On August 4,Academician Xueliang Sun's team at EIT Ningbo published a study titled "Solid solvation structure design improves all-solid-state organic batteries" in Nature Chemistry. The work reports the use of n-type organic small-molecule cathode materials as "solvents," incorporating dual ions to construct a heteronuclear solid solvation structure. This approach activates a ligand-metal-ligand charge transfer pathway,achieving a high operating voltage of 3.6 V,an ultra-long cycle life exceeding 7,500 cycles,and excellent rate performance. This study introduces the concept of a "solid solvation structure," establishing a synergistic regulation theory linking molecular-electronic structure-electrochemical performance, providing a sustainable,high-performance,and low-cost new direction for all-solid-state batteries.  

Yang Hu,Ph.D. student at Western University,Canada; Dr. Han Su from Zhejiang University; and Dr. Jiamin Fu, postdoctoral fellow at Western University,Canada,are co-first authors of the paper. Assistant Professor Changhong Wang and Chair Professor Xueliang Sun of EIT Ningbo are co-corresponding authors. The work received support from Dr. Nian Zhang of the Shanghai Synchrotron Radiation Facility and Ning Chen and Mohsen Shakouri of the Canadian Light Source.