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少量Mn掺杂及碳包覆改善LiFePO_4的电化学性能 被引量：1

Electrochemical behavior of carbon-coated and Mn-doped LiFePO_4
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摘要 采用固相法制得了颗粒细微、粒径分布窄的橄榄石型磷酸铁锂。采用X射线衍射光谱法(XRD)、扫描电子显微镜(SEM)及恒流充放电测试仪分别对合成样品的物相、晶胞参数、表面形貌及电性能进行测试与表征。对比分析了单一碳源掺杂、掺碳且掺Mn对材料结构及性能的影响。研究发现:碳包覆并掺杂少量Mn更有利于提高材料的电化学性能。 Oliven-phase of LiFePO4 with tiny particle and narrow size distribution was synthesized by solid-state method.The crystal structure and electrochemical performance was characterized by XRD,SEM and electrochemical performance test.The structure and performance of single carbon-doped and dual carbon-Mn-doped lithium iron phosphate were contrasted and analyzed.The results demonstrate that the dual carbon-Mn-doped sample has the most excellent electrochemical performance.
作者 唐开枚 陈立宝 林晓园 王太宏
机构地区 湖南大学微纳技术研究中心
出处 《电源技术》 CAS CSCD 北大核心 2011年第1期25-27,共3页 Chinese Journal of Power Sources
关键词 磷酸铁锂 碳包覆 掺杂 LiFePO4 carbon-coated doped
分类号 TM912 [电气工程—电力电子与电力传动]
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参考文献11

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共引文献10

同被引文献13

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电源技术
2011年 第1期

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