Article(id=1318974521583981264, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1318974513019207979, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20230145, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1678377600000, receivedDateStr=2023-03-10, revisedDate=1679673600000, revisedDateStr=2023-03-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1792397631306, onlineDateStr=2026-10-19, pubDate=1685289600000, pubDateStr=2023-05-29, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792397631306, onlineIssueDateStr=2026-10-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792397631306, creator=13701087609, updateTime=1792397631306, updator=13701087609, issue=Issue{id=1318974513019207979, tenantId=1146029695717560320, journalId=1263187385517883426, year='2023', volume='51', issue='7', pageStart='1649', pageEnd='1882', issueExtLink='null', onlineDate='null', pubDate='1689782400000', pubDateStr='2023-07-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792397629265, creator='13701087609', updateTime=1792399256269, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1318981337223119779, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1318974513019207979, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1318981337223119780, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1318974513019207979, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1670, endPage=1679, ext={EN=ArticleExt(id=1318974521953080017, articleId=1318974521583981264, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Preparation of Cation-Disordered Li3V2O5 Nanorod Cathode Materials and Improvement of Their Electrochemical Stability, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

It is important for the further improvement of lithium-ion battery energy densities to develop high-specific-capacity cathode materials. Li3V2O5 has attracted much attention due to its high specific capacity, even exceeding 240 mA·h/g. However, its low electrochemical cycling stability induced by the low Li+ transport dynamics and irreversible phase transition restricts the application of Li3V2O5 cathode materials in lithium-ion batteries. In this paper, co-doped Li3V2O5 nanorod cathode materials were prepared. The one-dimensional structure can relieve the accumulation of strain during charging and discharging process. Also, Co3+ doping can stabilize the structure of Li3V2O5 by forming the more intense Co—O bonds. Furthermore, Co3+ doping expands the cell volume and ratio of V4+ in Li3V2O5. These collectively result in the improved Li+ diffusion coefficient and cycling stability of Li3V2O5. The 1% Co-doped Li3V2O5 (i.e., 1%Co-LVO sample) has a specific discharge capacity of 256.43 mA·h/g at a current density of 50 mA/g and a capacity retention rate of 77.3% after 100 cycles, which is 28% greater than that of the pristine Li3V2O5. 1%Co-LVO sample shows a superior capacity fading (i.e., 0.23%/cycle). This paper can provide an effective method for the preparation and performance regulation of high-energy-density lithium-ion cathode material (i.e., Li3V2O5).

, authors=Can WANG1, Shicheng CAO1, Afei LI1, Chengzhi HU1, Guoxian WANG1, Zhibao LIU2, Kai CHEN2, Changping WANG2, Zhangxian CHEN1, authorsList=Can WANG, Shicheng CAO, Afei LI, Chengzhi HU, Guoxian WANG, Zhibao LIU, Kai CHEN, Changping WANG, Zhangxian CHEN, authorCompany=null, correspAuthors=Zhangxian CHEN, authorNote=

WANG Can (1997-), male, Master candidate. E-mail:

, correspAuthorsNote=
CHEN Zhangxian (1981-), male, Ph.D., Associate Professor. E-mail:
, 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=1318974522175378130, articleId=1318974521583981264, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=阳离子无序Li3V2O5纳米棒正极材料的制备与充放电循环稳定性调控, columnId=1263922770220560512, journalTitle=硅酸盐学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

高比容量正极材料的研发对进一步提升锂离子电池的能量密度具有重要的意义。Li3V2O5正极材料的实际比容量较高,可达240 mA·h/g以上,近年来引起了人们的广泛关注。然而,由于锂离子传输动力学不足以及不可逆相变共同导致Li3V2O5具有充放电循环稳定性较差的问题,限制了其作为锂离子电池正极材料的应用。在前期研究基础上制备了Co3+掺杂Li3V2O5纳米棒材料,一方面通过形成一维结构避免充放电循环过程中的应力累积,另一方面通过形成键能更强的Co—O键提高材料结构的稳定性。此外,Co3+掺杂还扩大了晶格间距并提高了V4+的比例,最终使Li3V2O5正极材料的锂离子扩散系数和充放电循环稳定性获得显著改善。1%(摩尔分数)Co3+掺杂Li3V2O5样品(1%Co-LVO)在50 mA/g电流密度下的首次放电比容量达256.43 mA·h/g,循环100圈后容量保持率达到77.3%,与未掺杂样品相比提升了28%。与文献相比,1%Co-LVO样品的容量衰减率具有显著的优势(0.23%/圈),为高能量密度锂离子电池正极材料Li3V2O5的制备与性能调控提供了一定的参考。

, authors=王璨1, 曹世丞1, 李阿飞1, 胡成志1, 王国贤1, 刘治保2, 陈凯2, 王长平2, 陈章贤1, authorsList=王璨, 曹世丞, 李阿飞, 胡成志, 王国贤, 刘治保, 陈凯, 王长平, 陈章贤, authorCompany=null, correspAuthors=陈章贤, authorNote=

王璨(1997—),男,硕士研究生。

, correspAuthorsNote=
陈章贤(1981—),男,博士,副教授。
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WANG Can (1997-), male, Master candidate. E-mail:

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王璨(1997—),男,硕士研究生。

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王璨(1997—),男,硕士研究生。

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王璨 1 , 曹世丞 1 , 李阿飞 1 , 胡成志 1 , 王国贤 1 , 刘治保 2 , 陈凯 2 , 王长平 2 , 陈章贤 1
硅酸盐学报 | 研究论文 2023,51(7): 1670-1679
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硅酸盐学报 |研究论文 2023 , 51 (7) : 1670 -1679
阳离子无序Li3V2O5纳米棒正极材料的制备与充放电循环稳定性调控
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王璨1 , 曹世丞1, 李阿飞1, 胡成志1, 王国贤1, 刘治保2, 陈凯2, 王长平2, 陈章贤1
作者信息
  • 1.合肥工业大学化学与化工学院,合肥 230009
  • 2.中盐安徽红四方新能源科技有限公司,合肥 231602
通讯作者:
陈章贤(1981—),男,博士,副教授。
作者简介:

王璨(1997—),男,硕士研究生。

Preparation of Cation-Disordered Li3V2O5 Nanorod Cathode Materials and Improvement of Their Electrochemical Stability
Can WANG1 , Shicheng CAO1, Afei LI1, Chengzhi HU1, Guoxian WANG1, Zhibao LIU2, Kai CHEN2, Changping WANG2, Zhangxian CHEN1
Affiliations
  • 1.School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
  • 2.CNSG Anhui Hongsifang CO., LTD., Hefei 230009, China
  • Corresponding Author:
    CHEN Zhangxian (1981-), male, Ph.D., Associate Professor. E-mail:

    WANG Can (1997-), male, Master candidate. E-mail:

出版时间: 2023-05-29 doi: 10.14062/j.issn.0454-5648.20230145
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高比容量正极材料的研发对进一步提升锂离子电池的能量密度具有重要的意义。Li3V2O5正极材料的实际比容量较高,可达240 mA·h/g以上,近年来引起了人们的广泛关注。然而,由于锂离子传输动力学不足以及不可逆相变共同导致Li3V2O5具有充放电循环稳定性较差的问题,限制了其作为锂离子电池正极材料的应用。在前期研究基础上制备了Co3+掺杂Li3V2O5纳米棒材料,一方面通过形成一维结构避免充放电循环过程中的应力累积,另一方面通过形成键能更强的Co—O键提高材料结构的稳定性。此外,Co3+掺杂还扩大了晶格间距并提高了V4+的比例,最终使Li3V2O5正极材料的锂离子扩散系数和充放电循环稳定性获得显著改善。1%(摩尔分数)Co3+掺杂Li3V2O5样品(1%Co-LVO)在50 mA/g电流密度下的首次放电比容量达256.43 mA·h/g,循环100圈后容量保持率达到77.3%,与未掺杂样品相比提升了28%。与文献相比,1%Co-LVO样品的容量衰减率具有显著的优势(0.23%/圈),为高能量密度锂离子电池正极材料Li3V2O5的制备与性能调控提供了一定的参考。

钒酸锂  /  锂离子电池  /  阳离子无序  /  正极材料

It is important for the further improvement of lithium-ion battery energy densities to develop high-specific-capacity cathode materials. Li3V2O5 has attracted much attention due to its high specific capacity, even exceeding 240 mA·h/g. However, its low electrochemical cycling stability induced by the low Li+ transport dynamics and irreversible phase transition restricts the application of Li3V2O5 cathode materials in lithium-ion batteries. In this paper, co-doped Li3V2O5 nanorod cathode materials were prepared. The one-dimensional structure can relieve the accumulation of strain during charging and discharging process. Also, Co3+ doping can stabilize the structure of Li3V2O5 by forming the more intense Co—O bonds. Furthermore, Co3+ doping expands the cell volume and ratio of V4+ in Li3V2O5. These collectively result in the improved Li+ diffusion coefficient and cycling stability of Li3V2O5. The 1% Co-doped Li3V2O5 (i.e., 1%Co-LVO sample) has a specific discharge capacity of 256.43 mA·h/g at a current density of 50 mA/g and a capacity retention rate of 77.3% after 100 cycles, which is 28% greater than that of the pristine Li3V2O5. 1%Co-LVO sample shows a superior capacity fading (i.e., 0.23%/cycle). This paper can provide an effective method for the preparation and performance regulation of high-energy-density lithium-ion cathode material (i.e., Li3V2O5).

lithium vanadate  /  lithium-ion battery  /  cation disordered  /  cathode material
王璨, 曹世丞, 李阿飞, 胡成志, 王国贤, 刘治保, 陈凯, 王长平, 陈章贤. 阳离子无序Li3V2O5纳米棒正极材料的制备与充放电循环稳定性调控. 硅酸盐学报, 2023 , 51 (7) : 1670 -1679 . DOI: 10.14062/j.issn.0454-5648.20230145
Can WANG, Shicheng CAO, Afei LI, Chengzhi HU, Guoxian WANG, Zhibao LIU, Kai CHEN, Changping WANG, Zhangxian CHEN. Preparation of Cation-Disordered Li3V2O5 Nanorod Cathode Materials and Improvement of Their Electrochemical Stability[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (7) : 1670 -1679 . DOI: 10.14062/j.issn.0454-5648.20230145
  • 安徽省科技重大专项(202003a05020046)
  • 安徽省自然科学基金(2208085MB34)
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2023年第51卷第7期
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doi: 10.14062/j.issn.0454-5648.20230145
  • 接收时间:2023-03-10
  • 首发时间:2026-10-19
  • 出版时间:2023-05-29
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  • 收稿日期:2023-03-10
  • 修回日期:2023-03-25
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安徽省科技重大专项(202003a05020046)
安徽省自然科学基金(2208085MB34)
作者信息
    1.合肥工业大学化学与化工学院,合肥 230009
    2.中盐安徽红四方新能源科技有限公司,合肥 231602

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陈章贤(1981—),男,博士,副教授。
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https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20230145
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
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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