Boosting lithium ion conductivity of antiperovskite solid electrolyte by potassium ions substitution for cation clusters oleh Lei Gao, Xinyu Zhang, Jinlong Zhu, Songbai Han, Hao Zhang, Liping Wang, Ruo Zhao, Song Gao, Shuai Li, Yonggang Wang, Dubin Huang, Yusheng Zhao, Ruqiang Zou