高温还原GO制备LiFePO<sub>4</sub>/石墨烯复合正极材料及表征

doi:10.11868/j.issn.1001-4381.2017.000752

摘要
参考文献
相关文章
Metrics

全文: PDF(3820 KB) HTML()
输出: BibTeX | EndNote (RIS)

摘要通过对氧化石墨烯（GO）进行微观调控处理得到少层GO。采用喷雾干燥再高温改性的方法制备LiFePO₄/石墨烯锂离子电池复合正极材料；GO还原后即可得到石墨烯，其优良的导电性可以提高LiFePO₄的电子传输能力。通过X射线衍射（XRD）、红外光谱（FTIR）、扫描电镜（SEM）、透射电镜（TEM）和电化学测试技术等方法对复合材料的结构、形貌及电化学性能进行表征。石墨烯的复合使材料颗粒间构建空间三维导电网络，提高了电解质/电极材料界面的电荷转移速率，改善了LiFePO₄的电化学性能。电化学测试结果表明，在0.1C时LiFePO₄的放电比容量为155mAh/g，LiFePO₄/石墨烯复合材料的放电比容量为164mAh/g；1C和2C倍率时，LiFePO₄/石墨烯复合材料的放电比容量分别为140，119mAh/g。

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	邓凌峰
	覃昱焜
	彭辉艳
	连晓辉
	吴义强

关键词 ：氧化石墨烯, 石墨烯, 喷雾干燥, 导电网络, 电化学性能

Abstract：Micro layer of GO was obtained by micro adjustment and control. LiFePO₄/graphene composite cathode materials were synthesized using a spray drying followed by high temperature reduction modification method, to improve conductivity of LiFePO₄ with excellent conductivity of graphene. The structure, morphology and electrochemical performance of the composite materials were characterized by XRD, FTIR, SEM, TEM and electrochemical measurement technologies. The three-dimensional conductive network was constructed by graphene composite in material particles, which can improve the charge transfer rate of the interface of electrolyte/electrode materials and the electrochemical performance of LiFePO₄. The results show that the discharge specific capacity of LiFePO₄ without graphene is only 155mAh/g, while the discharge specific capacity of LiFePO₄/graphene is 164mAh/g at 0.1C.The discharge specific capacity of LiFePO₄/graphene is 140,119mAh/g at 1,2C,respectively.

Key words： graphene oxide(GO) graphene spray drying conductive network electrochemical performance

收稿日期: 2017-06-13 出版日期: 2018-02-01

中图分类号:

TM912

通讯作者: 邓凌峰(1970-),男,副教授,博士,主要从事能源材料的研究,联系地址:湖南省长沙市天心区韶山南路498号中南林业科技大学材料学院(410004),denglingfeng168@126.com E-mail: denglingfeng168@126.com

引用本文:

邓凌峰, 覃昱焜, 彭辉艳, 连晓辉, 吴义强. 高温还原GO制备LiFePO₄/石墨烯复合正极材料及表征[J]. 材料工程, 2018, 46(2): 9-15.
DENG Ling-feng, QIN Yu-kun, PENG Hui-yan, LIAN Xiao-hui, WU Yi-qiang. Preparation and Characterization of LiFePO₄/Graphene Composite Cathode Materials by High Temperature Reduction GO. Journal of Materials Engineering, 2018, 46(2): 9-15.

链接本文:

http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2017.000752 或 http://jme.biam.ac.cn/CN/Y2018/V46/I2/9

[1] WANG B,LIU A,ABDULLA W A,et al. Desired crystal oriented LiFePO₄ nanoplatelets in situ anchored on a graphene cross-linked conductive network for fast lithium storage[J]. Nanoscale,2015,7(19):8819-8828.
[2] OH J,LEE J,HWANG T,et al. Dual layer coating strategy utilizing N-doped carbon and reduced graphene oxide for high-performance LiFePO₄ cathode material[J].Electrochimica Acta,2017,231:85-93.
[3] MILLER D L,KUBISTA K D,RUTTER G M,et al.Observing the quantization of zero mass carriers in graphene[J]. Science,2009,324(5929):924-927.
[4] 杨文彬,张丽,刘菁伟,等. 石墨烯复合材料的制备及应用研究进展[J]. 材料工程,2015,43(3):91-97. YANG W B,ZHANG L,LIU J W,et al. Progress in research on preparation and application of graphene composites[J]. Journal of Materials Engineering,2015,43(3):91-97.
[5] 杨程,陈宇滨,田俊鹏,等. 功能化石墨烯的制备及应用研究进展[J]. 航空材料学报,2016,36(3):40-56. YANG C,CHEN Y B,TIAN J P,et al. Development in preparation and application of graphene functionalization[J]. Journal of Aeronautical Materials,2016,36(3):40-56.
[6] KUCINSKIS G,BAJARS G,KLEPERIS J. Graphene in lithium ion battery cathode materials:a review[J].Journal of Power Sources,2013,240(31):66-79.
[7] 云强,周园,李翔,等. 石墨烯改性LiFePO₄正极材料的研究进展[J]. 电源技术,2015,39(7):1525-1529. YUN Q,ZHOU Y,LI X,et al. Research progress on modification of LiFePO₄ by graphene[J]. Chinese Journal of Power Sources,2015,39(7):1525-1529.
[8] WANG Z,GUO H,YAN P. A rapid microwave heating route to synthesize graphene modified LiFePO₄/C nanocomposite for rechargeable lithium-ion batteries[J]. Ceramics International,2014,40(10):15801-15806.
[9] LONG Y,SHU Y,MA X,et al.In-situ synthesizing superior high-rate LiFePO₄/C nanorods embedded in graphene matrix[J]. Electrochimica Acta,2014,117(4):105-112.
[10] TIAN Z,ZHOU Z,LIU S,et al. Enhanced properties of olivine LiFePO₄/graphene co-doped with Nb⁵⁺ and Ti⁴⁺ by a sol-gel method[J]. Solid State Ionics,2015,278:186-191.
[11] DU Y,TANG Y,HUANG F,et al. Preparation of three-dimensional free-standing nano-LiFePO₄/graphene composite for high performance lithium ion battery[J]. Rsc Advances,2016,6(57):52279-52283.
[12] NGUYEN V H,GU H B. LiFePO₄ batteries with enhanced lithium-ion-diffusion ability due to graphene addition[J]. Journal of Applied Electrochemistry,2014,44(10):1153-1163.
[13] ZHU X,HU J,WU W,et al. LiFePO₄/reduced graphene oxide hybrid cathode for lithium ion battery with outstanding rate performance[J]. Journal of Materials Chemistry A,2014,2(21):7812-7818.
[14] 江虹,蔡光兰,郭瑞松,等. 石墨烯改性LiFePO₄/C正极材料的低温电化学性能[J]. 硅酸盐学报,2016,44(7):925-930. JIANG H,CAI G L,GUO R S,et al. Low temperature electrochemical performances of graphene modified LiFePO₄/C cathode materials[J]. Journal of the Chinese Ceramic Society,2016,44(7):925-930.
[15] 邓凌峰,余开明,严忠,等. Co²⁺掺杂石墨烯/LiFePO₄锂离子电池复合正极材料的制备与表征[J]. 复合材料学报,2015,32(5):1390-1398. DENG L F,YU K M,YAN Z,et al. Preparation and characterization of Co²⁺ doped graphene/LiFePO₄ composite cathode materials for lithium battery[J]. Acta Materiae Compositae Sinica,2015,32(5):1390-1398.
[16] WU Z S,REN W,WEN L,et al. Graphene anchored with Co₃O₄ nanoparticles as anode of lithium ion batteries with enhanced reversible capacity and cyclic performance[J]. ACS Nano,2010,4(6):3187-3194.
[17] 曹亮,王安安,艾立华,等. 石墨烯在锂离子电池材料性能优化中的应用[J]. 中国有色金属学报,2016,26(4):807-820. CAO L,WANG A A,AI L H,et al. Application of graphene in performance optimization of lithium ion battery materials[J]. The Chinese Journal of Nonferrous Metals,2016,26(4):807-820.
[18] RACCICHINI R,VARZI A,WEI D,et al. Critical insight into the relentless progression toward graphene and graphene-containing materials for lithium-ion battery anodes[J]. Advanced Materials,2017,29(11):1603421.
[19] WU Z S,ZHOU G,YIN L C,et al. Graphene/metal oxide composite electrode materials for energy storage[J]. Nano Energy,2012,1(1):107-131.

[1]	高亚辉, 尹国杰, 张少文, 王璐, 孟巧静, 李欣栋. 电化学法制备石墨烯的研究进展[J]. 材料工程, 2020, 48(8): 84-100.
[2]	钱伟, 何大平, 李宝文. 石墨烯基电磁屏蔽材料的研究进展[J]. 材料工程, 2020, 48(7): 14-23.
[3]	李娜, 张儒静, 甄真, 许振华, 何利民. 等离子体增强化学气相沉积可控制备石墨烯研究进展[J]. 材料工程, 2020, 48(7): 36-44.
[4]	郭建强, 李炯利, 梁佳丰, 李岳, 朱巧思, 王旭东. 氧化石墨烯的化学还原方法与机理研究进展[J]. 材料工程, 2020, 48(7): 24-35.
[5]	郝思嘉, 李哲灵, 任志东, 田俊鹏, 时双强, 邢悦, 杨程. 拉曼光谱在石墨烯聚合物纳米复合材料中的应用[J]. 材料工程, 2020, 48(7): 45-60.
[6]	杨程, 时双强, 郝思嘉, 褚海荣, 戴圣龙. 石墨烯光催化材料及其在环境净化领域的研究进展[J]. 材料工程, 2020, 48(7): 1-13.
[7]	张传香, 陈亚玲, 巩云, 刘慧颖, 戴玉明, 丛园. 二硫化钼/石墨烯复合材料的一步水热合成及电催化性能[J]. 材料工程, 2020, 48(5): 56-61.
[8]	张淑娴, 邓凌峰, 连晓辉, 谭洁慧, 李金磊. 微量CNTs包覆对LiNi_0.8Co_0.1Mn_0.1O₂正极材料电化学性能的影响[J]. 材料工程, 2020, 48(5): 68-74.
[9]	白明洁, 刘金龙, 齐志娜, 何江, 魏俊俊, 苗建印, 李成明. 石墨烯纳米流体研究进展[J]. 材料工程, 2020, 48(4): 46-59.
[10]	谢红梅, 蒋斌, 戴甲洪, 唐昌平, 李权, 潘复生. 石墨烯和氧化石墨烯水基润滑添加剂在镁合金冷轧中的摩擦学行为[J]. 材料工程, 2020, 48(3): 66-74.
[11]	许剑轶, 张国芳, 胡峰, 王瑞芬, 寇勇, 张胤. La-Mg-Ni系A₅B₁₉超晶格负极材料相结构及电化学性能[J]. 材料工程, 2020, 48(2): 46-52.
[12]	陈乐, 董丽敏, 金鑫鑫, 付海洋, 李晓约. Y掺杂Mn₃O₄/石墨烯复合材料的电化学性能[J]. 材料工程, 2020, 48(2): 53-58.
[13]	陈航, 弭光宝, 李培杰, 王旭东, 黄旭, 曹春晓. 氧化石墨烯对600℃高温钛合金微观组织和力学性能的影响[J]. 材料工程, 2019, 47(9): 38-45.
[14]	徐鹏, 王冠韬, 刘奎, 罗斯达. 石墨烯/碳纳米管嵌入式纤维传感器对树脂基复合材料原位监测的结构-性能关系对比[J]. 材料工程, 2019, 47(9): 29-37.
[15]	宇文超, 刘秉国, 张立波, 郭胜惠, 彭金辉. 低温一步制备氧化石墨烯及微波还原研究[J]. 材料工程, 2019, 47(9): 21-28.

Viewed

Full text

Abstract

Cited

Shared

Discussed