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Under the strategic concept of "Healthy China," communities are not only basic units to compose a healthy city, but also main bodies to fulfill the goal of "health for all" and healthy city development. Since the end of the last century, healthy community research and related practice have seen rapid development in both China and abroad. This paper systematically reviews and compares the concepts, theories, and practices related to healthy community since the 1990s, and analyzes the influencing factors and their acting paths of healthy community in terms of healthy housing, healthy environment, healthy neighborhood, and health services. In the end, the paper points out the main problems in healthy community research and practice and proposes development prospects. It suggests that in the future, efforts should be made to further strengthen the interdisciplinary and cross-level collaboration for healthy community, improve the systematic study on the influencing mechanism of healthy community, enhance the exploration of the whole-process implementation mechanism, and promote the research and construction of intelligent healthy community. [ABSTRACT FROM AUTHOR]

Layered metal oxide NaFeO2 has been recognized is a promising cathode material for high‐energy sodium‐ion batteries (SIBs) due to its low cost and high capacity. However, its poor structural stability during the Na+ insertion/extraction results in capacity degradation and a short cycle life. Elemental doping is a very promising method to improve its performance. Here, layered iron‐based oxides (NaFeO2 or NaFeMeO2 [Me=manganese, nickel, and so on]) were doped with different elements (manganese, nickel, copper, fluorine, etc.) and their performance as cathode materials of SIBs are reviewed and analyzed. We found that synergistic doping with multiple cations can improve sodium storage performance. Moreover, anionic doping is also worth exploring to improve the crystal structure and the sodium storage of these materials. [ABSTRACT FROM AUTHOR]