Half cells and full cells investigation of carbon-coated Fe2O3 as electrode materials in lithium-ion storage properties
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摘要：
采用水热法制备了碳包覆氧化铁(Fe2O3@C)复合材料.直径为30~50nm的Fe2O3类球形颗粒表面有8nm左右的碳包覆层.Fe2O3@C复合材料在锂离子电池中展现出了良好的电化学性能.在Fe2O3@C∥Li半电池中,Fe2O3@C在100mA·g^-1下循环300周后可逆放电比容量为730mAh·g^-1.在LiCoO2∥Fe2O3@C全电池中,Fe2O3@C在电流为50,100,200,400和600mA·g^-1时的放电比容量分别为1140,777,669,557和451mAh·g^-1.
A carbon-coated Fe2O3(Fe2O3@C)composite has been synthesized through hydrothermal method.The obtained Fe2O3 particles have a size of 30-50 nm in diameter,which are coated by about 8 nm carbon layers.Using Fe2O3@C composite as working electrodes,Li metal and commercial LiCoO2 as opposite electrodes respectively,half and full lithium-ion cells are assembled.After 300 cycles at 100 mA·g^-1,the discharge capacity of Fe2O3@C is stable at 730 mAh·g^-1 in half cells.Discharge capacities of 1140,777,669,557 and 451 mAh·g^-1 of Fe2O3@C are achieved at 50,100,200,400 and 600 mA·g^-1 in full cells.
作者：
袁光辉 耿敏 丁欢 张萍 刘新运 张永光
Yuan Guanghui;Geng Min;Ding Huan;Zhang Ping;Liu Xinyun;Zhang Yongguang(School of Chemistry and Chemical Engineering,Research Center of New Advanced Materials,Ankang Research Centre of Zn-Based&Fe-Al Materials and Technology,Ankang University,Ankang 725000,China;Chongqing Academy of Metrology and Quality Inspection,Chongqing 401123,China;Huaqin Power Technology Company Limited,Ankang 725000,China;Research Institute for Energy Equipment Materials,Hebei University of Technology,Tianjin 300130,China)
机构地区：
安康学院化学化工学院 重庆市计量质量检测研究院 华秦储能技术有限公司 河北工业大学能源装备材料技术研究院
出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2020年第6期64-70,共7页
基金：
国家自然科学基金(21406052) 陕西省科技厅面上项目基金(2019JM-229) 陕西省留学人员科技活动择优资助项目(2019-37) 安康市科技局工业攻关项目基金(2018AK01-12) 国家级大学生创新创业训练计划项目(201911397006).
关键词：
碳包覆 氧化铁 半电池 全电池 电化学性能
carbon-coated Fe2O3 half-cells full-cells electrochemical performance
分类号：
TM2 [一般工业技术—材料科学与工程]
