3 years ago

Nanoconfined Oxidation Synthesis of N-Doped Carbon Hollow Spheres and MnO2 Encapsulated Sulfur Cathode for Superior Li-S Batteries

Nanoconfined Oxidation Synthesis of N-Doped Carbon Hollow Spheres and MnO2 Encapsulated Sulfur Cathode for Superior Li-S Batteries
Jiangwen Liu, Jun Liu, Min Zhu, Zhengbo Liu, Renzong Hu, Jiadong Shen
A new nanoconfined oxidation route for sulfur cathode encapsulated with MnO2 nanosheets and N-doped carbon hollow spheres for Li-S batteries was demonstrated through the first complete oxidation of metal sulfide CdS and subsequent partial oxidation of the generated S from sulfide. This route can confine the sulfur particles in the carbon shell interior, and the rationally introduced non-polar carbon and polar MnO2 can both reduce the dissolution of polysulfide during the charge–discharge process. The obtained S-MnO2@C cathode exhibits high specific capacity with excellent cycling performance and rate capability. More information can be found in the Full Paper by J. Liu et al. (DOI: 10.1002/chem.201704590).

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201800220

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