Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 송태섭 | - |
dc.date.accessioned | 2019-12-06T02:34:59Z | - |
dc.date.available | 2019-12-06T02:34:59Z | - |
dc.date.issued | 2018-03 | - |
dc.identifier.citation | ACS NANO, v. 12, no. 3, page. 2827-2837 | en_US |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.issn | 1936-086X | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsnano.8b00118 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/117823 | - |
dc.description.abstract | A key issue with Na-ion batteries is the development of active materials with stable electrochemical reversibility through the understanding of their sodium storage mechanisms. We report a sodium storage mechanism and properties of a new anode material, digenite Cu1.8S, based on its crystallographic study. It is revealed that copper sulfides (CuxS) can have metal-rich formulas (x >= 1.6), due to the unique oxidation state of +1 found in group 11 elements. These phases enable the unit cell to consist of all strong Cu-S bonds and no direct S-S bonds, which are vulnerable to external stress/strain that could result in bond cleavage as well as decomposition. Because of its structural rigidness, the Cu1.8S shows an intercalation/deintercalation reaction mechanism even in a low potential window of 0.1-2.2 V versus Na/Na+ without irreversible phase transformation, which most of the metal sulfides experience through a conversion reaction mechanism. It uptakes, on average, 1.4 Na+ ions per unit cell (similar to 250 mAh g(-1)) and exhibits similar to 100% retention over 1000 cycles at 2C in a tuned voltage range of 0.5-2.2 V through an overall solid solution reaction with negligible phase separation. | en_US |
dc.description.sponsorship | This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry, & Energy (MOTIE) of the Republic of Korea through the research on Li-ion batteries (20168510050080), Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (2016R1C1B2007299), and the research fund of Hanyang University (HY-2017). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | metal sulfide | en_US |
dc.subject | digenite Cu1.8S | en_US |
dc.subject | intercalation | en_US |
dc.subject | anode | en_US |
dc.subject | sodium ion batteries | en_US |
dc.title | Unusual Na+ Ion Intercalation/Deintercalation in Metal-Rich Cu1.8S for Na-Ion Batteries | en_US |
dc.type | Article | en_US |
dc.relation.no | 3 | - |
dc.relation.volume | 12 | - |
dc.identifier.doi | 10.1021/acsnano.8b00118 | - |
dc.relation.page | 2827-2837 | - |
dc.relation.journal | ACS NANO | - |
dc.contributor.googleauthor | Park, Hyunjung | - |
dc.contributor.googleauthor | Kwon, Jiseok | - |
dc.contributor.googleauthor | Choi, Heechae | - |
dc.contributor.googleauthor | Shin, Donghyeok | - |
dc.contributor.googleauthor | Song, Taeseup | - |
dc.contributor.googleauthor | Lou, Xiong Wen David | - |
dc.relation.code | 2018000602 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | tssong | - |
dc.identifier.orcid | https://orcid.org/0000-0002-1174-334X | - |
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