{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T08:09:17Z","timestamp":1789718957395,"version":"4.0.1"},"reference-count":47,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2025,2,10]],"date-time":"2025-02-10T00:00:00Z","timestamp":1739145600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Open Found Project of the National-Local Joint Engineering Research Center for Persistent Pollutants Prevention Control and Resource Reuse, Jiangxi Province","award":["EL202280078"],"award-info":[{"award-number":["EL202280078"]}]},{"name":"Open Found Project of the National-Local Joint Engineering Research Center for Persistent Pollutants Prevention Control and Resource Reuse, Jiangxi Province","award":["23B150011"],"award-info":[{"award-number":["23B150011"]}]},{"name":"Key Research Projects of Henan Provincial Colleges and Universities","award":["EL202280078"],"award-info":[{"award-number":["EL202280078"]}]},{"name":"Key Research Projects of Henan Provincial Colleges and Universities","award":["23B150011"],"award-info":[{"award-number":["23B150011"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>One method to enhance the electrochemical performance of carbon-coated Li2FeSiO4 cathode material in lithium-ion batteries is to produce an ideal Li2FeSiO4 precursor with minimal impurities. A novel precursor for Li2FeSiO4 (Li2O\u00b7FeCO3\u00b7CH3OSiO2H) was synthesized through a methanol solvothermal reaction under stringent conditions (180 \u00b0C and 2.7 MPa), achieving a purity level of 93.2%. During synthesis, the new Li2FeSiO4 precursor exhibits unique self-purification properties and maintains a fine morphology after annealing. The resulting carbon-coated Li2FeSiO4 composites demonstrate a Brunauer\u2013Emmett\u2013Teller specific surface area of 102.4 m2\/g and approximately 81% mesoporous volume, with 90% of the pore sizes measuring less than 39 nm. As a cathode material for lithium-ion batteries, this carbon-coated Li2FeSiO4 exhibits initial specific capacities of 172.3 mAh\/g (charge) and 159.3 mAh\/g (discharge). Remarkably, nearly 50% of the theoretical specific capacity remains after 1300 cycles at a rate of 0.1 C. The excellent electrochemical performance of the carbon-coated Li2FeSiO4 materials is demonstrated by their high lithium-ion diffusivity (DLi+) value of 1.26 \u00d7 10\u221211 cm2\/s. Additionally, the enormous capacities-controlled diffusion contribution, which accounts for 70% of the total diffusion at a rate of 1C, is noteworthy. This performance can be attributed to the high purity of the carbon-free Li2FeSiO4 composite, which contains 91% Li2FeSiO4, as well as its favorable morphology.<\/jats:p>","DOI":"10.3390\/molecules30040808","type":"journal-article","created":{"date-parts":[[2025,2,12]],"date-time":"2025-02-12T11:08:51Z","timestamp":1739358531000},"page":"808","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Efficient Preparation of Li2FeSiO4\/C with High Purity and Excellent Electrochemical Performance in Li-Ion Batteries"],"prefix":"10.3390","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-5554-5136","authenticated-orcid":false,"given":"Jinhai","family":"Cui","sequence":"first","affiliation":[{"name":"Henan Engineering Center of New Energy Battery Materials, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5167-6866","authenticated-orcid":false,"given":"Dezhi","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mengna","family":"Xie","sequence":"additional","affiliation":[{"name":"School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongheng","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Material and Chemical Engineering, Kaifeng University, Kaifeng 475000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuai","family":"Dong","sequence":"additional","affiliation":[{"name":"Henan Engineering Center of New Energy Battery Materials, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8435-5313","authenticated-orcid":false,"given":"Wei","family":"Wei","sequence":"additional","affiliation":[{"name":"Henan Engineering Center of New Energy Battery Materials, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2152","DOI":"10.1039\/C6EE01134A","article-title":"Electrochemical performance of Li2FeSiO4 as a new Li-battery cathode material","volume":"6","author":"Lee","year":"2016","journal-title":"Energ. 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