"Gluing Carbon Black and Sulfur at Nanoscale: A Polydopamine-Based “Nano-Binder” for Double-Shelled Sulfur Cathodes"

Feng Wu: Yusheng Ye, Renjie Chen, Teng Zhao, Ji Qian, Xiaoxiao Zhang, Li Li, Qianming Huang, Xuedong Bai, and Yi Cui; Advanced Energy Materials, 10/19/16.

Additional Authors: Yusheng Ye, Renjie Chen, Teng Zhao, Ji Qian, Xiaoxiao Zhang, Li Li, Qianming Huang, Xuedong Bai, and Yi Cui

Abstract:

A Polydopamine-based “nano-binder”, which can glue carbon and sulfur at nanoscale, is used to construct stable double-shelled sulfur cathodes. This unique hierarchical design for S cathode can not only offer a physical barrier for trapping polysulfides, but also prevent conducting carbon black from detaching to cathode surface. Polydopamine with high elasticity and excellent isotropy can prevent the cathode from deformation.

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