用共沉淀法合成了用铝掺杂的铁部分取代锰的富锂正极材料Li[Li0.2Mn0.4Fe0.3Al0.1]O2.采用XRD、SEM、电化学测试等方法对样品进行表征.结果表明,与Li[Li0.2Mn0.45Fe0.35]O2相比,Li[Li0.2Mn0.4Fe0.3Al0.1]O2具有较好的电化学性能,其初始容量达到241 mAh/g左右,经50次充放电循环后,容量衰减率在7％左右.
参考文献
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