{"title":"Preparationnand Rate Capability of Carbon Coated LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> as CathodenMaterial in Lithium Ion Batteries","authors":"Chaofan Yang (3877861), Xiaosong Zhang (79777), Mengyi Huang (3877858), Junjie Huang (3643540), Zebo Fang (3353225)","doi":"10.1021/acsami.6b16741.s001","DOIUrl":"https://doi.org/10.1021/acsami.6b16741.s001","url":null,"abstract":"LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (NCM) is regardednas a promising material for next-generation lithiumnion batteries due to the high capacity, but its practical applicationsnare limited by the poor electronic conductivity. Here, a one-stepnmethod is used to prepare carbon coated LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (NCM/C) by applying active carbon asnreaction matrix. TEM shows LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> particles are homogeneously coated by carbonnwith a thickness about 10 nm. NCM/C delivers the discharge capacitynof 191.2 mAh g<sup>–1</sup> at 0.5 C (85 mA g<sup>–1</sup>) with a columbic efficiency of 91.1%. At 40 C (6800 mA g<sup>–1</sup>), the discharge capacity of NCM/C is 54.6 mAh g<sup>–1</sup>, whereas NCM prepared through sol–gel route only deliversn13.2 mAh g<sup>–1</sup>. After 100 charge and discharge cyclesnat 1 C (170 mA g<sup>–1</sup>) the capacity retention is 90.3%nfor NCM/C, whereas it is only 72.4% for NCM. The superior charge/dischargenperformance of NCM/C owes much to the carbon coating layer, whichnis not only helpful to increase the electronic conductivity but alsoncontributive to inhibit the side reactions between LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> and the liquid electrolyte.","PeriodicalId":521708,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}