Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 민선준 | - |
dc.date.accessioned | 2022-11-28T01:57:36Z | - |
dc.date.available | 2022-11-28T01:57:36Z | - |
dc.date.issued | 2022-09 | - |
dc.identifier.citation | Energy Storage Materials, v. 50.0, Page. 234-242 | - |
dc.identifier.issn | 2405-8297;2405-8297 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S2405829722002689?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/177575 | - |
dc.description.abstract | Even nanostructured Si electrodes have demonstrated stable electrochemical performances in lithium-ion bat-teries (LIBs), complex process and high-cost of nanostructured Si electrodes are far from industry standards. Thus, utilization of commercially available low-cost Si microparticles with high-performance is highly necessary for high-energy-density LIBs. Herein, we demonstrate a simple and scalable method to utilize commercially available Si microparticles (ca. 7 mu m) with wrinkled-multilayered-graphenes (Si-WMGs) for high-areal-capacity LIBs. The WMGs provide not only mechanical flexibility for mitigating large volume change of Si microparticles during deep charge/discharge processes, but also good adhesion property to effectively coalesce Si microparti-cles, and high electrical conductivity, resulting in binder-and conductor-free thick electrodes. The Si-WMG electrodes showed high initial areal capacities of 12.5 mAh cm-2 at 0.1 C and 7.1 mAh cm-2 even at a very high rate of 2 C, with outstanding long-term stability with 5.3 mAh cm-2 at 2 C for over 240 cycles. Furthermore, a full cell composed of Si-WMG and lithium cobalt oxide presented 3.13 mAh cm-2 and a stable cycling per-formance (90.3% retention after 100 cycles) in a practical cell setting, clearly demonstrating the practical applicability of Si-WMG electrodes. Therefore, the WMG as a binder and conductor could be applicable to other electrodes with a large volume change and high mass-loading for high-areal-capacity LIBs. | - |
dc.description.sponsorship | Acknowledgements This work was financially supported by LG Chem Ltd. and the Na-tional Research Foundation of Korea (NRF-2020R1A4A4079870 andNRF-2021R1A2C1008718) . This work also was supported by the GRRC program of Gyeonggi province (GRRCHanyang2020-B01) . | - |
dc.language | en | - |
dc.publisher | Elsevier BV | - |
dc.subject | Wrinkled-multilayered-graphene | - |
dc.subject | Si microparticle | - |
dc.subject | Lithium-ion battery | - |
dc.subject | High-areal-capacity | - |
dc.subject | Binder-& conductor-free electrode | - |
dc.title | High-areal-capacity of micron-sized silicon anodes in lithium-ion batteries by using wrinkled-multilayered-graphenes | - |
dc.type | Article | - |
dc.relation.volume | 50.0 | - |
dc.identifier.doi | 10.1016/j.ensm.2022.05.025 | - |
dc.relation.page | 234-242 | - |
dc.relation.journal | Energy Storage Materials | - |
dc.contributor.googleauthor | Heo, Incheol | - |
dc.contributor.googleauthor | Kim, Sangyeop | - |
dc.contributor.googleauthor | Yang, Jihye | - |
dc.contributor.googleauthor | Kim, Jangbae | - |
dc.contributor.googleauthor | Min, Sun-Joon | - |
dc.contributor.googleauthor | Chae, Jonghyun | - |
dc.contributor.googleauthor | Yoo, Won Cheol | - |
dc.contributor.googleauthor | Kang, Min Seok | - |
dc.sector.campus | E | - |
dc.sector.daehak | 과학기술융합대학 | - |
dc.sector.department | 화학분자공학과 | - |
dc.identifier.pid | sjmin | - |
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