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dc.contributor.author황장연-
dc.date.accessioned2019-07-17T04:52:54Z-
dc.date.available2019-07-17T04:52:54Z-
dc.date.issued2019-02-
dc.identifier.citationACS NANO, V.13, No.2, Page. 2624-2633en_US
dc.identifier.issn1936-0851-
dc.identifier.issn1936-086X-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acsnano.9b00169-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/107513-
dc.description.abstractWith the ever-increasing demand for lithium-ion batteries (LIBs) with higher energy density, tremendous attention has been paid to design various silicon-active materials as alternative electrodes due to their high theoretical capacity (ca. 3579 mAh g(-1)). However, totally replacing the commercially utilized graphite with silicon is still insurmountable owing to bottlenecks such as low electrode loading and insufficient areal capacity. Thus, in this study, we turn back to enhanced graphite electrode through the cooperation of modified silicon via a facile and scalable blending process. The modified nano/microstructured silicon with boron doping and carbon nanotube wedging (B-Si/CNT) can provide improved stability (88.2% retention after 200 cycles at 2000 mA g(-1)) and high reversible capacity (similar to 2426 mAh g(-1)), whereas the graphite can act as a tough framework for high loading. Owing to the synergistic effect, the resultant B-Si/CNT-graphite composite (B-Si/CNT@G) shows a high areal capacity of 5.2 mAh cm(-2) and excellent cycle retention of 83.4% over 100 cycles, even with ultrahigh active mass loading of 11.2 mg cm(-2),which could significantly surpass the commercially used graphite electrode. Notably, the composite also exhibits impressive application in Li-ion full battery using 2 mol % Al-doped full-concentration-gradient Li[Ni0.76Co0.09Mn0.15]O-2 (Al2-FCG76) as the cathode with excellent capacity retention of 82.5% even after 300 cycles and an outstanding energy density (8.0 mWh cm(-2)) based on the large mass loading of the cathode (12.0 mg cm(-2)).en_US
dc.description.sponsorshipThis work was mainly supported by the Global Frontier R&D Program (2013M3A6B1078875) of the Center for Hybrid Interface Materials (HIM) funded by the Ministry of Science, Information & Communication Technology (ICT) and by a National Research Foundation of Korea (NRF) grant funded by the Korea government Ministry of Education and Science Technology (MEST) (NRF-2018R1A2B3008794). P.L. also acknowledges the support from the China Scholarship Council (CSC).en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectsiliconen_US
dc.subjectgraphiteen_US
dc.subjectelectrode loadingen_US
dc.subjectareal capacityen_US
dc.subjectlithium ion batteryen_US
dc.titleNano/Microstructured Silicon–Graphite Composite Anode for High-Energy-Density Li-Ion Batteryen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acsnano.9b00169-
dc.relation.page2624-2633-
dc.relation.journalACS NANO-
dc.contributor.googleauthorLi, Peng-
dc.contributor.googleauthorHwang, Jang-Yeon-
dc.contributor.googleauthorSun, Yang-Kook-
dc.relation.code2019002974-
dc.sector.campusS-
dc.sector.daehakCENTER FOR CREATIVE CONVERGENCE EDUCATION[S]-
dc.identifier.pidghkdwkd-
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