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Ultrahigh-capacity semi-solid SiOx anolytes enabled by robust nanotube conductive networks for Li-ion flow batteries

文献类型：期刊论文

作者Pan, Shanshan1,2; Zhang, Haitao1,2; Xing, Chunxian2; Yang, Lipeng2; Su, Peipei1,2; Bi, Jingjing2; Zhang, Suojiang1,2
刊名JOURNAL OF POWER SOURCES
出版日期2021-10-01
卷号508页码:12
ISSN号0378-7753
关键词Li-ion flow batteries Semi-solid anolytes Micro-sized SiOx Robust conductive networks Single-walled carbon nanotubes
DOI10.1016/j.jpowsour.2021.230341
英文摘要Exploring semi-solid anolytes with high volumetric capacity and low potential is of great significance for boosting the energy storage capability of Li-ion flow batteries. Generally, micro-sized SiOx shows promises in fabricating high-capacity anolytes owing to its inherent advantages in specific capacity, processability and cost. However, its poor electronic conductivity and huge volume change result in unexpected issues of loss of electrical connections, structural disintegration, and unstable solid-electrolyte interphase (SEI). Herein, these issues are addressed by constructing robust conductive networks throughout anolytes by employing single-walled carbon nanotubes (SWCNT) as conductive additives. Compared with loose networks constructed by KB, such robust networks can facilitate continuous electrons transport and improve particle integrity. SiOx anolytes with robust networks display an ultrahigh capacity, excellent rate capability, and stable cyclability in static cells. Furthermore, as-prepared anolytes can simultaneously achieve suitable viscosity and superior electronic conductivity. The assembled flow cell demonstrates high volumetric capacities of 74.7-98.0 Ah L-1 under the static test and the feasibility in long-term continuous-flow mode. Our successful demonstration of SiOx semi-solid anolytes may be helpful for the construction of high-energy-density flow batteries.
WOS关键词ELECTROCHEMICAL PERFORMANCE ; CHARGE-TRANSPORT ; CARBON-BLACK ; SUSPENSIONS ; ELECTRODES ; SILICON ; ENERGY ; COMPOSITE ; ANODES
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] ; K.C. Wong Education Foundation[GJTD-2018-04]
WOS研究方向Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种英语
出版者ELSEVIER
WOS记录号WOS:000686598500006
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 ; K.C. Wong Education Foundation
源URL[http://ir.ipe.ac.cn/handle/122111/49913]  
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.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Shanshan,Zhang, Haitao,Xing, Chunxian,et al. Ultrahigh-capacity semi-solid SiOx anolytes enabled by robust nanotube conductive networks for Li-ion flow batteries[J]. JOURNAL OF POWER SOURCES,2021,508:12.
APA Pan, Shanshan.,Zhang, Haitao.,Xing, Chunxian.,Yang, Lipeng.,Su, Peipei.,...&Zhang, Suojiang.(2021).Ultrahigh-capacity semi-solid SiOx anolytes enabled by robust nanotube conductive networks for Li-ion flow batteries.JOURNAL OF POWER SOURCES,508,12.
MLA Pan, Shanshan,et al."Ultrahigh-capacity semi-solid SiOx anolytes enabled by robust nanotube conductive networks for Li-ion flow batteries".JOURNAL OF POWER SOURCES 508(2021):12.

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来源：过程工程研究所

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