Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells
Abstract The viability of lithium‐sulfur (Li–S) batteries toward real implementation directly correlates with unlocking lithium polysulfide (LiPS) evolution reactions. Along this line, designing promotors with the function of synchronously relieving LiPS shuttle and promoting sulfur conversion is cr...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-11-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202204027 |
| _version_ | 1811210004742537216 |
|---|---|
| author | Xuan Cao Menglei Wang Yuanli Li Le Chen Lixian Song Wenlong Cai Wei Zhang Yingze Song |
| author_facet | Xuan Cao Menglei Wang Yuanli Li Le Chen Lixian Song Wenlong Cai Wei Zhang Yingze Song |
| author_sort | Xuan Cao |
| collection | DOAJ |
| description | Abstract The viability of lithium‐sulfur (Li–S) batteries toward real implementation directly correlates with unlocking lithium polysulfide (LiPS) evolution reactions. Along this line, designing promotors with the function of synchronously relieving LiPS shuttle and promoting sulfur conversion is critical. Herein, the nitrogen evolution on hierarchical and atomistic Ni–N–C electrocatalyst, mainly pertaining to the essential subtraction, reservation and coordination of nitrogen atoms, is manipulated to attain favorable Li–S pouch cell performances. Such rational evolution behavior realizes the “nitrogen balance” in simultaneously regulating the Ni–N coordination environment, Ni single atom loading, abundant vacancy defects, active nitrogen and electron conductivity, and maximizing the electrocatalytic activity elevation of Ni–N–C system. With such merit, the cathode harvests favorable performances in a soft‐packaged pouch cell prototype even under high sulfur mass loading and lean electrolyte usage. A specific energy density up to 405.1 Wh kg−1 is harvested by the 0.5‐Ah‐level pouch cell. |
| first_indexed | 2024-04-12T04:48:38Z |
| format | Article |
| id | doaj.art-f6fe882e059d4a67b2e27e0e505bb9f2 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-12T04:48:38Z |
| publishDate | 2022-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-f6fe882e059d4a67b2e27e0e505bb9f22022-12-22T03:47:24ZengWileyAdvanced Science2198-38442022-11-01933n/an/a10.1002/advs.202204027Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch CellsXuan Cao0Menglei Wang1Yuanli Li2Le Chen3Lixian Song4Wenlong Cai5Wei Zhang6Yingze Song7State Key Laboratory of Environment‐Friendly Energy Materials Tianfu Institute of Research and Innovation School of Materials and Chemistry Southwest University of Science and Technology Mianyang Sichuan 621010 P. R. ChinaCollege of Energy Soochow Institute for Energy and Materials Innovation Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu 215006 P. R. ChinaState Key Laboratory of Environment‐Friendly Energy Materials Tianfu Institute of Research and Innovation School of Materials and Chemistry Southwest University of Science and Technology Mianyang Sichuan 621010 P. R. ChinaState Key Laboratory of Environment‐Friendly Energy Materials Tianfu Institute of Research and Innovation School of Materials and Chemistry Southwest University of Science and Technology Mianyang Sichuan 621010 P. R. ChinaState Key Laboratory of Environment‐Friendly Energy Materials Tianfu Institute of Research and Innovation School of Materials and Chemistry Southwest University of Science and Technology Mianyang Sichuan 621010 P. R. ChinaDepartment of Advanced Energy Materials College of Materials Science and Engineering Sichuan University Chengdu Sichuan 610064 P. R. ChinaChongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 P. R. ChinaState Key Laboratory of Environment‐Friendly Energy Materials Tianfu Institute of Research and Innovation School of Materials and Chemistry Southwest University of Science and Technology Mianyang Sichuan 621010 P. R. ChinaAbstract The viability of lithium‐sulfur (Li–S) batteries toward real implementation directly correlates with unlocking lithium polysulfide (LiPS) evolution reactions. Along this line, designing promotors with the function of synchronously relieving LiPS shuttle and promoting sulfur conversion is critical. Herein, the nitrogen evolution on hierarchical and atomistic Ni–N–C electrocatalyst, mainly pertaining to the essential subtraction, reservation and coordination of nitrogen atoms, is manipulated to attain favorable Li–S pouch cell performances. Such rational evolution behavior realizes the “nitrogen balance” in simultaneously regulating the Ni–N coordination environment, Ni single atom loading, abundant vacancy defects, active nitrogen and electron conductivity, and maximizing the electrocatalytic activity elevation of Ni–N–C system. With such merit, the cathode harvests favorable performances in a soft‐packaged pouch cell prototype even under high sulfur mass loading and lean electrolyte usage. A specific energy density up to 405.1 Wh kg−1 is harvested by the 0.5‐Ah‐level pouch cell.https://doi.org/10.1002/advs.202204027catalytic activityhigh energylithium‐sulfur pouch cellsNi–N–C promotornitrogen balance |
| spellingShingle | Xuan Cao Menglei Wang Yuanli Li Le Chen Lixian Song Wenlong Cai Wei Zhang Yingze Song Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells Advanced Science catalytic activity high energy lithium‐sulfur pouch cells Ni–N–C promotor nitrogen balance |
| title | Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells |
| title_full | Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells |
| title_fullStr | Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells |
| title_full_unstemmed | Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells |
| title_short | Nitrogen Balance on Ni–N–C Promotor for High‐Energy Lithium‐Sulfur Pouch Cells |
| title_sort | nitrogen balance on ni n c promotor for high energy lithium sulfur pouch cells |
| topic | catalytic activity high energy lithium‐sulfur pouch cells Ni–N–C promotor nitrogen balance |
| url | https://doi.org/10.1002/advs.202204027 |
| work_keys_str_mv | AT xuancao nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT mengleiwang nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT yuanlili nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT lechen nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT lixiansong nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT wenlongcai nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT weizhang nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells AT yingzesong nitrogenbalanceonnincpromotorforhighenergylithiumsulfurpouchcells |