Article(id=1314907735007789392, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907656704324517, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2026.01.033, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1753804800000, receivedDateStr=2025-07-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791428033830, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791428033830, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791428033830, creator=13701087609, updateTime=1791428033830, updator=13701087609, issue=Issue{id=1314907656704324517, tenantId=1146029695717560320, journalId=1235980550691926019, year='2026', volume='46', issue='1', pageStart='1', pageEnd='206', issueExtLink='null', onlineDate='null', pubDate='1769875200000', pubDateStr='2026-02-01', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791428015160, creator='13701087609', updateTime=1791430491940, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314918045139690301, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907656704324517, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314918045139690302, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907656704324517, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=197, endPage=201, ext={EN=ArticleExt(id=1314907735876010321, articleId=1314907735007789392, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Preparation Process Optimization for High-Performance Battery-Grade Iron Phosphate, columnId=1236276108207902848, journalTitle=Mining and Metallurgical Engineering, columnName=MATERIALS, runingTitle=null, highlight=null, articleAbstract=

To improve synthesis efficiency and performance of iron phosphate (FePO4) product, a precursor for cathode materials of lithium-ion batteries, a two-step process consisting of oxidation-precipitation, and conversion was proposed to prepare iron phosphate with ferrous sulfate and ammonium phosphate as raw materials. The effects of key parameters, such as addition amount of hydrogen peroxide (oxidant), feeding rate, and reaction temperature, on the particle size distribution (D50), purity, and Fe/P ratio of the product were investigated. The optimized process conditions were determined as follows:oxidation at a temperature of 40 ℃ for 2 h by adding hydrogen peroxide at an amount of 1.25 times the theoretical dosage and feeding material for 50 min in the oxidation stage; precipitation at a temperature of 40 ℃ by feeding ammonium phosphate for 50~55 min in the precipitation stage; and with phosphoric acid at concentration of 0.6 mol/L and a temperature of 90 ℃ for the conversion stage. As a result, a high-purity iron phosphate with D50 of 3.0 μm, impurity content lower than 0.01%, and Fe/P at a molar ratio of 0.997 can be successfully prepared. SEM and XRD characterization results show that the product consists of regular spherical secondary particles formed with densely stacked primary lamellar crystals, presenting higher degree of crystallinity.

, authors=Huan HUANG1, Zhongyi ZHANG1, Qian LAN2, Zhifu WANG3, 4, 5, 6, Qi CHENG3, authorsList=Huan HUANG, Zhongyi ZHANG, Qian LAN, Zhifu WANG, Qi CHENG, authorCompany=null, correspAuthors=Qi CHENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314907737046221138, articleId=1314907735007789392, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=高性能电池级磷酸铁制备工艺优化研究, columnId=1236276110049202322, journalTitle=矿冶工程杂志, columnName=材料, runingTitle=null, highlight=null, articleAbstract=

为提高锂离子电池正极材料前驱体磷酸铁(FePO4)的合成效率与产品性能,以硫酸亚铁和磷酸铵为原料,采用“氧化沉淀-转化”两步法制备磷酸铁,探究了氧化剂过氧化氢添加量、投料速率、反应温度等关键参数对产物粒径分布(D50)、纯度及铁磷比的影响。确定的优化工艺条件为:氧化阶段过氧化氢添加量为理论量的1.25倍、投料时长50 min、氧化温度40 ℃、氧化时间2 h,沉淀阶段磷酸铵投料时长50~55min、沉淀温度40 ℃,转化阶段转化温度90 ℃、磷酸浓度0.6 mol/L。在此条件下成功制备出D50为3.0 μm、杂质含量低于0.01%、Fe/P物质的量比0.997的高纯度磷酸铁。SEM与XRD表征结果显示产品为片状一次颗粒堆积而成的规则球形二次颗粒,结晶度良好。

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黄欢(1988—),男,湖北武汉人,工程师,主要研究方向为锂电池检测及应用。E-mail:

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程琦(1989—),男,湖北武汉人,工程师,博士,主要研究方向为废旧锂电池资源化利用。E-mail:
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高性能电池级磷酸铁制备工艺优化研究
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黄欢 1 , 张仲懿 1 , 兰倩 2 , 王致富 3, 4, 5, 6 , 程琦 3
矿冶工程杂志 | 材料 2026,46(1): 197-201
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矿冶工程杂志 |材料 2026 , 46 (1) : 197 -201
高性能电池级磷酸铁制备工艺优化研究
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黄欢(1988—),男,湖北武汉人,工程师,主要研究方向为锂电池检测及应用。E-mail:

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黄欢(1988—),男,湖北武汉人,工程师,主要研究方向为锂电池检测及应用。E-mail:

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黄欢1 , 张仲懿1, 兰倩2, 王致富3, 4, 5, 6, 程琦3
作者信息
  • 1.中汽研汽车检验中心(武汉)有限公司,湖北 武汉 430056
  • 2.武汉彼欧英瑞杰汽车系统有限公司,湖北 武汉 430223
  • 3.宜昌邦普循环科技有限公司,湖北 宜昌 443215
  • 4.宜昌市电池循环利用与绿色低碳重点实验室,湖北 宜昌 443215
  • 5.广东省电池循环利用企业重点实验室,广东 佛山 528137
  • 6.新能源汽车动力电池循环利用国家地方联合工程研究中心,广东 佛山 528137
通讯作者:
程琦(1989—),男,湖北武汉人,工程师,博士,主要研究方向为废旧锂电池资源化利用。E-mail:
作者简介:

黄欢(1988—),男,湖北武汉人,工程师,主要研究方向为锂电池检测及应用。E-mail:

Preparation Process Optimization for High-Performance Battery-Grade Iron Phosphate
Huan HUANG1 , Zhongyi ZHANG1, Qian LAN2, Zhifu WANG3, 4, 5, 6, Qi CHENG3
Affiliations
  • 1.CATARC Automotive Inspection Center (Wuhan) Co., Ltd., Wuhan 430056, Hubei, China
  • 2.Wuhan Plastic Omnium Auto Inergy Co., Ltd., Wuhan 430223, Hubei, China
  • 3.Yichang Brunp Recycling Technology Co., Ltd., Yichang 443215, Hubei, China
  • 4.Yichang City Key Laboratory of Battery Recycling and Green and Low-Carbon, Yichang 443215, Hubei, China
  • 5.Guangdong Provincial Key Laboratory of Battery Recycling and Reuse, Foshan 528137, Guangdong, China
  • 6.The National-Local Joint Engineering Research Center for Recycling of New Energy Vehicle Traction Batteries, Foshan 528137, Guangdong, China
doi: 10.3969/j.issn.0253-6099.2026.01.033
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为提高锂离子电池正极材料前驱体磷酸铁(FePO4)的合成效率与产品性能,以硫酸亚铁和磷酸铵为原料,采用“氧化沉淀-转化”两步法制备磷酸铁,探究了氧化剂过氧化氢添加量、投料速率、反应温度等关键参数对产物粒径分布(D50)、纯度及铁磷比的影响。确定的优化工艺条件为:氧化阶段过氧化氢添加量为理论量的1.25倍、投料时长50 min、氧化温度40 ℃、氧化时间2 h,沉淀阶段磷酸铵投料时长50~55min、沉淀温度40 ℃,转化阶段转化温度90 ℃、磷酸浓度0.6 mol/L。在此条件下成功制备出D50为3.0 μm、杂质含量低于0.01%、Fe/P物质的量比0.997的高纯度磷酸铁。SEM与XRD表征结果显示产品为片状一次颗粒堆积而成的规则球形二次颗粒,结晶度良好。

锂离子电池  /  磷酸铁锂  /  磷酸铁  /  液相沉淀法  /  工艺优化

To improve synthesis efficiency and performance of iron phosphate (FePO4) product, a precursor for cathode materials of lithium-ion batteries, a two-step process consisting of oxidation-precipitation, and conversion was proposed to prepare iron phosphate with ferrous sulfate and ammonium phosphate as raw materials. The effects of key parameters, such as addition amount of hydrogen peroxide (oxidant), feeding rate, and reaction temperature, on the particle size distribution (D50), purity, and Fe/P ratio of the product were investigated. The optimized process conditions were determined as follows:oxidation at a temperature of 40 ℃ for 2 h by adding hydrogen peroxide at an amount of 1.25 times the theoretical dosage and feeding material for 50 min in the oxidation stage; precipitation at a temperature of 40 ℃ by feeding ammonium phosphate for 50~55 min in the precipitation stage; and with phosphoric acid at concentration of 0.6 mol/L and a temperature of 90 ℃ for the conversion stage. As a result, a high-purity iron phosphate with D50 of 3.0 μm, impurity content lower than 0.01%, and Fe/P at a molar ratio of 0.997 can be successfully prepared. SEM and XRD characterization results show that the product consists of regular spherical secondary particles formed with densely stacked primary lamellar crystals, presenting higher degree of crystallinity.

lithium-ion battery  /  lithium iron phosphate  /  iron phosphate  /  liquid phase precipitation  /  process optimization
黄欢, 张仲懿, 兰倩, 王致富, 程琦. 高性能电池级磷酸铁制备工艺优化研究. 矿冶工程杂志, 2026 , 46 (1) : 197 -201 . DOI: 10.3969/j.issn.0253-6099.2026.01.033
Huan HUANG, Zhongyi ZHANG, Qian LAN, Zhifu WANG, Qi CHENG. Preparation Process Optimization for High-Performance Battery-Grade Iron Phosphate[J]. Mining and Metallurgical Engineering, 2026 , 46 (1) : 197 -201 . DOI: 10.3969/j.issn.0253-6099.2026.01.033

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doi: 10.3969/j.issn.0253-6099.2026.01.033
  • 接收时间:2025-07-30
  • 首发时间:2026-10-08
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  • 收稿日期:2025-07-30
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作者信息
    1.中汽研汽车检验中心(武汉)有限公司,湖北 武汉 430056
    2.武汉彼欧英瑞杰汽车系统有限公司,湖北 武汉 430223
    3.宜昌邦普循环科技有限公司,湖北 宜昌 443215
    4.宜昌市电池循环利用与绿色低碳重点实验室,湖北 宜昌 443215
    5.广东省电池循环利用企业重点实验室,广东 佛山 528137
    6.新能源汽车动力电池循环利用国家地方联合工程研究中心,广东 佛山 528137

通讯作者:

程琦(1989—),男,湖北武汉人,工程师,博士,主要研究方向为废旧锂电池资源化利用。E-mail:
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https://castjournals.cast.org.cn/joweb/kygczz/CN/10.3969/j.issn.0253-6099.2026.01.033
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2种不同金属材料的力学参数
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species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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