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Improving the performance of anode materials for lithium-ion batteries (LIBs) is ah otly debated topic. Herein, hollow NiÀCo skeleton@MoS 2 /MoO 3 nanocubes (NCM-NCs), with an average size of about1 93 nm, have been synthesized through af acile hydrothermal reaction. Specifically, MoO 3 /MoS 2 composites are grown on NiÀCo skeletons derived from nickel-cobaltP russian blue analogue nanocubes (NiÀCo PBAs). The NiÀCo PBAs were synthesized through a precipitation method and utilized as self-templates that provided al arger specific surface area for the adhesion of MoO 3 /MoS 2 composites. According to Raman spectroscopy results,a s-obtained defect-richM oS 2 is confirmed to be a metallic 1T-phase MoS 2 .F urthermore, the average particle size of NiÀCo PBAs ( % 43 nm) is only about one-tenth of the previously reported particles ize ( % 400 nm). If assessed as anodes of LIBs, the hollow NCM-NC hybrids deliver an excellent rate performance and superiorc ycling performance (with an initial discharge capacity of 1526.3 mAh g À1 and up to 1720.6 mAh g À1 after 317 cycles under ac urrent density of 0.2 Ag À1 ). Meanwhile, ultralong cycling life is retained, even at high current densities (776.6 mAh g À1 at 2Ag À1 after 700 cycles and 584.8 mAh g À1 at 5Ag À1 after 800 cycles). Moreover,a tarate of 1Ag À1 ,t he average specific capacity is maintained at 661 mAh g À1 .T hus,t he hierarchical hollow NCM-NC hybridsw ith excellent electrochemical performance are ap romising anodem aterial for LIBs.[a] J.Supporting information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

Novel ternary Fe-Sn-P alloys prepared by simple single-step electrodeposition are investigated as promising anodes for Li-ion batteries. The Fe 51 Sn 38 P 11 electrode, in particular, shows outstanding Li-storage properties, with initial specific discharge/charge capacities of 857.8 and 655 mA h g ¿1 , respectively. The reversible capacity remains stable at 427 mA h g ¿1 , even after 90 cycles, corresponding to a coulombic efficiency of 96% and a capacity retention of 65%. The cauliflower-like morphology of the above anode is well preserved after 90 cycles, suggesting that this alloy could significantly mitigate the electrode volume expansion by exerting a positive multiphase synergistic effect. The superior electrochemical performance of the ternary Fe-Sn-P alloys confirmed its potential as an alternative Li-ion storage anode; the large-scale suitability of the developed electroplating method provides an additional advantage.

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Designing hetero-nanostructures is widely recognized as an effective modification strategy to obtain ZnO/Co 3 O 4 anode materials with superior electrochemical properties. However, the lithium-ion storage behavior of ZnO/Co 3 O 4 has not reached a satisfied performance. Herein, based on our previous DFT results that the interface of ZnO(110)/Co 3 O 4 (220) hetero-nanostructure possesses fast reaction kinetics because of more negative surface adsorption energy and lower diffusion barrier energy of lithium ions, we developed ZnO(110)/Co 3 O 4 (220)@C hetero-nanostructures with both abundant interfaces and uniform mesopores structure derived from 2D MOF precursor. Especially, ZnO/Co 3 O 4 @C hybrid materials with ZnO(110)/ Co 3 O 4 (220) hetero-nanostructure show strong electronic inter-actions and the widen distance of the crystal plane at the interface, resulting in stable hetero-nanostructures with faster ion diffusion channel and more active sites. Moreover, this material possesses uniform mesopores and 2D structure, which enables quicker transport capability and cycling longevity for lithium-ion storage. Impressively, when ZnO/Co 3 O 4 @C was used as anodes in lithium-ion batteries, the electrodes deliver improved initial specific capacities (1,630.5 and 1,496.9 mAh g À 1 at 0.2 and 0.5 A g À 1 ), excellent capacity retention (1,758.3 mAh g À 1 after 370 cycles at 0.2 A g À 1 , and 607.7 mAh g À 1 up to 650 cycles at 5 A g À 1 ), and superior rate capacity (937 and 468 mAh g À 1 at 1.0 and 5.0 A g À 1 after 360 cycles).