Abstract
Lithium–sulfur batteries have been considered a promising energy storage technology for maximizing sustainability, owing to their ultrahigh theoretical energy density and the abundant supply of low-cost sulfur. However, their high-energy advantage is often compromised in practice by the heavy, voluminous host materials and catalysts required to mitigate the polysulfide shuttle effect and sluggish redox kinetics. Here we address this dilemma by spatially coupling adsorption and catalytic sites within an sp-nitrogen-doped graphdiyne multishelled architecture. This design enables an exceptional sulfur loading of 93.9%, achieving a close-to-theoretical capacity of 1,462 mAh g(S+host)−1 and a pouch-cell energy density of ~457 Wh kg−1. Even at a high rate of 10C, the system maintains an energy density of 1,384.5 Wh kg(S+host)−1 over 600 cycles. In situ spectroscopic characterizations and theoretical calculations reveal that the favourable orbital overlapping between sp-nitrogen and neighbouring carbon facilitates rapid electron transfer and optimized charge redistribution, thus simultaneously promoting the adsorption and redox reaction of polysulfides. By minimizing inactive mass, this work provides a scalable blueprint for high-performance, resource-efficient battery chemistries.
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Acknowledgements
This work was supported by the Natural Science Foundation of China (grant nos. 52025028 to L.L., 52372170 to R.Y., 92572205 to D.W., 52261160573 and 52301296 to J. Wang), the National Key R&D Program (grant nos. 2024YFA1509400 and 2022YFA1204500 to D.W., 2022YFA1504101 to J. Wang, 2021YFB2400300 to Z.L.), Shenzhen University 2035 Program for Excellent Research (grant no. 2024B005 to R.Y. and D.W.), the Zhongke-Yuneng Joint R&D Center Program (grant no. ZKYN2022008 to D.W.), Hebei Provincial Department of Science and Technology - Basic Research Cooperation Project of Beijing-Tianjin-Hebei Region (grant no. B2024204027 to R.Y.), the Beijing Natural Science Foundation (grant no. Z230019 to J. Wang) and the Institute of Process Engineering (IPE) Project for Frontier Basic Research grant no. QYJC-2022-008 to J. Wang. D.W. thanks the Financial Support for Outstanding scientific and technological innovation Talents Training Fund in Shenzhen. We thank Y. Li and H. Liu from Institute of Chemistry, Chinese Academy of Sciences, for their help with the HEB-TMS chemical. We thank H. Pang and Y. Su from Yangzhou University for their help with in situ UV–vis test. We thank K. Zhang and H. Zhu from Nankai University for their help with in situ FTIR test.
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D.W. conceived the idea and supervised the research. R.Y. and J. Wang supervised the research. R.B. performed experiments and basic characterizations. D.W., R.Y., J. Wang, R.B., Z.L. and L.L. analysed and discussed the experimental data. J. Wan helped with the XANES experiments. L.Z., M.S. and B.H. carried out the DFT calculations. B.L. helped with the pouch-cell assembly and tests. Y.Z. helped with XPS experiments. R.B. and J. Wang drafted the manuscript. D.W., R.Y., Z.L. and L.L. revised and improved the manuscript. All authors read and approved the final manuscript.
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Bi, R., Wang, J., Wan, J. et al. Spatially coupled adsorption and catalysis for sustainable lithium–sulfur batteries. Nat Sustain (2026). https://doi.org/10.1038/s41893-026-01794-y
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DOI: https://doi.org/10.1038/s41893-026-01794-y


