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Fe‐based mixed phosphate cathodes for Na‐ion batteries usually possess weak rate capacity and cycle stability challenges resulting from sluggish diffusion kinetics and poor conductivity under the relatively low preparation temperature. Here, the excellent sodium storage capability of this system is obtained by introducing the high‐entropy doping to enhance the electronic and ionic conductivity. As...
The multiple issues of unstable electrode/electrolyte interphases, sluggish reaction kinetics, and transition‐metal (TM) dissolution have long greatly affected the rate and cycling performance of cathode materials for Na‐ion batteries. Herein, a multifunctional protein‐based binder, sericin protein/poly(acrylic acid) (SP/PAA), is developed, which shows intriguing physiochemical properties to address...
The development of high energy/power density sodium‐ion batteries (SIBs) is still challenged by the high redox potential of Na/Na+ and large radius of Na+ ions, thus requiring extensive further improvement to, in particular, enhance the capacity and voltage of cathode materials. Among the various types of cathodes, the polyanion cathodes have emerged as the most pragmatic option due to their outstanding...
Developing high‐voltage cathode materials is critical for sodium‐ion batteries to boost energy density. NASICON (Na super‐ionic conductor)‐structured NaxMnM(PO4)3 materials (M represents transition metal) have drawn increasing attention due to their features of robust crystal framework, low cost, as well as high voltage based on Mn4+/Mn3+ and Mn3+/Mn2+ redox couples. However, full activation of Mn...
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