葡萄糖为碳源修饰改性锂离子电池LiFePO_(4)正极材料的研究进展  

Research Progress on Modification of LiFePO_(4)Cathode Material Using Glucose

作　　者：刘兰 LIU Lan(Middle School Attached to Guizhou Normal University,Guizhou Guiyang 550001,China)

机构地区：[1]贵州师范大学附属中学,贵州贵阳550001

出　　处：《广州化工》2025年第6期14-18,共5页GuangZhou Chemical Industry

基　　金：贵州省教育厅教育科学规划课题项目(No:2022B320)。

摘　　要：磷酸铁锂(LiFePO_(4))因其价格低廉、对环境友好和固有热安全性,循环寿命长、比能量高、无记忆效应等优点,在交通运输、航空航天、国防工业和医疗健康等领域中具有重要意义。然而,由于LiO_6在LiFePO_(4)(LFP)八面体晶体单元中的独特位置及电子只能通过Fe-O-Fe进行传导,导致其低离子扩散速率(10^(-14)cm^(2)·S^(-1))及电子导电性(10^(-9)S·cm^(-1)),这限制了其在快速充电条件下的进一步应用。目前,葡萄糖作为常用的低成本的碳材料,被广泛应用于生物材料和光电子材料。本文介绍了LiFePO_(4)正极材料以及葡萄糖对其的改性方法,主要包括固相法、水热法与机械混合法,并讨论了目前葡萄糖在应用过程中的出现的问题,并介绍了相应的解决方法。Lithium iron phosphate(LiFePO_(4))is widely recognized for its applications in transportation,aerospace,defense and healthcare due to its low cost,environmental friendliness,inherent thermal stability,high energy density and absence of memory effects.However,its application under fast charging conditions is limited by the unique position of LiO6 in the LiFePO_(4)(LFP)octahedral crystal unit and the fact that electrons can only be conducted through Fe-O-Fe bonds,resulting in low ionic diffusion rate(10-14 cm^(2)·S^(1))and electronic conductivity(10^(-9)S·cm^(1)).Currently,glucose is a popular low-cost carbon material used in biomaterials and optoelectronics.The LiFePO_(4)cathode materials and their modification methods of glucose were studied,including solid-phase,hydrothermal and mechanical mixing techniques,and the current challenges faced by glucose in the application process were discussed,along with their potential solutions.

关 键 词：LiFePO_(4)正极材料 葡萄糖 固相法 水热法 机械混合法 

分 类 号：TM912.9[电气工程—电力电子与电力传动]