| 高温固相法合成LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2的电化学性能 |
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| 引用本文： | 盛锁江,王振伟,耿海龙,徐艳辉. 高温固相法合成LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2的电化学性能[J]. 电池, 2017, 47(4). DOI: 10.19535/j.1001-1579.2017.04.002 |
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| 作者姓名： | 盛锁江 王振伟 耿海龙 徐艳辉 |
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| 作者单位： | 1. 苏州大学物理与光电·能源学部,江苏苏州215006;2. 山东齐星新材料科技有限公司,山东邹平,256200;3. 苏州大学物理与光电·能源学部,江苏苏州215006;山东齐星新材料科技有限公司,山东邹平256200 |
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| 摘 要： | 以LiOH·H_2O为锂源,采用高温固相法合成LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2正极材料,研究合成温度对产物微观形貌和脱锂行为的影响。XRD及SEM分析可知:产物为α-NaFeO_2型层状结构,未发现杂质。在800℃下,合成产物的电化学性能良好,在3.0~4.3 V充放电,电流为28 mA/g时的首次放电比容量为172 mAh/g,第100次循环的比容量为159.4 mAh/g。
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| 关 键 词： | 锂离子电池 富镍正极材料 嵌脱锂 电化学性能 |
Electrochemical performance of LiNi0.6Co0.2Mn0.2O2 synthesized via high-temperature solid-state method |
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| SHENG Suo-jiang,WANG Zhen-wei,GENG Hai-long,XU Yan-hui. Electrochemical performance of LiNi0.6Co0.2Mn0.2O2 synthesized via high-temperature solid-state method[J]. Battery Bimonthly, 2017, 47(4). DOI: 10.19535/j.1001-1579.2017.04.002 |
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| Authors: | SHENG Suo-jiang WANG Zhen-wei GENG Hai-long XU Yan-hui |
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| Abstract: | Using LiOH · H2O as the Li-source,LiNi0.6Co0.2Mn0.2O2 cathode was synthesized via high-temperature solid-state method.The influence of the synthesis temperature on the micro-morphology and Li-intercalation behavior of the product was investigated.The phase composition and microstructure were analyzed via XRD and SEM.The crystalline structure was α-NaFeO2type and no impurity was detected.The sample synthesized at 800 ℃ exhibited the best electrochemical performance.In the range of 3.0-4.3 V,the initial discharge capacity was 172 mAh/g,when the discharge current was set up at 28 mA/g.The discharge capacity was 159.4 mAh/g at the 100th cycle. |
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| Keywords: | Li-ion battery Ni-rich cathode lithium intercalation and de-intercalation electrochemical performance |
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