Liu Jiamin, Zhou Ting, Shen Yun, Li Lixing, Zhu Yajun, Liu Jinyun
Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
Anhui Axxiva New Energy Technology Co., Ltd, Wuhu, Anhui 241002, P. R. China.
Chem Commun (Camb). 2024 Jul 30;60(62):8123-8126. doi: 10.1039/d4cc02684e.
Magnesium-lithium hybrid batteries (MLHBs) using a dual-ion electrolyte and safe Mg anode have promising potential for high-performance energy storage. Here, we develop an MLHB constructed of a hollow multi-layered NiS/CoS/carbon cathode and an all-phenyl-complex/lithium chloride (APC-LiCl) electrolyte. The hollow multi-layered structure and carbon matrix accommodate volumetric expansion and facilitate electrolyte penetration. The APC-LiCl electrolyte displays a stable electrochemical window. The MLHB shows a high specific capacity of 398 mA h g after 100 cycles at 0.2 A g, and a stable capacity at 1.0 A g after cycling 500 times. Moreover, stable rate performance and temperature tolerance are achievable. These findings would enable this design to be promising for developing other hybrid battery systems.
采用双离子电解质和安全镁阳极的镁锂混合电池（MLHBs）在高性能储能方面具有广阔的应用前景。在此，我们开发了一种由中空多层NiS/CoS/碳阴极和全苯基络合物/氯化锂（APC-LiCl）电解质构成的MLHB。中空多层结构和碳基体可适应体积膨胀并促进电解质渗透。APC-LiCl电解质具有稳定的电化学窗口。该MLHB在0.2 A g下循环100次后显示出398 mA h g的高比容量，在1.0 A g下循环500次后具有稳定的容量。此外，还可实现稳定的倍率性能和温度耐受性。这些发现将使这种设计在开发其他混合电池系统方面具有广阔前景。
