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不同锂源和碳源对RAPET法合成LiFePO_4/C的影响 被引量：3

Effects of Carbon and Lithium Precursors on Performance of LiFePO_4/C Composite Cathode Material Synthesized by RAPET Method
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摘要 以自制的磷酸铁作为铁源和磷源,用高温自生压力法(即RAPET法)合成了LiFe-PO4/C复合材料,分别比较了以葡萄糖、蔗糖或柠檬酸为碳源和以碳酸锂或氢氧化锂为锂源所得LiFePO4/C复合材料电化学性能的影响。利用X射线衍射(XRD)、循环伏安(CV)、交流阻抗(EIS)和充放电测试等方法,分别对样品的晶型和电化学性能等进行了表征和分析。结果表明:以柠檬酸为碳源、碳酸锂为锂源制备的LiFePO4/C复合材料电化学性能更优异,首次放电比容量达到166.1mAh/g。 Olivine-type LiFePO4/Carbon composites were synthesized by the RAPET method using FePO4 as iron and phosphate sources, glucose, sucrose or citrate as carbon sources and LiOH or Li2CO3 as lithium sources, respectively. The effects of carbon and lithium precursors on the electrochemical performance of the derived LiFePO4/Carbon composites were investigated. XRD, CV, EIS and charge/discharge tests showed that all the LiFePOa/Carbon composites have good crystallites and excellent electrochemical performance. LiFePO4/Carbon composite synthesized using citrate as carbon source and Li3 CO3 as lithium source shows the excellent performance with discharge capacity of 166.1 mAh/g at 0.1 C.
作者 王梦雪 李洪亮 阚光伟 刘慧 桑净净 赵修松
机构地区 青岛大学化学化工与环境学院 青岛大学纤维新材料与现代纺织国家重点实验室培育基地多功能材料研究所
出处 《青岛大学学报（自然科学版）》 CAS 2012年第1期37-41,共5页 Journal of Qingdao University(Natural Science Edition)
基金 国家自然科学基金(NO.21103096 No.20901043) 科技部863计划项目(No.2008AA03Z) 山东省自然科学基金(ZR2009FM022) 青岛市科技发展计划(10-3-4-3-4-jch) 省高校科研发展计划(J10LD12)
关键词 磷酸亚铁锂 碳源 锂源 RAPET 锂离子电池 LiFePO4 carbon precursor lithium precursor RAPET lithium ion battery
分类号 O521.9 [理学—高压高温物理]
  • 相关文献

参考文献6

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同被引文献46

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  • 8钱灵超.锂离子正极材料LiFePO-及其前驱体FeP04的制备与性能研究[D].浙江:浙江工业大学,2011.
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  • 10王燕芬.镪离子电池正极材料LiFeP04/C的制备及性能研究[D].武汉:中国地质大学.2012.

引证文献3

二级引证文献5

青岛大学学报（自然科学版）
2012年 第1期

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