packing on more weight, too. For these major reasons, sodium-ion batteries simply aren't a completely perfect ...

Researchers in China have used electrochemical impedance spectroscopy to analyze the state of health of sodium-ion batteries. Extracting four features from the measurements, they were able to create a ...

It has a particular crystal structure that could ensure 10% to 15% higher energy density than current sodium-ion batteries. “Our material also compares well with the class of layered materials ...

P2-Na 2/3 [Fe 1/2 Mn 1/2]O 2 is a promising high energy density cathode material for rechargeable sodium-ion batteries, but its poor long-term stability in the operating voltage window of 1.5–4. ...

To this end, researchers have suggested sodium-ion batteries (SIBs) as a possible candidate. However, sodium ions, being large and sluggish, hamper sodium-ion battery (SIB) anode performance.

Progress in Sodium-Ion Battery Technology. SIBs have become a practical alternative to LIBs, mainly due to sodium’s abundance and lower cost. While their theoretical energy density is lower, SIBs can ...

The new material, sodium vanadium phosphate with the chemical formula NaxV2(PO4)3, improves sodium-ion battery performance by increasing the energy density—the amount of energy stored per kilogram—by ...

Yadea’s new sodium battery offers an energy density of 145 Wh/kg and a lifespan of up to 1,500 cycles at room temperature, with the company rating it for a five-year useful lifespan.

CATL’s high-voltage sodium-ion battery gets an energy density of 175 watt-hours per kilogram. That’s below the 200–300 Wh/kg range typical of lithium-ion batteries, but it’s enough to ...