{"title":"锂离子可充电电池用尖晶石正极材料LiMn1.8 mg0.2","authors":"R. Singhal, M. Tomar, J. G. Burgos, R. Katiyar","doi":"10.1109/ISAF.2008.4693795","DOIUrl":null,"url":null,"abstract":"We have synthesized Mg doped lithium manganate spinel cathode material via sol-gel method (LiMn1.8 Mg0.2O4 ) for application in Li ion rechargeable batteries. The cathode material was annealed at different temperature from 500¿900°C. C. It was found that the best crystallinity of the powder was obtained at 800°C. The lattice parameters for the material annealed at 500, 600, 700, 800, and 900°C was found 8.1320 Å, 8.1423 Å, 8.1631 Å, 8.1630 Å, 8.1757 Å, respectively. The cyclic voltammetric studies reveal intercalation-deintercalation of Li ion from the cathode material. The initial discharge capacity of LiMn1.8 Mg0.2O4 cathode material was found to be about 120 mAh/g. The rate cycleability studies show a very stable nature of LiMn1.8 Mg0.2O4 cathode at higher discharge currents (0.5 and 1 mA/cm2).","PeriodicalId":228914,"journal":{"name":"2008 17th IEEE International Symposium on the Applications of Ferroelectrics","volume":"79 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"LiMn1.8 Mg0.2O4 spinel cathode material for Li ion rechargeable batteries\",\"authors\":\"R. Singhal, M. Tomar, J. G. Burgos, R. Katiyar\",\"doi\":\"10.1109/ISAF.2008.4693795\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We have synthesized Mg doped lithium manganate spinel cathode material via sol-gel method (LiMn1.8 Mg0.2O4 ) for application in Li ion rechargeable batteries. The cathode material was annealed at different temperature from 500¿900°C. C. It was found that the best crystallinity of the powder was obtained at 800°C. The lattice parameters for the material annealed at 500, 600, 700, 800, and 900°C was found 8.1320 Å, 8.1423 Å, 8.1631 Å, 8.1630 Å, 8.1757 Å, respectively. The cyclic voltammetric studies reveal intercalation-deintercalation of Li ion from the cathode material. The initial discharge capacity of LiMn1.8 Mg0.2O4 cathode material was found to be about 120 mAh/g. The rate cycleability studies show a very stable nature of LiMn1.8 Mg0.2O4 cathode at higher discharge currents (0.5 and 1 mA/cm2).\",\"PeriodicalId\":228914,\"journal\":{\"name\":\"2008 17th IEEE International Symposium on the Applications of Ferroelectrics\",\"volume\":\"79 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-12-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 17th IEEE International Symposium on the Applications of Ferroelectrics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISAF.2008.4693795\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 17th IEEE International Symposium on the Applications of Ferroelectrics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAF.2008.4693795","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
LiMn1.8 Mg0.2O4 spinel cathode material for Li ion rechargeable batteries
We have synthesized Mg doped lithium manganate spinel cathode material via sol-gel method (LiMn1.8 Mg0.2O4 ) for application in Li ion rechargeable batteries. The cathode material was annealed at different temperature from 500¿900°C. C. It was found that the best crystallinity of the powder was obtained at 800°C. The lattice parameters for the material annealed at 500, 600, 700, 800, and 900°C was found 8.1320 Å, 8.1423 Å, 8.1631 Å, 8.1630 Å, 8.1757 Å, respectively. The cyclic voltammetric studies reveal intercalation-deintercalation of Li ion from the cathode material. The initial discharge capacity of LiMn1.8 Mg0.2O4 cathode material was found to be about 120 mAh/g. The rate cycleability studies show a very stable nature of LiMn1.8 Mg0.2O4 cathode at higher discharge currents (0.5 and 1 mA/cm2).