Rechargeable Aluminum-Ion Battery Based on MoS₂ Microsphere Cathode

Abstract

In recent years, a rechargeable aluminum-ion battery based on ionic liquid electrolyte is being extensively explored due to three-electron electrochemical reactions, rich resources, and safety. Herein, a rechargeable Al-ion battery composed of MoS microsphere cathode, aluminum anode, and ionic liquid electrolyte has been fabricated for the first time. It can be found that Al intercalates into the MoS during the electrochemical reaction, whereas the storage mechanisms of the electrode material interface and internal are quite different. This result is confirmed by ex situ X-ray photoelectron spectroscopy and X-ray diffraction etching techniques. Meanwhile, this aluminum-ion battery also shows excellent electrochemical performance, such as a discharge specific capacity of 253.6 mA h g at a current density of 20 mA g and a discharge capacity of 66.7 mA h g at a current density of 40 mA g after 100 cycles. This will lay a solid foundation for the commercialization of aluminum-ion batteries.

Design and Construction of Sodium Polysulfides Defense System for Room‐Temperature Na–S Battery

“…However, the pores are completely covered after the uniform coating of HCS/MoS 2 (Figure 2h). [31] Meanwhile, a peak of 23.7° shows the carbon matrix of the HCS in Figure 2j. To confirm the purity and crystal phase, the composite was further characterized by X-ray diffraction (XRD).…”

How does Molybdenum Disulfide Store Charge: A Minireview

“…As early as 1980, prelithiated MoS 2 was applied and patented as ac athode material. [15a] In recent years,M oS 2 has been used as cathode materiali nv arious multivalent metal-ion batteries, such as zinc-, [16] magnesium-, [17] and aluminum-ion [18] batteries. When used as anode materials in LIBs, nanostructured MoS 2 can exhibit high capacities up to 1000-1200 mAh g À1 ,which is much higherthan its theoretical capacity of 670 mAh g À1 while bulk MoS 2 is inactivet owards Li + and shows poor cycling stability.…”

A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries

“…These results demonstrated the potential of RABs for practical applications. To improve the performance of RABs, several kinds of cathode, including modified graphites,10–12 graphene nanosheets,13–15 carbon‐based materials,16–18 transition metal oxides,19–21 and metal sulfides,22–25 have been developed. However, the IL electrolyte has received much less attention.…”

“…These results demonstrated the potential of RABs for practical applications. To improve the performance of RABs, several kinds of cathode, including modified graphites, [10][11][12] graphene nanosheets, [13][14][15] carbon-based materials, [16][17][18] transition metal oxides, [19][20][21] and metal sulfides, [22][23][24][25] have been developed. However, the IL electrolyte has received much less attention.An electrolyte plays a crucial role in determining the battery charge-discharge behavior, cycling stability, and safety properties.…”