Mechanistic insights into electrolyte decomposition induced by polysulfide migration in large-scale Li-S battery
Nurulsafeelanaria Benwannamas1, Thitiphum Sangsanit1, Samutr Assavachin1
1Centre of Excellent for Energy Storage Technology (CEST), Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand. montree.s@vistec.ac.th.
Abstract:
Despite their high theoretical energy density, Li-S batteries suffer from polysulfide (PS) migration and electrolyte degradation. Here, we present one of the first integrated operando and ex situ studies in 18650-format Li-S cells, revealing that a sulfur@activated carbon cathode suppresses PS crossover, reduces gas evolution by 35.7-fold, and stabilizes the solid electrolyte interphase (SEI). Multi-technique analysis confirms that cathode architecture is crucial for enabling durable, and scalable Li-S batteries.
More Related Videos
11:04Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
07:20Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
Published on: January 20, 2023
Related Concept Videos
03:00Electrolysis
03:12Batteries and Fuel Cells
02:47Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
03:45Formation of Complex Ions
03:02Standard Electrode Potentials
01:08Electrodeposition
Electrodeposition can...