Nature CommunicationsAxial ligand induces the charge localization of Ca single-atom sites for efficient Na–S batteriesFangcai ZhengYuhang ZhangZhiqiang LiGe YaoLingzhi WeiChanglai WangQianwang ChenHui Wang2025-05-12Full textDOI https://doi.org/10.1038/s41467-025-59437-3