摘要：Although a great deal of studies focus on the design of flexible energy storage devices(ESDs),their mechanical behaviors under bending states are still not sufficiently investigated,and the understanding of the corresponding structural conversion therefore still lags ***,we systematically and thoroughly investigated the mechanical behaviors of flexible all-in-one ESDs under bending deformation by the finite element *** influences of thicknesses,Young’s moduli and Poisson’s ratios of electrodes and electrolyte were taken into *** and quantified results including displacement,strain energy,von Mises stress,and tensile,compressive,and interfacial shear stress are demonstrated and *** on these results,significant conclusions are drawn for the design of flexible integrated ESDs with robust mechanical *** work will provide guidance for the design of ESDs with high flexibility.

摘要：The catalytic effect of electrode materials is one of the most crucial factors for achieving efficient electrochemical energy conversion and ***-based metal composites were widely synthesized and employed as electrode materials because of their inherited outstanding ***,electrode materials can provide a higher capacity than the anticipated values,even beyond the theoretical *** origin of the extra capacity has not yet been explained accurately,and its formation mechanism is still ***,we first summarized the current research progress and drawbacks in energy storage devices(ESDs),and elaborated the role of catalytic effect in enhancing the performance of ESDs as follows:promoting the evolution of the solid electrolyte interphase(SEI),accelerating the reversible conversion of discharge/charge products,and improving the conversion speed of the intermediate and the utilization rate of the active materials,thereby avoiding the shuttling ***,a particular focus was placed on the interaction between the catalytic effect and energy storage performance in order to highlight the efficacy and role of the catalytic *** hope that this review could provide innovative ideas for designing the electrode materials with an efficient catalytic effect for ESDs to promote the development of this research field.

摘要：Lithium-ion capacitors(LICs),consisting of a battery-like negative electrode and a capacitive porous-carbon positive electrode,deliver more than twice the energy density of electric double-layer ***,their wide application suffers from low energy density and reduced cycle life at high ***,hierarchical meso±microporous carbon nanospheres with a highly disordered structure and nitrogen/phosphorous co-doped properties were synthesized through a facile template *** hierarchical porous structure facilitates rapid ion transport,and the highly disordered structure and high heteroatom content provide abundant active sites for Li+charge *** experiments demonstrated that the carbon nanosphere anode delivers large reversible capability,greatly improves rate capability and exhibits excellent cycle *** LIC fabricated with the carbon nanosphere anode and an activated carbon cathode yields a high energy density of 103 W h kg^(-1),an extremely high power density of 44,630 W kg^(-1),and longterm cyclability of over 10,000 *** work presents how structural control of carbon materials at the nano/atomic scale can significantly enhance electrochemical performance,enabling new opportunities for the design of high-performance energy-storage devices.