Enhanced low-temperature performance of slight Mn-substituted LiFePO4/C cathode for lithium ion batteries
Low temperature performance of LiFePO4/C cathode was remarkably improved by slight Mn-substitution. Electrochemical measurements showed that about 95% of the discharge capacity of LiFe0.98Mn0.02PO4/C cathode at 20℃ was obtained at 0℃, compared to 85% of that of LiFePO4/C cathode. The LiFe0.98Mn0.02P...
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| Veröffentlicht in: | Chinese science bulletin 2011-04, Vol.56 (12), p.1262-1266 |
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| creator | Zeng, LingJie Gong, Qiang Liao, XiaoZhen He, Li He, YuShi Ma, ZiFeng |
| description | Low temperature performance of LiFePO4/C cathode was remarkably improved by slight Mn-substitution. Electrochemical measurements showed that about 95% of the discharge capacity of LiFe0.98Mn0.02PO4/C cathode at 20℃ was obtained at 0℃, compared to 85% of that of LiFePO4/C cathode. The LiFe0.98Mn0.02PO4/C sample also presented enhanced rate performance at -20℃ with the discharge capacities of 124.4 mA h/g （0.1C）, 99.8 mA h/g （1C）, 80.7mAh/g （2C） and 70 mA h/g （5C）, respectively, while pristine LiFePO4/C only delivered capacities of 120.5 mA h/g （0.1C）, 90.7 mA h/g （1C）, 70.4 mA h/g （2C） and 52.2 mA h/g （5C）. Cyclic voltammetry measurements demonstrated an obvious improvement of the lithium insertion-extraction process of the LiFePO4/C cathode by slight Mn-substitution. The results of FSEM observation and electrical conductivity measurement indicated that slight Mn-substitution minimized the particle size of LiFe0.98Mn0.02PO4/C and also obviously improved the electrical conductivity of the compound, thus obviously enhances the interface reaction process on the cathode. |
| doi_str_mv | 10.1007/s11434-010-4097-0 |
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Electrochemical measurements showed that about 95% of the discharge capacity of LiFe0.98Mn0.02PO4/C cathode at 20℃ was obtained at 0℃, compared to 85% of that of LiFePO4/C cathode. The LiFe0.98Mn0.02PO4/C sample also presented enhanced rate performance at -20℃ with the discharge capacities of 124.4 mA h/g （0.1C）, 99.8 mA h/g （1C）, 80.7mAh/g （2C） and 70 mA h/g （5C）, respectively, while pristine LiFePO4/C only delivered capacities of 120.5 mA h/g （0.1C）, 90.7 mA h/g （1C）, 70.4 mA h/g （2C） and 52.2 mA h/g （5C）. Cyclic voltammetry measurements demonstrated an obvious improvement of the lithium insertion-extraction process of the LiFePO4/C cathode by slight Mn-substitution. The results of FSEM observation and electrical conductivity measurement indicated that slight Mn-substitution minimized the particle size of LiFe0.98Mn0.02PO4/C and also obviously improved the electrical conductivity of the compound, thus obviously enhances the interface reaction process on the cathode.</description><identifier>ISSN: 1001-6538</identifier><identifier>EISSN: 1861-9541</identifier><identifier>DOI: 10.1007/s11434-010-4097-0</identifier><language>eng</language><publisher>Heidelberg: Springer-Verlag</publisher><subject>batteries ; Cathodes ; Chemistry/Food Science ; Discharge ; Earth Sciences ; Electrical conductivity ; Electrical resistivity ; electrodes ; Engineering ; Humanities and Social Sciences ; Interface reactions ; Life Sciences ; LiFePO4 ; lithium ; Lithium-ion batteries ; Manganese ; multidisciplinary ; particle size ; Performance enhancement ; Physics ; Resistivity ; Science ; Science (multidisciplinary) ; temperature ; 低温性能 ; 放电容量 ; 电化学测量 ; 电池正极 ; 磷酸铁锂 ; 锂离子 ; 锰取代</subject><ispartof>Chinese science bulletin, 2011-04, Vol.56 (12), p.1262-1266</ispartof><rights>The Author(s) 2011. 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Sci. Bull</addtitle><addtitle>Chinese Science Bulletin</addtitle><description>Low temperature performance of LiFePO4/C cathode was remarkably improved by slight Mn-substitution. Electrochemical measurements showed that about 95% of the discharge capacity of LiFe0.98Mn0.02PO4/C cathode at 20℃ was obtained at 0℃, compared to 85% of that of LiFePO4/C cathode. The LiFe0.98Mn0.02PO4/C sample also presented enhanced rate performance at -20℃ with the discharge capacities of 124.4 mA h/g （0.1C）, 99.8 mA h/g （1C）, 80.7mAh/g （2C） and 70 mA h/g （5C）, respectively, while pristine LiFePO4/C only delivered capacities of 120.5 mA h/g （0.1C）, 90.7 mA h/g （1C）, 70.4 mA h/g （2C） and 52.2 mA h/g （5C）. Cyclic voltammetry measurements demonstrated an obvious improvement of the lithium insertion-extraction process of the LiFePO4/C cathode by slight Mn-substitution. The results of FSEM observation and electrical conductivity measurement indicated that slight Mn-substitution minimized the particle size of LiFe0.98Mn0.02PO4/C and also obviously improved the electrical conductivity of the compound, thus obviously enhances the interface reaction process on the cathode.</description><subject>batteries</subject><subject>Cathodes</subject><subject>Chemistry/Food Science</subject><subject>Discharge</subject><subject>Earth Sciences</subject><subject>Electrical conductivity</subject><subject>Electrical resistivity</subject><subject>electrodes</subject><subject>Engineering</subject><subject>Humanities and Social Sciences</subject><subject>Interface reactions</subject><subject>Life Sciences</subject><subject>LiFePO4</subject><subject>lithium</subject><subject>Lithium-ion batteries</subject><subject>Manganese</subject><subject>multidisciplinary</subject><subject>particle size</subject><subject>Performance enhancement</subject><subject>Physics</subject><subject>Resistivity</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>temperature</subject><subject>低温性能</subject><subject>放电容量</subject><subject>电化学测量</subject><subject>电池正极</subject><subject>磷酸铁锂</subject><subject>锂离子</subject><subject>锰取代</subject><issn>1001-6538</issn><issn>1861-9541</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><recordid>eNp9kcFO3DAQhqOqlUopD8AJc-Jk8NheJz6iFVCkrajUcrYcZ7IxSuLFdlTx9ngV1GNPM6P5v9HMP1V1DuwaGKtvEoAUkjJgVDJdU_apOoFGAdUbCZ9LzhhQtRHN1-pbSi-lElDzk8rfzYOdHXZkDH9pxumA0eYlIilJH-J0bJLQkzT6_ZDJz5mmpU3Z5yUXaOfv8deTvNkSZ_MQOiSFIaPPg18m4sNMWpszRo_pe_Wlt2PCs494Wj3f3_3Z_qC7p4fH7e2OOgkiUyUs4wp517W9dQBWtExJrmvdYM-xVdij1EJp7gRzulWys86xBmFTcy2FOK2u1rmHGF4XTNlMPjkcRztjWJLRIBU0G6GLElaliyGliL05RD_Z-GaAmaOrZnXVFFfN0VXDCsNXJhXtvMdoXsIS53LQf6GLFeptMHYffTLPvzkDWd7Aas2PisuPVYYw71_L5H-7iLq8UQGIdwN1j24</recordid><startdate>20110401</startdate><enddate>20110401</enddate><creator>Zeng, LingJie</creator><creator>Gong, Qiang</creator><creator>Liao, XiaoZhen</creator><creator>He, Li</creator><creator>He, YuShi</creator><creator>Ma, ZiFeng</creator><general>Springer-Verlag</general><general>SP Science China Press</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>FBQ</scope><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20110401</creationdate><title>Enhanced low-temperature performance of slight Mn-substituted LiFePO4/C cathode for lithium ion batteries</title><author>Zeng, LingJie ; Gong, Qiang ; Liao, XiaoZhen ; He, Li ; He, YuShi ; Ma, ZiFeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c413t-63a026e2ddbfac11a3b06429798ef2eb6efe493692c30c9b64dacc08e15729433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>batteries</topic><topic>Cathodes</topic><topic>Chemistry/Food Science</topic><topic>Discharge</topic><topic>Earth Sciences</topic><topic>Electrical conductivity</topic><topic>Electrical resistivity</topic><topic>electrodes</topic><topic>Engineering</topic><topic>Humanities and Social Sciences</topic><topic>Interface reactions</topic><topic>Life Sciences</topic><topic>LiFePO4</topic><topic>lithium</topic><topic>Lithium-ion batteries</topic><topic>Manganese</topic><topic>multidisciplinary</topic><topic>particle size</topic><topic>Performance enhancement</topic><topic>Physics</topic><topic>Resistivity</topic><topic>Science</topic><topic>Science (multidisciplinary)</topic><topic>temperature</topic><topic>低温性能</topic><topic>放电容量</topic><topic>电化学测量</topic><topic>电池正极</topic><topic>磷酸铁锂</topic><topic>锂离子</topic><topic>锰取代</topic><toplevel>online_resources</toplevel><creatorcontrib>Zeng, LingJie</creatorcontrib><creatorcontrib>Gong, Qiang</creatorcontrib><creatorcontrib>Liao, XiaoZhen</creatorcontrib><creatorcontrib>He, Li</creatorcontrib><creatorcontrib>He, YuShi</creatorcontrib><creatorcontrib>Ma, ZiFeng</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>AGRIS</collection><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Chinese science bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zeng, LingJie</au><au>Gong, Qiang</au><au>Liao, XiaoZhen</au><au>He, Li</au><au>He, YuShi</au><au>Ma, ZiFeng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced low-temperature performance of slight Mn-substituted LiFePO4/C cathode for lithium ion batteries</atitle><jtitle>Chinese science bulletin</jtitle><stitle>Chin. Sci. Bull</stitle><addtitle>Chinese Science Bulletin</addtitle><date>2011-04-01</date><risdate>2011</risdate><volume>56</volume><issue>12</issue><spage>1262</spage><epage>1266</epage><pages>1262-1266</pages><issn>1001-6538</issn><eissn>1861-9541</eissn><abstract>Low temperature performance of LiFePO4/C cathode was remarkably improved by slight Mn-substitution. Electrochemical measurements showed that about 95% of the discharge capacity of LiFe0.98Mn0.02PO4/C cathode at 20℃ was obtained at 0℃, compared to 85% of that of LiFePO4/C cathode. The LiFe0.98Mn0.02PO4/C sample also presented enhanced rate performance at -20℃ with the discharge capacities of 124.4 mA h/g （0.1C）, 99.8 mA h/g （1C）, 80.7mAh/g （2C） and 70 mA h/g （5C）, respectively, while pristine LiFePO4/C only delivered capacities of 120.5 mA h/g （0.1C）, 90.7 mA h/g （1C）, 70.4 mA h/g （2C） and 52.2 mA h/g （5C）. Cyclic voltammetry measurements demonstrated an obvious improvement of the lithium insertion-extraction process of the LiFePO4/C cathode by slight Mn-substitution. The results of FSEM observation and electrical conductivity measurement indicated that slight Mn-substitution minimized the particle size of LiFe0.98Mn0.02PO4/C and also obviously improved the electrical conductivity of the compound, thus obviously enhances the interface reaction process on the cathode.</abstract><cop>Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s11434-010-4097-0</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | batteries Cathodes Chemistry/Food Science Discharge Earth Sciences Electrical conductivity Electrical resistivity electrodes Engineering Humanities and Social Sciences Interface reactions Life Sciences LiFePO4 lithium Lithium-ion batteries Manganese multidisciplinary particle size Performance enhancement Physics Resistivity Science Science (multidisciplinary) temperature 低温性能 放电容量 电化学测量 电池正极 磷酸铁锂 锂离子 锰取代 |
| title | Enhanced low-temperature performance of slight Mn-substituted LiFePO4/C cathode for lithium ion batteries |
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