{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T18:11:23Z","timestamp":1790014283288,"version":"4.0.1"},"reference-count":29,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T00:00:00Z","timestamp":1789776000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11672198"],"award-info":[{"award-number":["11672198"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"award":["11672198"],"award-info":[{"award-number":["11672198"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation","award":["2024-ERC-9011580324"],"award-info":[{"award-number":["2024-ERC-9011580324"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Separators dominate lithium-ion battery (LIB) safety by isolating electrodes, guiding Li+ transport and avoiding short circuits. However, commercial polypropylene (PP) separators suffer from inferior electrolyte wettability, severe thermal shrinkage, and insufficient suppression of lithium dendrite growth. Herein, garnet-type Li7La3Zr2O12 (LLZO) nanofibers were synthesized via spherical section free surface electrospinning (SSFSE) followed by calcination. LLZO nanofiber-modified PP separators (LLZO@PP) were fabricated by coating a single side of PP separators with the as-synthesized LLZO nanofibers. Systematic morphological, structural and electrochemical characterizations reveal that the modified LLZO@PP separators exhibit improved thermal stability and electrolyte wettability compared with the pristine PP separator. The optimized LLZO@PP separator delivers a high ionic conductivity of 0.571 mS cm\u22121 and a wide electrochemical window of 4.8 V at 25 \u00b0C. Furthermore, the Li\/\/LiFePO4 half-cell assembled with the optimal LLZO@PP separator achieves a capacity retention of 90.21% after 100 cycles at 0.5 C. This work offers a facile and scalable route to construct LLZO nanofiber-modified composite separators, which can effectively improve the safety and superior electrochemical performance of high-performance LIBs.<\/jats:p>","DOI":"10.3390\/ma19183991","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T17:23:17Z","timestamp":1790011397000},"page":"3991","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Li7La3Zr2O12 Nanofiber-Modified Polypropylene Composite Separator for High-Performance Lithium-Ion Batteries"],"prefix":"10.3390","volume":"19","author":[{"given":"Yuxing","family":"Liu","sequence":"first","affiliation":[{"name":"National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, Suzhou 215123, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"investigation","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"software","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"validation","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2185-4104","authenticated-orcid":false,"given":"Lan","family":"Xu","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, Suzhou 215123, China"},{"name":"Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production, Soochow University, Suzhou 215123, China"},{"name":"Jiangsu Advanced Textile Engineering Technology Center, Nantong 226007, China"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"funding-acquisition","vocabulary":"credit"},{"role":"project-administration","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"5552\u22125592","DOI":"10.1039\/D3CS00898C","article-title":"Recycling of spent lithium-ion batteries for a sustainable future: Recent advancements","volume":"53","author":"Biswal","year":"2024","journal-title":"Chem. 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Polymers, 15.","DOI":"10.3390\/polym15183654"}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/19\/18\/3991\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T17:37:05Z","timestamp":1790012225000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/19\/18\/3991"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,19]]},"references-count":29,"journal-issue":{"issue":"18","published-online":{"date-parts":[[2026,9]]}},"alternative-id":["ma19183991"],"URL":"https:\/\/doi.org\/10.3390\/ma19183991","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,19]]}}}