DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, Jeongwoo | ko |
dc.contributor.author | Park, Jae Hyun | ko |
dc.contributor.author | Gim, Hyeonseo | ko |
dc.contributor.author | Choi, Wonyeong | ko |
dc.contributor.author | Lee, Heecheon | ko |
dc.contributor.author | Lee, Sang Yeon | ko |
dc.contributor.author | Lee, Jae Woo | ko |
dc.date.accessioned | 2021-07-07T00:50:25Z | - |
dc.date.available | 2021-07-07T00:50:25Z | - |
dc.date.created | 2021-07-02 | - |
dc.date.created | 2021-07-02 | - |
dc.date.created | 2021-07-02 | - |
dc.date.created | 2021-07-02 | - |
dc.date.issued | 2021-06-01 | - |
dc.identifier.citation | 239th ECS Metting with the 18th International Meeting on Chemical Sensors (IMCS) | - |
dc.identifier.uri | http://hdl.handle.net/10203/286461 | - |
dc.description.abstract | Shuttle phenomena of lithium polysulfides (LiPSs) in lithium sulfur (Li-S) batteries is a serious obstacle to commercialization of Li-S battery. Various studies are being conducted to mitigate the shuttle effect, but among them, the approach using an interlayer has been introduced. This study proposes a hierarchical carbon material for both carbon cathode composite and interlayer synthesized from gaseous carbon dioxide. The highly porous carbon material used as a cathode enables a homogeneous distribution of active materials such as sulfur without agglomeration and allows rapid diffusion of ions. In addition, the interlayer made in this study is 30wt% lighter than the existing fiber-type paper layer based on its high porosity and at the same time has a very high 15.5% nitrogen atoms. Excess N atoms including pyridinic-N and pyrrolic-N contained in the interlayer prevent diffusion of LiPSs to the counter electrode through strong chemical bonds with LiPSs, and also greatly improve conductivity, minimizing resistance related to charge transfer. As a result, the cells assembled with them maintain a capacity of 700 mAh g−1 after 500 cycles at 0.5 C. In addition, it can exhibit a capacity of 697 mAh g−1 even at a high current density of 7.0 C. | - |
dc.language | English | - |
dc.publisher | The Electrochemical Society | - |
dc.title | CO2-Derived Hierarchical Porous Carbon Electrode and Interlayer Doped with Nitrogen for Lithium-Sulfur Battery | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.citation.publicationname | 239th ECS Metting with the 18th International Meeting on Chemical Sensors (IMCS) | - |
dc.identifier.conferencecountry | US | - |
dc.identifier.conferencelocation | Chicago | - |
dc.contributor.localauthor | Lee, Jae Woo | - |
dc.contributor.nonIdAuthor | Gim, Hyeonseo | - |
dc.contributor.nonIdAuthor | Lee, Sang Yeon | - |
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