Details

Autor(en) / Beteiligte

• Yang, Qin
• Cai, Jinyan
• Li, Guanwu
• Gao, Runhua
• Han, Zhiyuan
• Han, Jingjing
• Liu, Dong
• Song, Lixian
• Shi, Zixiong
• Wang, Dong
• Wang, Gongming
• Zheng, Weitao
• Zhou, Guangmin
• Song, Yingze

Titel

Chlorine bridge bond-enabled binuclear copper complex for electrocatalyzing lithium-sulfur reactions

Ist Teil von

• Nature communications, 2024-04, Vol.15 (1), p.3231-3231, Article 3231

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Engineering atom-scale sites are crucial to the mitigation of polysulfide shuttle, promotion of sulfur redox, and regulation of lithium deposition in lithium-sulfur batteries. Herein, a homonuclear copper dual-atom catalyst with a proximal distance of 3.5 Å is developed for lithium-sulfur batteries, wherein two adjacent copper atoms are linked by a pair of symmetrical chlorine bridge bonds. Benefiting from the proximal copper atoms and their unique coordination, the copper dual-atom catalyst with the increased active interface concentration synchronously guide the evolutions of sulfur and lithium species. Such a delicate design breaks through the activity limitation of mononuclear metal center and represents a catalyst concept for lithium-sulfur battery realm. Therefore, a remarkable areal capacity of 7.8 mA h cm is achieved under the scenario of sulfur content of 60 wt.%, mass loading of 7.7 mg cm and electrolyte dosage of 4.8 μL mg .