The Strong Chemical Adsorption and Fast Catalytic Conversion of Lithium Polysulfides Promised by Mno/Mns Heterostructure with Abundant Anionic Vacancies

Download This Paper Open PDF in Browser Add Paper to My Library Share: Permalink Using these links will ensure access to this page indefinitely Copy URL The Strong Chemical Adsorption and Fast Catalytic Conversion of Lithium Polysulfides Promised by Mno/Mns Heterostructure with Abundant Anionic Vacancies 19 Pages Posted: 24 Feb 2024 See all articles by Hong TanHong TanWuhan Institute of TechnologyKaiquan HeWuhan Institute of TechnologyPu HuWuhan Institute of TechnologyMan XuWuhan Institute of TechnologyChaoqun ShangWuhan Institute of Technology Abstract The Li-S batteries have great potential in energy storage because of their high theoretical capacity and energy density, low cost and environmental friendliness. However, the practical application of Li-S batteries is hindered by their undesirable electrochemical performance caused by the shuttling effect of soluble lithium polysulfides and sluggish redox kinetics, which needs an efficient immobilizer to achieve fast capture and conversion of lithium polysulfides. This work prepared the heterogeneous MnO/MnS with O/S vacancies (MnO-OV/MnS-SV) by a universal approach combining sol-gel and calcination under a reductive atmosphere with MnSO4·H2O precursor. With the synergistic effect between strong adsorption of MnO-OV and effective catalysis of MnS-SV to lithium polysulfides, the as-prepared MnO-OV/MnS-SV powders with high yield (~45%) are potential candidates to modify commercial polyethylene (PE) separator for large scale application of Li-S batteries. As expected, the Li-S batteries with MnO-OV/MnS-SV modified PE deliver an initial discharge specific capacity of 1251.77 mAh g−1 at 1 C, which can operate for 400 cycles with a decay rate of 0.23% per cycle. Keywords: Li-S batteries, Lithium polysulfides, Heterogeneous MnO-OV/MnS-SV, O/S vacancies, Separator modification Suggested Citation: Suggested Citation Tan, Hong and He, Kaiquan and Hu, Pu and Xu, Man and Shang, Chaoqun, The Strong Chemical Adsorption and Fast Catalytic Conversion of Lithium Polysulfides Promised by Mno/Mns Heterostructure with Abundant Anionic Vacancies. Available at SSRN: https://ssrn.com/abstract=4737802 Hong Tan Wuhan Institute of Technology ( email ) China Kaiquan He Wuhan Institute of Technology ( email ) China Pu Hu Wuhan Institute of Technology ( email ) China Man Xu Wuhan Institute of Technology ( email ) China Chaoqun Shang (Contact Author) Wuhan Institute of Technology ( email ) China Download This Paper Open PDF in Browser Do you have negative results from your research you’d like to share? Submit Negative Results Paper statistics Downloads 0 Abstract Views 12 29 References PlumX Metrics Feedback Feedback to SSRN Feedback (required) Email (required) Submit If you need immediate assistance, call 877-SSRNHelp (877 777 6435) in the United States, or +1 212 448 2500 outside of the United States, 8:30AM to 6:00PM U.S. Eastern, Monday - Friday.