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Effects of conductive additives on the percolation networks and rheological properties of LiMn0.7Fe0.3PO4 suspensions for lithium slurry battery

文献类型：期刊论文

作者Su, Peipei2,3; Zhang, Haitao2,3; Yang, Lipeng2; Xing, Chunxian2; Pan, Shanshan2,3; Lu, Wei1; Zhang, Suojiang2,3
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2022-04-01
卷号433页码:11
ISSN号1385-8947
关键词Lithium slurry battery LiMn0.7Fe0.3PO4 suspensions Conductive additive percolation networks Rheology
DOI10.1016/j.cej.2021.133203
英文摘要In depth understanding the evaluation behaviors of conductive percolation networks and rheological properties is important for developing high performance suspension electrodes. Herein, three kinds of conductive additives, Ketjen Black, multi-walled carbon nanotubes and graphene nanoplatelets, are utilized to systematically investigate the impacts of dimension and content on the rheological and electrochemical properties of LiMn0.7Fe0.3PO4 suspensions. The percolation threshold ranges are found to be 0.5-0.6 wt.%, 0.2-0.3 wt.% and 2.3-2.4 wt.% for KB, MWCNT and GNP-based suspensions, respectively. The inflection points for electronic conductivities of different conductive additives based suspensions are situated at 1.0 wt.%, 0.5 wt.% and 2.5 wt.%, respectively, and the static viscosities and yield stresses of KB and MWNCT-based suspensions possess the same inflection points as those of electronic conductivities. Nevertheless, GNP-based suspensions deliver a distinguishing tendency due to their relatively poor dispersion. Electrochemical characterizations indicate that 1.5 wt.% KB-based suspension delivers superior cycle and rate performances. Especially, the successful application of LMFP suspension to lithium slurry battery was demonstrated by a relatively stable cycle over 230 h. Our findings will be helpful for the development of lithium slurry batteries with robust conductive networks and high energy density.
WOS关键词REDOX FLOW BATTERIES ; CARBON-BLACK SUSPENSIONS ; LONG-LIFE ; PERFORMANCE ; CATHOLYTE ; BEHAVIOR ; PROGRESS ; SULFUR ; ANODE
资助项目National Key Research and Development Program of China[2019YFA0705601] ; National Natural Science Foundation of China[21878308] ; Major Program of National Natural Science Foundation of China[21890762] ; Key Deployment Programs of the Chinese Academy of Sciences[ZDRW_CN_2020-1] ; Science and Technology Service Network Initiative of CAS[KFJ-STS-QYZD-2021-02-002] ; K.C. Wong Education Foundation[GJTD-2018-04]
WOS研究方向Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000795928000001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Program of National Natural Science Foundation of China ; Key Deployment Programs of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of CAS ; K.C. Wong Education Foundation
源URL[http://ir.ipe.ac.cn/handle/122111/53467]  
专题中国科学院过程工程研究所
通讯作者Zhang, Haitao; Zhang, Suojiang
作者单位1.Chinese Acad Sci, Suzhou Inst Nanotech & Nanob, CAS Ctr Excellence Nanosci, Suzhou 215123, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Su, Peipei,Zhang, Haitao,Yang, Lipeng,et al. Effects of conductive additives on the percolation networks and rheological properties of LiMn0.7Fe0.3PO4 suspensions for lithium slurry battery[J]. CHEMICAL ENGINEERING JOURNAL,2022,433:11.
APA Su, Peipei.,Zhang, Haitao.,Yang, Lipeng.,Xing, Chunxian.,Pan, Shanshan.,...&Zhang, Suojiang.(2022).Effects of conductive additives on the percolation networks and rheological properties of LiMn0.7Fe0.3PO4 suspensions for lithium slurry battery.CHEMICAL ENGINEERING JOURNAL,433,11.
MLA Su, Peipei,et al."Effects of conductive additives on the percolation networks and rheological properties of LiMn0.7Fe0.3PO4 suspensions for lithium slurry battery".CHEMICAL ENGINEERING JOURNAL 433(2022):11.

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来源：过程工程研究所

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