Lithium‐Salt Controlled Electrolyte and Flower‐Like Cobalt Sulfide Cathode for High‐Performance Magnesium Lithium Dual Ion Batteries
Source abstract
Abstract
Abstract Magnesium lithium dual ion batteries (MLIBs) possess the advantages of Mg anodes with low dendrite formation tendency, high volumetric capacity and abundant resources. The fast reaction kinetics of Li+ ions for the whole electrochemical redox processes contribute to provide high reversible capacity and long cycle life. In this study, we propose one type of MLIBs coupled with Mg anodes, flower‐like cobalt sulfide (CoS) cathodes, all‐phenyl complex (APC) and lithium chloride dissolved in tetrahydrofuran (THF) derived APC‐x LiCl/THF (x=0–0.8 mol L−1) electrolytes. By virtue of APC‐0.8 LiCl/THF electrolyte, the capacity of MLIB increases gradually to a high capacity of 507 mAh g−1 at 0.1 A g−1 and maintains a reversible capacity of 219 mAh g−1 at 0.5 A g−1 after 500 cycles. More significantly, Mg2+ and Li+ ions co‐conversion mechanism on the CoS cathodes is demonstrated for MLIBs. The systems studied here may offer insights in the design of MLIBs.
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Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Layered Double Hydroxides Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Engineering Shanghai University of Engineering Science Shanghai 201620 P. R. China
National Engineering Research Center of Light Alloy Net Forming School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
Center of Hydrogen Science Shanghai Jiao Tong University Shanghai 200240 P. R. China
Instrumental Analysis Center of SJTU Shanghai Jiao Tong University Shanghai 200240 P. R. China
Funding
National Natural Science Foundation of China · Science and Technology Commission of Shanghai Municipality
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