DICP OpenIR
Relationship between activity and structure of carbon materials for Br-2/Br- in zinc bromine flow batteries
Wang, Chenhui1,3; Li, Xianfeng1,2; Xi, Xiaoli1,3; Xu, Pengcheng1; Lai, Qinzhi1; Zhang, Huamin1,2
Source PublicationRSC ADVANCES
2016
ISSN2046-2069
DOI10.1039/c6ra03712g
Volume6Issue:46Pages:40169-40174
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordENERGY-STORAGE ; REDOX ; PERFORMANCE ; NANOTUBES ; ELECTROLYTE ; PROGRESS
AbstractZinc bromine flow battery (ZBFB) is one of the highly efficient and low cost energy storage devices. However, the low operating current density hinders its progress. Developing high activity cathode materials is an efficient way to reduce cell electrochemical polarization and improve the operating current density. Thus, it is essential to study the relationship between the activity and structure of carbon materials to optimize the performance of ZBFB. The pore parameters and phase structure of four commercialized carbon materials were investigated by an N-2 sorption isotherm experiment and X-ray diffraction (XRD), respectively. The electrochemical property of the four carbon materials was systematically studied by cyclic voltammetry (CV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) and the kinetic parameters and diffusion coefficients were calculated. The results indicate that specific surface area, pore size distribution and electrical conductivity are the main factors affecting the electrochemical activity of carbon materials. The carbon material with high surface area, suitable pore size distribution and excellent electrical conductivity shows high activity to the Br-2/Br- redox couple in ZBFB. This study lays foundations for developing cathode materials of excellent activity for ZBFB, which can efficiently improve the power density, reduce the stack size of the ZBFB and boost its potential for commercial application.
Language英语
WOS IDWOS:000374974300076
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/170835
Collection中国科学院大连化学物理研究所
Corresponding AuthorLai, Qinzhi; Zhang, Huamin
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China
2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Wang, Chenhui,Li, Xianfeng,Xi, Xiaoli,et al. Relationship between activity and structure of carbon materials for Br-2/Br- in zinc bromine flow batteries[J]. RSC ADVANCES,2016,6(46):40169-40174.
APA Wang, Chenhui,Li, Xianfeng,Xi, Xiaoli,Xu, Pengcheng,Lai, Qinzhi,&Zhang, Huamin.(2016).Relationship between activity and structure of carbon materials for Br-2/Br- in zinc bromine flow batteries.RSC ADVANCES,6(46),40169-40174.
MLA Wang, Chenhui,et al."Relationship between activity and structure of carbon materials for Br-2/Br- in zinc bromine flow batteries".RSC ADVANCES 6.46(2016):40169-40174.
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