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Herein, we propose an intrinsic\u2010extrinsic dual\u2010stabilization strategy that integrates 2D binary Sb\n                    <jats:sub>0.6<\/jats:sub>\n                    Bi\n                    <jats:sub>0.4<\/jats:sub>\n                    nanosheets into 3D elastic graphene networks, constructing a highly dense monolithic architecture (HD\u2010Sb\n                    <jats:sub>0.6<\/jats:sub>\n                    Bi\n                    <jats:sub>0.4<\/jats:sub>\n                    @G). This design features with high density (2.6\u00a0g cm\n                    <jats:sup>\u22123<\/jats:sup>\n                    ) and electrical conductivity (555.6\u00a0S m\n                    <jats:sup>\u22121<\/jats:sup>\n                    ), delivering large volumetric capacity (1355.1\u00a0mAh cm\n                    <jats:sup>\u22123<\/jats:sup>\n                    ) and high areal capacity (11.4\u00a0mAh cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    ) at an ultra\u2010high loading of 27.6\u00a0mg cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    , along with long\u2010term cyclability (65.4% capacity retention after 1500 cycles) and stable full\u2010cell performance. Experimental and theoretical analyses reveal that the Sb\u2500Bi alloy exhibited \u201cbond softening\u201d with the optimized interlayer spacing and moderate bond energy, facilitating rapid K\n                    <jats:sup>+<\/jats:sup>\n                    diffusion and buffering strain. Furthermore, the elastic graphene network provides nanoscale confinement, accommodating volume expansion and preserving structural and electrical integrity. Strong electronic coupling at the alloy\u2010graphene interface further reduces K\n                    <jats:sup>+<\/jats:sup>\n                    adsorption and diffusion energy barriers, enabling fast ion transport under the high\u2010loading anodes. This intrinsic\u2010extrinsic synergy between binary\u2010alloy bond softening and nanoscale elastic confinement provides a universal strategy for compact, high\u2010loading electrodes with high volumetric and areal energy storage.\n                  <\/jats:p>","DOI":"10.1002\/anie.9686588","type":"journal-article","created":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T16:42:29Z","timestamp":1774284149000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Bond Softening and Elastic Confinement of Monolithic Dense Binary Alloys for High Volumetric Capacity of K\u2010Ion Battery Anodes"],"prefix":"10.1002","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8005-8207","authenticated-orcid":false,"given":"Yunyong","family":"Li","sequence":"first","affiliation":[{"name":"State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation School of Materials Science and Engineering Hainan University  Haikou P.R. 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhuhang","family":"Shao","sequence":"additional","affiliation":[{"name":"School of Materials and Energy Guangdong University of Technology  Guangzhou P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Materials and Energy Guangdong University of Technology  Guangzhou P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zaowen","family":"Zhao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation School of Materials Science and Engineering Hainan University  Haikou P.R. 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