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Ultrahigh-capacity semi-solid SiOx anolytes enabled by robust nanotube conductive networks for Li-ion flow batteries
Pan, Shanshan1,2; Zhang, Haitao1,2; Xing, Chunxian1; Yang, Lipeng1; Su, Peipei1,2; Bi, Jingjing1; Zhang, Suojiang1,2
2021-10-01
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume508Pages:12
AbstractExploring 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.
KeywordLi-ion flow batteries Semi-solid anolytes Micro-sized SiOx Robust conductive networks Single-walled carbon nanotubes
DOI10.1016/j.jpowsour.2021.230341
Language英语
WOS KeywordELECTROCHEMICAL PERFORMANCE ; CHARGE-TRANSPORT ; CARBON-BLACK ; SUSPENSIONS ; ELECTRODES ; SILICON ; ENERGY ; COMPOSITE ; ANODES
Funding ProjectNational 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 Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational 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
WOS IDWOS:000686598500006
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49914
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Haitao; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
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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