CAJ | 학술논문

当前锂离子电池的的普遍应用，使人们对锂离子电池的正极材料非常关注，而磷酸亚铁锂作为正极材料有很多优点如无毒性，对环境友好，原材料来源丰富，比容量高，循环性能好等，但电子导电率较低和锂离子迁移速率较低的缺点，成为其商业化的难题之一。以葡萄糖为 C 源对材料进行掺杂及包覆，用 XRD、恒流充放电研究了材料的结构和电化学性能。结果表明包覆后的材料的橄榄石型晶体结构不会变化，并且电化学性能有明显的提高。
당전리리자전지적적보편응용，사인문대리리자전지적정겁재료비상관주，이린산아철리작위정겁재료유흔다우점여무독성，대배경우호，원재료래원봉부，비용량고，순배성능호등，단전자도전솔교저화리리자천이속솔교저적결점，성위기상업화적난제지일。이포도당위 C 원대재료진행참잡급포복，용 XRD、항류충방전연구료재료적결구화전화학성능。결과표명포복후적재료적감람석형정체결구불회변화，병차전화학성능유명현적제고。
Wide application of lithium ion battery makes people pay more attention to cathode material of lithium -ion batteries.Lithium iron phosphate as the cathode material has many advantages such as non -toxic ability,envi-ronmental friendliness,abundant raw materials sources,high specific capacity,good cycle performance,but there is a disadvantage of low electronic conductivity,which is also a problem in conducting it commercially.To improve the behavior of olivine LiFePO4 ,glucose is used as carbon source coating.The results maintain the structure of ol-ive -type phase and the electrochemical performance is greatly improved.