CAS OpenIR
Intensified Energy Storage in High-Voltage Nanohybrid Supercapacitors via the Efficient Coupling between TiNb2O7/Holey-rGO Nanoarchitectures and Ionic Liquid-Based Electrolytes
Liu, Ao1; Zhang, Haitao1; Xing, Chunxian1; Wang, Yanlei1; Zhang, Junwei2; Zhang, Xixiang2; Zhang, Suojiang1
2021-05-12
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume13Issue:18Pages:21349-21361
AbstractObtaining a comprehensive understanding of the energy storage mechanisms, interface compatibility, electrode-electrolyte coupling, and synergistic effects in carefully programmed nanoarchitectural electrodes and complicated electrolyte systems will provide a shortcut for designing better supercapacitors. Here, we report the intrinsic relationships between the electrochemical performances and microstructures or composition of complex nanoarchitectures and formulated electrolytes. We observed that isolated TiNb2O7 nanoparticles provided both a Faradaic intercalation contribution and a surface pseudocapacitance. The holey graphenes partitioned by nanoparticles not only fostered the fast transport of both electrons and ions but also provided additional electrical double-layer capacitance. The charge contributions from the diffusion-controlled intercalation process and capacitive behaviors, double-layer charging, and pseudocapacitance, were quantitatively distinguished in different electrolytes including a formulated ionic-liquid mixture, various nanocomposite ionogel electrolytes, and an organic LiPF6 electrolyte. A steered molecular dynamics simulation method was used to unveil the underlying principles governing the high-rate capability of holey nanoarchitectures. High energy density and high rate capability in solid-state supercapacitors were achieved using the Faradaic contributions from the lithium-ion insertion process and its surface charge-transfer process in combination with the non-Faradaic contribution from the double-layer effects. The work suggests that practical high-voltage supercapacitors with programmed performances and high safety can be realized via the efficient coupling between emerging nanoarchitectural electrodes and formulated high-voltage electrolytes.
Keywordsupercapacitor electrolytes energy storage mechanism nanoarchitectures ion transport
DOI10.1021/acsami.1c03266
Language英语
WOS KeywordPOLYMER ELECTROLYTES ; ELECTROCHEMICAL IMPEDANCE ; ANODE MATERIAL ; TIO2 ANATASE ; LITHIUM ; GRAPHENE ; TEMPERATURE ; NANOCOMPOSITE ; PERFORMANCE ; SIMULATION
Funding ProjectNational Key Research and Development Program of China[2019YFA0705601] ; National Natural Science Foundation of China[21878308] ; Key Research Program of Frontier Sciences[QYZDY-SSW-JSC011] ; King Abdullah University of Science and Technology (KAUST), Saudi Arabia
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences ; King Abdullah University of Science and Technology (KAUST), Saudi Arabia
WOS IDWOS:000651750000041
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48990
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, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.King Abdullah Univ Sci & Technol, Div Phys Sci & Engn, Thuwal 239556900, Saudi Arabia
Recommended Citation
GB/T 7714
Liu, Ao,Zhang, Haitao,Xing, Chunxian,et al. Intensified Energy Storage in High-Voltage Nanohybrid Supercapacitors via the Efficient Coupling between TiNb2O7/Holey-rGO Nanoarchitectures and Ionic Liquid-Based Electrolytes[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(18):21349-21361.
APA Liu, Ao.,Zhang, Haitao.,Xing, Chunxian.,Wang, Yanlei.,Zhang, Junwei.,...&Zhang, Suojiang.(2021).Intensified Energy Storage in High-Voltage Nanohybrid Supercapacitors via the Efficient Coupling between TiNb2O7/Holey-rGO Nanoarchitectures and Ionic Liquid-Based Electrolytes.ACS APPLIED MATERIALS & INTERFACES,13(18),21349-21361.
MLA Liu, Ao,et al."Intensified Energy Storage in High-Voltage Nanohybrid Supercapacitors via the Efficient Coupling between TiNb2O7/Holey-rGO Nanoarchitectures and Ionic Liquid-Based Electrolytes".ACS APPLIED MATERIALS & INTERFACES 13.18(2021):21349-21361.
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