The fast-growing requirements for high-energy-density Li-ion batteries (LIBs) have prompted the research and development of Li-metal batteries (LMBs) because Li metal has a high theoretical specific capacity of 3860 mA h g ^–1 and a low redox potential (−3.04 v.s. standard hydrogen electrode, SHE). However, the dendrite formation of Li metal during Li plating and stripping has exerted an enormous impedance in its commercial application. Consequently, it is imperative to exploit effective strategies to eliminate the existing issues. Three-dimensional (3D) ordered Li anode architectures with large surface area and void space, which are capable of lowering the surface current density and affording confined space to accommodate Li plating, consequently suppressing Li dendrite formation and ameliorating undesirable volume changes. More importantly, its well-aligned micro-channels can provide fast pathways for Li ion transport and promote uniform Li plating. Therefore, fabricating 3D ordered architectures is expected to remarkably boost the electrochemical stability and performance of Li anode during cycling. Herein, the important researches on the design of 3D ordered Li anode architectures for LIBs, including flexible anode, are summarized in detail. Emphasis is laid on illuminating the mechanism and the correlation between the 3D-ordered Li microstructures and the electrochemical performance of the LMBs. Furthermore, challenges and forthcoming opportunities in this promising research field are explicitly indicated. It is anticipated that this review could afford a beneficial reference to initiate further innovation in research and development of practical 3D Li anode for high-energy and safe LMBs.

It is generally found that enhancement in catalytic activity comes at the expense of selectivity or stability. In this study, an SO_x²⁻-modified Mn₂O₃ (SO-Mn₂O₃) solid catalyst was prepared using a simple oxalate precipitation method. This catalyst exhibited not only high catalytic activity but also high selectivity and good cycling stability. The degradation ratio of bisphenol A (BPA) under SO-Mn₂O₃ activated potassium peroxymonosulfate (PMS) achieved over 99% within 10 min, and the mineralization ratio increased to 83.2%. Particularly, the degradation rate for BPA under the SO-Mn₂O₃/PMS system was 15 times that of Mn₂O₃. Furthermore, the degradation ratio remained at 93.3% after five consecutive cycles. Multiple experimental characterizations confirmed that the introduction of SO_x²⁻ into Mn₂O₃ shifted the oxidative degradation pathway from a mixture of radical and non-radical routes to a predominantly non-radical pathway. This suppressed radical generation promoted the selective formation of high-valence metallic-oxo (Mn(V)=O) species and singlet oxygen (¹O₂), thereby significantly enhancing the catalytic activity. In addition, the SO-Mn₂O₃/PMS system exhibited broad applicability towards the degradation of other phenolic pollutants, strong anti-interference capability against complex water matrices, and suitability for efficient removal of organic contaminants in such environments. This research offers new perspectives for the design of selective catalysts for PMS activation.