Sodium-ion solid-state battery 2024

Can a sodium solid-state battery be anode-free?

Scientists have created an anode-free sodium solid-state battery. This brings the reality of inexpensive, fast-charging, high-capacity batteries for electric vehicles and grid storage closer than ever.

What is a sodium anode-free all-solid-state battery full cell?

A sodium anode-free all-solid-state battery full cell is demonstrated with stable cycling for several hundred cycles. This cell architecture serves as a future direction for other battery chemistries to enable low-cost, high-energy-density and fast-charging batteries.

Are all-solid-state sodium batteries better than lithium-ion batteries?

While lithium-ion batteries are currently the most widely used, all-solid-state sodium batteries are attracting attention as sodium is far more plentiful than lithium. This should make sodium batteries less expensive, and solid-state batteries are thought to be safer, but processing issues mean mass production has been difficult.

Could a new sodium battery architecture be a future direction?

A trifecta of cutting-edge products debuted at Hithium’s second Eco Day event held in Beijing on Thursday. Researchers in the U.S. have created a new sodium battery architecture with stable cycling for several hundred cycles, which could serve as a future direction to enable low-cost, high-energy-density and fast-charging batteries.

What is a solid-state Na-ion battery?

All-solid-state Na-ion batteries incorporating amorphous Na 2 O 2 –HfCl 4 electrolyte and a Na 0.85 Mn 0.5 Ni 0.4 Fe 0.1 O 2 cathode exhibit a superior rate capability and long-term cycle stability, with 78% capacity retention after 700 cycles under 0.2 C (1C = 120 mA g −1) at room temperature.

What is the coulombic efficiency of a sodium all-solid-state battery?

As a proof of concept, an anode-free sodium all-solid-state battery with NaCrO 2 as the cathode, under 10 MPa stack pressure at 40 °C, was cycled for 400 cycles with an average Coulombic efficiency of 99.96%.