Cation-doped ZnS catalysts for polysulfide conversion in lithium–sulfur batteries
Journal Article
·
· Nature Catalysis
Catalytic conversion of polysulfides is regarded as a crucial approach to enhancing kinetics and suppressing the shuttle effect in lithium-sulfur (Li-S) batteries. However, the activity prediction of Li-S catalysts remains elusive owing to the lack of mechanistic understanding of activity descriptors. Here, we report a volcano-shaped relationship between polysulfide adsorption ability and catalytic activity. In conjunction with theoretical analysis, we distinguish catalytic and anchoring effects to delineate the role of adsorption and emphasize the passivation of catalysts. These findings enable us to develop a composite catalyst, Co0.125Zn0.875S, which shows higher performance than simple binary compounds. Such a fundamental understanding of the intrinsic link between polysulfide adsorption and catalytic activity offers a rational viewpoint for designing Li-S catalysts and tuning their activities.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- National Natural Science Foundation of China; USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technologies (VTO)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1967433
- Journal Information:
- Nature Catalysis, Journal Name: Nature Catalysis Journal Issue: 6 Vol. 5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Recent advances in polysulfide mediation of lithium-sulfur batteries via facile cathode and electrolyte modification
Design Principles of Single Atoms on Carbons for Lithium–Sulfur Batteries
Revisiting the Role of Polysulfides in Lithium–Sulfur Batteries
Journal Article
·
2019
· APL Materials
·
OSTI ID:1572833
Design Principles of Single Atoms on Carbons for Lithium–Sulfur Batteries
Journal Article
·
2020
· Small Methods
·
OSTI ID:1765453
Revisiting the Role of Polysulfides in Lithium–Sulfur Batteries
Journal Article
·
2018
· Advanced Materials
·
OSTI ID:1471513