| 高温固相法制备LiVxMn2-xO4/C及其电化学性能 |
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| 引用本文： | 张凯庆,史瑞祥,杨杰,王力臻.高温固相法制备LiVxMn2-xO4/C及其电化学性能[J].电池工业,2013(3):115-118. |
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| 作者姓名： | 张凯庆 史瑞祥 杨杰 王力臻 |
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| 作者单位： | [1]重庆车辆检测研究院,重庆401122 [2]国家客车质量监督检验中心,重庆401122 [3]河南省表界面重点实验室,河南郑州450002 |
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| 摘 要： | 采用高温固相法合成了LiVx Mn2-x O4／C正极材料，并通过X射线衍射（XRD）、扫描电子显微镜（SEM）以及充放电测试考察了产物的晶体结构、微观形貌以及电化学性能。实验结果表明：合成样品的颗粒大小较均匀，同时具有最佳的电化学性能，-30℃放电容量可达到额定容量的79．3%，4．8V过充循环10次后，模拟电池的容量保持率为94．8％。
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| 关 键 词： | 锂离子电池 正极材料 高温固相法 过充电 过放电 |
Synthesis and electrochemical performance of LiVxMn2-xO4/C prepared with high temperature solid-state method |
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| ZHANG Kai-qing,SHI Rui xiang,YANG Jie,WANG Li-zhen.Synthesis and electrochemical performance of LiVxMn2-xO4/C prepared with high temperature solid-state method[J].Chinese Battery Industry,2013(3):115-118. |
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| Authors: | ZHANG Kai-qing SHI Rui xiang YANG Jie WANG Li-zhen |
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| Affiliation: | a (1. Chongqing Vehicle Test ＆ Research Institute Co. , Ltd. , Chongqing 401122, China; 2. National Coach Quality Supervision — Testing Center, Chongqing 401122, China; 3. Henan Provincial Key Laboratory of SurJace InterJace Science, Zhengzhou, Henan 450002, |
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| Abstract: | LiVxMn2-xO4/C cathode material was synthesized by high temperature solid-state meth- od. the crystal structure, surface morphology and electrochemical performance of LiVxMne 04/ C were investigated by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and charge discharge tests. the results showed that the sample had a uniform particle distribution, which delivered the best electrochemical performance. The discharge capacity of the stimulant battery at 30C could reach 79.3% of the rated capacity. The capacity retention of the stimulant battery was 94.8% after 10 cycles of 4.8V overcharge. |
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| Keywords: | Li-ion battery cathode material high temperature solid-state method overcharge overdiseharge |
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