Heat can make Li-Ion batteries explode. Or restore their capacity, say Chinese boffins
https://www.theregister.com/2025/04/17/heat_repairs_li_ion_batteries/
Researchers at China’s Ningbo Institute of Materials Technology and Engineering have made a breakthrough that could change the life of old Lithium-Ion batteries. By heating these batteries to over 150°C, they can effectively restore the energy density, making them perform better for longer. This innovation has the potential to enhance the durability and efficiency of batteries used in various devices, from smartphones to electric vehicles. As battery waste becomes a growing concern, this development might be a step towards a more sustainable future.