Controllable synthesis of high loading LiFePO4/C nanocomposites using bimodal mesoporous carbon as support for high power Li-ion battery cathodes-中国Betway体育网页登陆

摘要 MesoporousLiFePO4/Ccompositescontaining80wt%ofhighlydispersedLiFePO4nanoparticles(4-6nm)werefabricatedusingbimodalmesoporouscarbon(BMC)ascontinuousconductivenetworks.TheuniqueporestructureofBMCnotonlypromisesgoodparticleconnectivityforLiFePO4,butalsoactsasarigidnano-confinementsupportthatcontrolstheparticlesize.Furthermore,thecapacitieswereinvestigatedrespectivelybasedontheweightofLiFePO4andthewholecomposite.Whencalculatedbasedontheweightofthewholecomposite,itis120mAh·g-1at0.1Cofthehighloadingelectrodeand42mAh·g-1at10Cofthelowloadingelectrode.TheelectrochemicalperformanceshowsthathighLiFePO4loadingbenefitslargetapdensityandcontributestotheenergystorageatlowrates,whiletheelectrodewithlowcontentofLiFePO4displayssuperiorhighrateperformance,whichcanmainlybeduetothesmallparticlesize,gooddispersionandhighutilizationoftheactivematerial,thusleadingtoafastionandelectrondiffusion.

1Qiangqiang Tan;Bo Yan;Yuxing Xu;Yunfa Chen;Jun Yang.Preparation and electrochemical performance of carbon-coated LiFePO4/LiMnPO4-positive material for a Li-ion battery.力学,2017-01.
2ZHOU Jianxin SHEN Xiangqian JING Maoxiang ZHAN Yun.Synthesis and electrochemical performances of spherical LiFePO4 cathode materials for Li-ion batteries.金属材料,2006-04.
3Guan Wu;Ran Ran;Bote Zhao;Yujing Sha;Chao Su;Yingke Zhou;Zongping Shao.3D amorphous carbon and graphene co-modified LiFePO4 composite derived from polyol process as electrode for high power lithium-ion batteries.物理,2014-03.
4ZHANG Ying PAN Yue LIU Jia WANG Guiling CAO Dianxue.Synthesis and Electrochemical Studies of Carbon-modified LiNiPO4 as the Cathode Material of Li-ion Batteries.化学,2015-01.
5Xu Guang Gao Guo Rong Hu Zhong Dong Peng Ke Du Xin Rong Deng.Pure LiFePO4 with high energy density prepared by water quenching treatment.化学,2007-10.
6Xin Li;Yu Zhi Jiang;Xi Kun Li;Hai Xia Jiang;Jun Long Liu;Jun Feng;Shi Bin Lin;Xin Guan.Electrochemical property of LiFePO4/C composite cathode with different carbon sources.金属材料,2018-09.
7YAN Shijian;ZHANG Mingang;CHAI Yuesheng;TIAN Wenhuai.Chemical Extraction Preparation of Delithiated Cathode Materials of Li-ion Battery.材料科学与工程,2009-06.
8Olivier Gerber;Sylvie Bégin-Colin;Benoit P.Pichon;Elodie Barraud;Sébastien Lemonnier;Cuong Pham-Huu;Barbara Daffos;Patrice Simon;Jeremy Come;Dominique Bégin.Design of Fe（3–x）O4 raspberry decorated graphene nanocomposites with high performances in lithium-ion battery.物理,2016-02.
9Jianfei Yu;Lin Zhu;Cheng Fan;Cheng Zan;Ling Hu;Shuhui Yang;Qiang Zhang;Wancheng Zhu;Lin Shi;Fei Wei.Highly dispersed Mn2O3 microspheres： Facile solvothermal synthesis and their application as Li-ion battery anodes.力学,2015-05.
10Decheng An;Lu Shen;Danni Lei;Lehong Wang;Heng Ye;Baohua Li;Feiyu Kang;Yan-Bing He.An ultrathin and continuous Li4Ti5O12 coated carbon nanofiber interlayer for high rate lithium sulfur battery.物理,2019-04.

Controllable synthesis of high loading LiFePO4/C nanocomposites using bimodal mesoporous carbon as support for high power Li-ion battery cathodes

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