Constructing sheet-assembled hollow CuSe nanocubes to boost the rate capability of rechargeable magnesium batteries

Abstract

Sheet-assembled hollow CuSe nanocubes are fabricated by a facile template-directed selenation method and exhibit record rate capability among the chalcogenide compounds reported so far.

A Pyrite Iron Disulfide Cathode with a Copper Current Collector for High‐Energy Reversible Magnesium‐Ion Storage

“…Considering the average discharge voltage and the maximum discharge capacity of the FeS 2 cathode at 50 mA g −1 , a gravimetric energy density of 714 Wh kg −1 can be achieved. This value is superior to those of various transition-metal chalcogenide cathodes for RMBs (Figure 2d), [4,[16][17][18][19][20][21][22]33,59,[65][66][67][68][69][70][71][72][73][74][75] indicative of the high-energy performance of the FeS 2 cathode in RMBs. In terms of the rate performance, the FeS 2 cathode exhibits a clear capacity decrease with the increase in the current density (Figure S6, Supporting Information).…”

“…d) Specific capacity and gravimetric energy density values of the as-prepared FeS 2 cathode and some previously reported metal chalcogenide cathodes in RMBs or hybrid batteries using Mg metal anode. [4,[16][17][18][19][20][21][22]33,59,[65][66][67][68][69][70][71][72][73][74][75] e) Cycling performance of the FeS 2 cathodes at 200 or 400 mA g −1 after activation of 15 cycles at 50 mA g −1 .…”

“…Figure 2. a) CV curves at 0.1 mV s −1 , b) galvanostatic charge and discharge profiles at 50 mA g −1 ,and c) cycling performance and coulombic efficiency at 50 mA g −1 for the FeS 2 cathodes. d) Specific capacity and gravimetric energy density values of the as-prepared FeS 2 cathode and some previously reported metal chalcogenide cathodes in RMBs or hybrid batteries using Mg metal anode [4,[16][17][18][19][20][21][22]33,59,[65][66][67][68][69][70][71][72][73][74][75]. e) Cycling performance of the FeS 2 cathodes at 200 or 400 mA g −1 after activation of 15 cycles at 50 mA g −1 .…”

A novel rose-with-thorn ternary MoS2@carbon@polyaniline nanocomposite as a rechargeable magnesium battery cathode displaying stable capacity and low-temperature performance

“…Du et al used a simple templatedirected selenization reaction to construct thin-film-assembled hollow CuSe nanocubes at room temperature. 9 Copper selenide Cu 2-…”

Encapsulating Metal-Organic-Framework Derived Nanocages into a Microcapsule for Shuttle Effect-Suppressive Lithium-Sulfur Batteries

“…In order to address those issues, many studies have been reported, in which the synthesis of yolk-shell structure hosts is considered to be a potential strategy [8][9][10]. Zhang et al reported a yolk-shell ZnO by using a hydrothermal method, which provided a specific capacity of 1406 mAh g −1 at 0.1C [11].…”