Breaking the Limitations of Sulfur Redox Kinetics by Accelerated Li+‑Desolvation in Lithium–Sulfur Batteries (IMAGE)
Caption
- A catalyst desolvation strategy via phosphorus-modulated Ce single-atom catalysts is proposed to reduce the Li+ desolvation barrier and accelerate reaction kinetics.
- The Ce-f orbital achieves a maximized overlap with the S-p orbital, and this strengthened f-d-p orbital hybridization effectively inhibits the diffusion of polysulfide anions through the interlayer.
- Synergizing accelerated Li+ desolvation with suppressed polysulfide shuttling, the batteries demonstrate ultrastable cycling with an ultralow decay rate of 0.036% per cycle over 1700 cycles.
Credit
Tan Wang, Zhenhua Wang*, Xiaotian Gao, Zhe Bai, Wanning Liu, Yu Bai, David Rooney*, Kening Sun*.
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License
CC BY-NC-ND