{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T15:40:41Z","timestamp":1785426041136,"version":"3.56.0"},"reference-count":32,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T00:00:00Z","timestamp":1777075200000},"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":["21865021"],"award-info":[{"award-number":["21865021"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"award":["21865021"],"award-info":[{"award-number":["21865021"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Inner Mongolia Key Technology Project","award":["2020GG0166"],"award-info":[{"award-number":["2020GG0166"]}]},{"name":"Major Science and Technology Project of Hohhot"},{"name":"Inner Mongolia Association for Science and Technology\u2019s Young Talent Support Program for Doctoral Students","award":["QTBS2509"],"award-info":[{"award-number":["QTBS2509"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Lithium iron phosphate (LiFePO4) (LFP) has emerged as the most popular cathode material in the current lithium battery market because of its stable charge\u2013discharge cycle performance, low cost, and high safety. Moreover, this material does not require scarce resources such as nickel and cobalt, which alleviates supply chain conflicts and reduces the environmental and health impacts associated with Ni and Co. In this study, a cost-effective preparation method is implemented to synthesize a series of all-element integrated LiFePO4 precursors using precursor solutions with varying concentrations of oxalic acid. The final LFP materials are subsequently obtained through a one-step heat treatment. To evaluate the advantages of this method, we compare the structural and electrochemical properties of the obtained LFP materials with those synthesized via the traditional solid-phase method. The experimental results reveal that the LFP material synthesized using an oxalic acid solution with a concentration of 0.125 mol L\u22121 exhibits optimal performance. This material has a grain size in the range of 300\u2013500 nm, which is smaller and more uniform than those of the other samples. This initial specific discharge capacity of the designed LFP is 150.3 mAh\u00b7g\u22121, with an initial coulombic efficiency of 88%. Notably, the material maintains a high capacity of 98 mAh\u00b7g\u22121 even at \u221220 \u00b0C and achieves a discharge capacity of 98.7 mAh\u00b7g\u22121 at a high discharge rate of 5 C. The lithium-ion diffusion coefficient was determined to be 7.1 \u00d7 10\u221212 cm2 s\u22121, which is approximately 2.5 times greater than that of the material synthesized via the solid-phase ball-milling method. These results highlight the significant improvements in both the structural and electrochemical properties of LFP materials synthesized through this novel liquid-phase method.<\/jats:p>","DOI":"10.3390\/molecules31091419","type":"journal-article","created":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T07:49:36Z","timestamp":1777362576000},"page":"1419","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Synthesis of Lithium Iron Phosphate Materials via an All-in-One Integrated Liquid Phase Method"],"prefix":"10.3390","volume":"31","author":[{"given":"Shixiang","family":"Sun","sequence":"first","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo","family":"Liao","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaotao","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinyu","family":"Tan","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingwen","family":"Cui","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingqun","family":"Li","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6546-8945","authenticated-orcid":false,"given":"Wei","family":"Li","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"},{"name":"Inner Mongolia Key Laboratory of Applied Condensed Matter Physics, Hohhot 010022, China"},{"name":"Inner Mongolia Engineering Research Center for Rare Earth Functional and New Energy Storage Materials, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yidan","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China"},{"name":"Inner Mongolia Key Laboratory of Applied Condensed Matter Physics, Hohhot 010022, China"},{"name":"Inner Mongolia Engineering Research Center for Rare Earth Functional and New Energy Storage Materials, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siqin","family":"Zhao","sequence":"additional","affiliation":[{"name":"Inner Mongolia Engineering Research Center for Rare Earth Functional and New Energy Storage Materials, Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Cao","sequence":"additional","affiliation":[{"name":"China Tower Corporation Inner Mongolia Autonomous Region Branch, Hohhot 010050, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Huang","sequence":"additional","affiliation":[{"name":"Inner Mongolia Shengfan Technology Co., Ltd., Hohhot 010022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"4649","DOI":"10.1016\/j.electacta.2005.02.026","article-title":"An investigation of polypyrrole-LiFePO4 composite cathode materials for lithium-ion batteries","volume":"50","author":"Wang","year":"2005","journal-title":"Electrochim. 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