Nature CommunicationsRegulating interface electric field to stabilize high-voltage KVPO4F positive electrode for sustainable potassium-ion batteriesHaijie QiYichen DuJianfeng DingLili SongJiaying LiaoCongying YuZeyu YuanShiang ChenXiaosi Zhou2026-04-07Full textDOI https://doi.org/10.1038/s41467-026-71647-x