Photocatalytic water-splitting with Z-scheme semiconductor heterojunctions is a promising way to achieve renewable solar fuels. Nevertheless, developing earth-abundant direct Z-scheme photocatalytic systems for efficient H2 production is still under-developed. In...

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Photocatalytic water-splitting employing the Z-scheme semiconductor systems mimicking natural photosynthesis is regarded as a promising way to achieve the efficient soalr-to-H2 conversion. Nevertheless, it still remains a big challenge to...

Lithium‐based batteries (LBBs) have virtually dominated the energy storage market for electronic products and electric vehicles. In these batteries, the critical roles of polymers cannot be ignored. In this article, state‐of‐the‐art developments and perspectives for improving the safety and stability of LBBs using polymers are summarized. These materials are particularly used as separator decorations, solid‐state electrolytes, binders, and fire retardants. Polymers exhibit excellent performance as binders for Si anodes because of their long chains and high adhesion ability. This review focuses on the application of polymers to Li–S batteries based on their fundamental electrochemistry and the challenges arising from the dissolution of polysulfides. In addition, the dendrite growth inhibition ability and mechanism of polymeric artificial solid electrolyte interphase film and solid‐state electrolytes are described. The performance of polymer as fire retardant and the mechanism for solid‐state polymer electrolytes are elaborated. Finally, the perspectives on the potential of polymers for LBBs and energy storage because of their outstanding plasticity and chemical controllability are presented.