DIKUL - logo
E-resources
Full text
Peer reviewed
  • Radially Inwardly Aligned H...
    Yu, Zhisheng; Liu, Menglan; Guo, Daying; Wang, Jiahui; Chen, Xing; Li, Jun; Jin, Huile; Yang, Zhi; Chen, Xi'an; Wang, Shun

    Angewandte Chemie, April 16, 2020, Volume: 132, Issue: 16
    Journal Article

    Rational design of hollow micro‐ and/or nano‐structured cathodes as sulfur hosts has potential for high‐performance lithium‐sulfur batteries. However, their further commercial application is hindered because infusing sulfur into hollow hosts is hard to control and the interactions between high loading sulfur and electrolyte are poor. Herein, we designed hierarchical porous hollow carbon nanospheres with radially inwardly aligned supporting ribs to mitigate these problems. Such a structure could aid the sulfur infusion and maximize sulfur utilization owing to the well‐ordered pore channels. This highly organized internal carbon skeleton can also enhance the electronic conductivity. The hollow carbon nanospheres with further nitrogen‐doping as the sulfur host material exhibit good capacity and excellent cycling performance (0.044 % capacity degradation per each cycle for 1000 cycles). Innen‐Design: Eine neue Strategie für den Einschluss von Polysulfiden basiert auf dem gezielten Design der inneren Struktur hohler Kohlenstoffkugeln. Poröse N‐dotierte Kohlenstoffnanokugeln mit radialer innerer Struktur wurden durch einen einfachen und skalierbaren Ansatz hergestellt und als Schwefel‐Wirte für hochleistungsfähige Li‐Schwefel‐Batterien eingesetzt.