Science Daily July 3, 2024 Anode-free batteries possess the optimal cell architecture due to their reduced weight, volume and cost. However, their implementation has been limited by unstable anode morphological changes and anode–liquid electrolyte interface reactions. An international team of researchers (USA – UC San Diego, University of Chicago, University of Korea) showed that an electrochemically stable solid electrolyte and the application of stack pressure could solve these issues by enabling the deposition of dense sodium metal. An aluminium current collector was found to achieve intimate solid–solid contact with the solid electrolyte, which allowed highly reversible sodium plating and stripping […]
Tag Archives: Fast charging batteries
Thin-film batteries rechargeable in just one minute
Science Daily August 29, 2023 The power capability of Li-ion batteries has become increasingly limiting for the electrification of transport on land and in the air. The specific power of Li-ion batteries is restricted due to the required cathode thickness of a few tens of micrometers. Researchers in Switzerland have developed a design of monolithically stacked thin-film cells that had the potential to increase the power ten-fold. They demonstrated an experimental proof-of-concept consisting of two monolithically stacked thin-film cells. Each cell consisted of a silicon anode, a solid-oxide electrolyte, and a lithium cobalt oxide cathode. The battery could be cycled […]