Sustainable ZIF‐67/Mo‐MXene‐Derived Nanoarchitecture Synthesis: An Enhanced Durable Performance of Lithium–Selenium Batteries

• DOI: 10.1002/smtd.202400294
• Publication Date: 2024-03-28T11:20:10Z
• Authors: Sowjanya Vallem; Seunghyun Song; Yoonju Oh; Joonho Bae
• Keywords: Dimethyl carbonate

Abstract Selenium‐based electrodes have garnered attention for their high electrical conductivity, compatibility with carbonate electrolytes, and volumetric capacity comparable to sulfur electrodes. However, real‐time application is hindered by rapid deterioration from the “shuttle effect” of polyselenides volume fluctuations. To address these challenges, a hybrid Se@ZIF‐67/Mo‐MXene‐derived (Se@Co‐NC/Mo 2 C) nanoarchitecture developed via an economically viable in situ electrostatic self‐assembly ZIF‐67 Mo C nanosheets. The catalytic effects porous framework Co‐NC/Mo enhance electrode attributes, promoting superior adsorption conversion lithium facile ion/electron transport within electrode, resulting stable electrochemical performance. Lithium–selenium batteries (LSeBs) exhibit remarkable characteristics, boasting specific exceptional durability. Se@Co‐NC/Mo delivers reversible 503.5 mAh g −1 at 0.5 98% retention, 100% Coulombic efficiency, cyclic durability through 8600 cycles. In sustainability tests 10C/1C charging/discharging, demonstrates optimistic ≈370.6 93% retention 3100 th cycle carbonate‐based electrolyte ≈181.3 92% after 5000 cycles ether‐based electrolyte, indicating stability practical rechargeable batteries. This cost‐effective efficient approach holds significant potential high‐performance durable LSeBs.