{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T12:52:24Z","timestamp":1773060744533,"version":"3.50.1"},"reference-count":34,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2021,6,25]],"date-time":"2021-06-25T00:00:00Z","timestamp":1624579200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004543","name":"China Scholarship Council","doi-asserted-by":"publisher","award":["201 806 400 066"],"award-info":[{"award-number":["201 806 400 066"]}],"id":[{"id":"10.13039\/501100004543","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Rechargeable potassium metal batteries are promising energy storage devices with potentially high energy density and markedly low cost. However, eliminating dendrite growth and achieving a stable electrode\/electrolyte interface are the key challenges to tackle. Herein, a novel \u201cquasi\u2010liquid\u201d potassium\u2010sodium alloy (KNA) anode comprising only 3.5\u00a0wt% sodium (KNA\u20103.5) is reported, which exhibits outstanding electrochemical performance able to be reversibly cycled at 4\u00a0mA cm<jats:sup>\u20132<\/jats:sup> for 2000 h. Moreover, it is demonstrated that adding a small amount of sodium hexafluorophosphate (NaPF<jats:sub>6<\/jats:sub>) into the potassium bis(fluorosulfonyl)imide electrolyte allows for the formation of the \u201cquasi\u2010liquid\u201d KNA on electrode surface. Comprehensive experimental studies reveal the formation of an unusual metastable KNa<jats:sub>2<\/jats:sub> phase during plating, which is believed to facilitate simultaneous nucleation and suppress the growth of dendrites, thereby improving the electrode's cycle lifetime. The \u201cquasi\u2010liquid\u201d KNA\u20103.5 anode demonstrates markedly enhanced electrochemical performance in a full cell when pairing with Prussian blue analogs or sodium rhodizonate dibasic as the cathode material, compared to the pristine potassium anode. Importantly, unlike the liquid KNA reported before, the \u201cquasi\u2010liquid\u201d KNA\u20103.5 exhibits good processability and can be readily shaped into sheet electrodes, showing substantial promise as a dendrite\u2010free anode in rechargeable potassium metal batteries.<\/jats:p>","DOI":"10.1002\/advs.202101866","type":"journal-article","created":{"date-parts":[[2021,6,26]],"date-time":"2021-06-26T01:59:56Z","timestamp":1624672796000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Novel Quasi\u2010Liquid K\u2010Na Alloy as a Promising Dendrite\u2010Free Anode for Rechargeable Potassium Metal Batteries"],"prefix":"10.1002","volume":"8","author":[{"given":"Zhixin","family":"Tai","sequence":"first","affiliation":[{"name":"Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL) Avenida Mestre Jose Veiga  Braga 4715\u2010330 Portugal"}]},{"given":"Yi","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Computer Vision and Systems (Ministry of Education), School of Computer Science and Engineering Tianjin University of Technology  Tianjin 300384 China"}]},{"given":"Yajie","family":"Liu","sequence":"additional","affiliation":[{"name":"Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL) Avenida Mestre Jose Veiga  Braga 4715\u2010330 Portugal"}]},{"given":"Lanling","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Physics Shandong University  Jinan 250100 China"}]},{"given":"Yu","family":"Ding","sequence":"additional","affiliation":[{"name":"Materials Science and Engineering Programme and Department of Mechanical Engineering The University of Texas at Austin  Austin TX 78712 USA"}]},{"given":"Ziyu","family":"Lu","sequence":"additional","affiliation":[{"name":"Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL) Avenida Mestre Jose Veiga  Braga 4715\u2010330 Portugal"},{"name":"School of Science China University of Geosciences  Beijing 100083 China"}]},{"given":"Zhijian","family":"Peng","sequence":"additional","affiliation":[{"name":"School of Science China University of Geosciences  Beijing 100083 China"}]},{"given":"Lijian","family":"Meng","sequence":"additional","affiliation":[{"name":"Centre of Innovation in Engineering and Industrial Technology, Instituto Superior de Engenharia do Porto Instituto Polit\u00e9cnico do Porto  Porto 4200\u2013465 Portugal"}]},{"given":"Guihua","family":"Yu","sequence":"additional","affiliation":[{"name":"Materials Science and Engineering Programme and Department of Mechanical Engineering The University of Texas at Austin  Austin TX 78712 USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2732-7399","authenticated-orcid":false,"given":"Lifeng","family":"Liu","sequence":"additional","affiliation":[{"name":"Clean Energy Cluster, International Iberian 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