Silicon Valley-based innovator involved in developing and commercialising high-performance solid-state electrolyte materials, Ampcera, has announced its patent-pending technology for all-solid-state batteries. This path-breaking technology enables ultra-fast charging in electric vehicles.
The recently published worldwide patent application titled 'Internally Heatable Battery, Internally Heatable Battery System, Internally Heatable Battery Method, and Electric Vehicle Comprising the Same' is a low cost, energy-efficient internal heating battery architecture. It directly targets the solid electrolyte separator, the critical component in solid-state batteries. This innovative technology enables solid-state batteries to deliver superior performance, including starting and operating in cold weather, charging ultra-fast and safely, and increasing power rate and energy efficiency in next-generation electric vehicles.
By 2025, Ampcera's solid-state electrolyte and battery technologies are projected to reach less than 10-minute ultra-fast charge and gravimetric and volumetric energy densities of 450 Wh/kg and 1400 Wh/L, respectively. Using scaled manufacturing processes for mass production, a competitive battery cost of less than $75 per kilowatt hour can be achieved, the company said.
The solid-state electrolyte's ionic conductivity is increased by more than ten folds when needed while keeping the battery operating continuously at ambient temperature. Moreover, interface resistance between the solid electrolyte and positive and negative electrodes is significantly diminished. The combination of enhanced conductivity and reduced interface resistance enables solid-state batteries to be rapidly charged in a few minutes.
Dr Hui Du, co-founder and CTO of Ampcera, said, 'We are very excited to announce this new technology for ultra-fast charging of solid-state batteries. The next step is to incorporate this technology into all-solid-state battery cells for further performance testing by Ampcera and our automotive OEM partners.'