Chinese researchers report 700 Wh/kg lithium-metal battery
Why it matters: This battery could enable electric vehicles and aerospace applications to operate in extreme cold environments.
- A research team led by Nankai University and the Shanghai Institute of Space Power-Sources reported a lithium-metal pouch battery with over 700 Wh/kg energy density.
- The new battery can operate at temperatures as low as -70°C.
- The innovation centers on a hydrofluorocarbon (HFC) electrolyte, specifically using 1,3-difluoropropane (DFP) as a core solvent, enabling lithium salt dissolution above 2 mol/L.
Chinese researchers have developed a groundbreaking lithium-metal battery with an energy density exceeding 700 Wh/kg, capable of operating in extreme cold down to -70°C. This advancement, detailed in Nature, utilizes a novel hydrofluorocarbon electrolyte that challenges previous assumptions about fluorinated hydrocarbon solubility.
