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Herein, a multifunctional electrolyte additive, lithium acetylacetonate (LA), which integrates polar groups, a conjugated structure, and inert cations, is proposed to address these challenges. LA reconstructs the Zn\n                    <jats:sup>2+<\/jats:sup>\n                    solvation structure and disrupts the hydrogen\u2010bonding network of water to suppress side reactions, exhibits selective adsorption on the Zn (101) plane to induce ordered crystal texture and inhibit dendrites, and modulates interfacial ion dynamics to promote uniform Zn deposition. Benefiting from this multi\u2010dimensional optimization, the Zn\/\/Cu half batteries deliver an ultra\u2010high average coulombic efficiency of 99.97% over 4000 cycles, Zn\/\/Zn symmetric batteries maintain stable cycling for over 1500\u00a0h at 5 mA\u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    and 5 mAh\u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    , and Zn\/\/NH\n                    <jats:sub>4<\/jats:sub>\n                    V\n                    <jats:sub>4<\/jats:sub>\n                    O\n                    <jats:sub>10<\/jats:sub>\n                    full batteries retain 83% of the initial capacity after 10,000 cycles at 5 A\u00b7g\n                    <jats:sup>\u22121<\/jats:sup>\n                    . The universality of this molecular design strategy is further verified by analogous performance improvements of other metal acetylacetonate compounds with similar structural characteristics. This work provides a practical solution for boosting the long\u2010term cycling stability of AZIBs and establishes a new paradigm for the rational design of high\u2010performance electrolyte additives for aqueous multivalent metal batteries.\n                  <\/jats:p>","DOI":"10.1002\/smll.74886","type":"journal-article","created":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T10:25:31Z","timestamp":1785752731000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Lithium Acetylacetonate Mediated Multidimensional Optimization for Reversible Zn Anodes"],"prefix":"10.1002","volume":"22","author":[{"given":"Weilin","family":"Yan","sequence":"first","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"},{"name":"University of Science and Technology of China  Hefei Anhui People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lufan","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"},{"name":"University of Science and Technology of China  Hefei Anhui People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jikai","family":"Qiu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"},{"name":"University of Science and Technology of China  Hefei Anhui People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingzhu","family":"Wu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"},{"name":"University of Science and Technology of China  Hefei Anhui People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang","family":"Huang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"},{"name":"University of Science and Technology of China  Hefei Anhui People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hebei Computational Optical Imaging and Photoelectric Detection Technology Innovation Center Hebei International Joint Research Center For Computational Optical Imaging and Intelligent Sensing School of Mathematics and Physics Science and Engineering Hebei University of Engineering  Handan Hebei People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li'e","family":"Mo","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Meng","sequence":"additional","affiliation":[{"name":"Department of Physics Xingtai University  Xingtai Hebei People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0513-2999","authenticated-orcid":false,"given":"Linhua","family":"Hu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photovoltaic and Energy Conservation Materials CAS Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences  Hefei Anhui People's Republic of China"},{"name":"University of Science and Technology of China  Hefei Anhui People's Republic of 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