{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T18:53:47Z","timestamp":1790967227167,"version":"4.1.0"},"reference-count":47,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"40","funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52471237"],"award-info":[{"award-number":["52471237"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Young Talent Support Plan of Xi'an Jiaotong University","id":[{"id":"https:\/\/ror.org\/017zhmm22","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2026,10,2]]},"abstract":"<jats:p>\n                    Rechargeable lithium-carbon dioxide (Li-CO\n                    <jats:sub>2<\/jats:sub>\n                    ) batteries offer great potential for greenhouse gas use and high-energy-density storage. However, their practical application is hindered by the formation of a thermodynamically stable Li\n                    <jats:sub>2<\/jats:sub>\n                    CO\n                    <jats:sub>3<\/jats:sub>\n                    (lithium carbonate) product that is hard to decompose during charging. Highly crystalline and conductive reticular material iron polyphthalocyanine (pFe\n                    <jats:sup>II<\/jats:sup>\n                    Pc) as a solid-state redox mediator into Li-CO\n                    <jats:sub>2<\/jats:sub>\n                    batteries tailors the cathode reaction pathway, enabling stable Li\n                    <jats:sub>2<\/jats:sub>\n                    C\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>4<\/jats:sub>\n                    (lithium oxalate) generation and an extraordinary discharge plateau of 3.2 V beyond the theoretical limit. Beyond delivering an ultrahigh discharge capacity of 28,790 milliampere-hours per gram and reversible cyclability over 1400 hours (cutoff capacity of 1000 milliampere-hours per gram) at 100 milliamperes per gram, the Li-CO\n                    <jats:sub>2<\/jats:sub>\n                    batteries exhibit excellent temperature adaptability (\u221240 to 80\u00b0C). The Li-CO\n                    <jats:sub>2<\/jats:sub>\n                    pouch cells using pFe\n                    <jats:sup>II<\/jats:sup>\n                    Pc as the solid-state redox mediator achieve a high energy density of 678 watt-hours per kilogram on the basis of total device mass and maintain reversible cycling for 251 hours. Our work pioneers a promising pathway toward practical high-efficiency Li-CO\n                    <jats:sub>2<\/jats:sub>\n                    batteries.\n                  <\/jats:p>","DOI":"10.1126\/sciadv.aei5080","type":"journal-article","created":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T17:59:16Z","timestamp":1790963956000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":0,"title":["Ultrahigh discharge voltage plateau of 3.2 V achieved in Li-CO\n                    <sub>2<\/sub>\n                    batteries using iron polyphthalocyanine"],"prefix":"10.1126","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3818-1250","authenticated-orcid":true,"given":"Ning","family":"Zhao","sequence":"first","affiliation":[{"name":"School of Chemistry, School of Electrical Engineering, Xi\u2019an Jiaotong University, Xi\u2019an 710061, ShaanXi, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-3828-9687","authenticated-orcid":true,"given":"Yi","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li-Min","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Chemistry, School of Electrical Engineering, Xi\u2019an Jiaotong University, Xi\u2019an 710061, ShaanXi, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han-Qi","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Chemistry, School of Electrical Engineering, Xi\u2019an Jiaotong University, Xi\u2019an 710061, ShaanXi, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6775-3213","authenticated-orcid":true,"given":"Zheng","family":"Meng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5683-0973","authenticated-orcid":true,"given":"Shu-Jiang","family":"Ding","sequence":"additional","affiliation":[{"name":"School of Chemistry, School of Electrical Engineering, Xi\u2019an Jiaotong University, Xi\u2019an 710061, ShaanXi, P. R. China."},{"name":"Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi\u2019an Jiaotong University, Xi\u2019an 710061, ShaanXi, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiang","family":"Wang","sequence":"additional","affiliation":[{"name":"China Automotive Technology and Research Center Intelligent Technology (Tianjin) Co., Ltd., Tianjin 300300, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9924-2776","authenticated-orcid":true,"given":"Xiao-Fei","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Chemistry, School of Electrical Engineering, Xi\u2019an Jiaotong University, Xi\u2019an 710061, ShaanXi, P. R. 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