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dc.contributor.author임원빈-
dc.date.accessioned2020-10-16T00:39:41Z-
dc.date.available2020-10-16T00:39:41Z-
dc.date.issued2019-10-
dc.identifier.citationACS NANO, v. 13, no. 10, Page. 11935-11946en_US
dc.identifier.issn1936-0851-
dc.identifier.issn1936-086X-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acsnano.9b06027-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/154607-
dc.description.abstractAlthough sodium hybrid capacitors (NHCs) have emerged as one of the most promising next-generation energy storage systems, further advancement is delayed primarily by the absence of high-performance battery-type anodes. Herein, we report a nature-inspired synthesis route to prepare hard carbon anodes with high capacity, rate capability, and cycle stability for dual-carbon NHCs. Shape- and size-controllable crystal aggregates of inexpensive triazine molecules are utilized as reactive templates that perform triple duties of structure-directing agent, porogen, and nitrogen source. This enables the fine control of microstructure/morphology/composition and thereby electrochemical reactions toward Na-ion. The resulting hard carbon optimized in terms of lateral size, interlayer spacing, and surface affinity of graphene-like layers achieves a specific capacity of similar to 380 mAh/g after 100 cycles at a current density of 250 mA/g mainly via intercalation, the current record of hard carbons. Combined with a commercial microporous carbon fiber cathode, the full cell is able to deliver a volumetric energy density of 2.89 mWh/cm(3) and a volumetric power density of 160 mW/cm(3), outperforming NHCs based on inorganic Na-ion anode materials. More importantly, such performance could not only be retained for 10000 cycles (4.5 F/cm(3) at 10 mA/cm(3)) with 0.000 028 6% loss per cycle at ˃97% Coulombic efficiency but also successfully transferred to flexible pouch cells without significant performance loss after 300 bending cycles or during wrapping at a 10R condition. Simple preparation of hard carbon anodes using organic crystal reactive templates, therefore, demonstrates great potential for the manufacture of high-performance flexible NHCs using only carbon electrode materials.en_US
dc.description.sponsorshipThis work was financially supported by the R&D Convergence Program of NST (National Research Council of Science & Technology) of the Republic of Korea (CAP-1S-02-KBSI), the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2019R1C1C1007745), and the National Research Foundation of Korea (NRF) grant funded by the Korean government (Ministry of Science, ICT & Future Planning) (No. 2019R1A4A2001S27). The authors are grateful to the Center for Research Facilities at Chonnam National University (CCRF) for their assistance in the analysis of the organic structure (XRD, XPS, Raman). We are also grateful to Ha Bin Kang for her help with the scheme image.en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectsodium hybrid capacitoren_US
dc.subjectflexible electrodeen_US
dc.subjecthard carbonen_US
dc.subjectreactive templateen_US
dc.subjectmolecular cooperative assemblyen_US
dc.titleMolecular Cooperative Assembly-Mediated Synthesis of Ultra-High-Performance Hard Carbon Anodes for Dual-Carbon Sodium Hybrid Capacitorsen_US
dc.typeArticleen_US
dc.relation.no10-
dc.relation.volume13-
dc.identifier.doi10.1021/acsnano.9b06027-
dc.relation.page11935-11946-
dc.relation.journalACS NANO-
dc.contributor.googleauthorKang, Hui-Ju-
dc.contributor.googleauthorHuh, Yun Suk-
dc.contributor.googleauthorIm, Won Bin-
dc.contributor.googleauthorJun, Young-Si-
dc.relation.code2019002974-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MATERIALS SCIENCE AND ENGINEERING-
dc.identifier.pidimwonbin-
dc.identifier.researcherIDB-1335-2011-
dc.identifier.orcidhttps://orcid.org/0000-0003-2473-4714-
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COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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