Exploring failure mechanism studies for lithium-sulfur battery pouch cells

Abstract

The continuous decline of fossil fuel reserves calls attention and deserves proper accordance. Lithium-sulfur battery (LSB) is one of the candidates to be an effective and efficient energy storage device. Commercializing LSBs has been challenging despite remarkable breakthroughs from research on coin cell formats. These developments in cathode, electrolyte, separator, and lithium metal anode protection have seen an indirect relationship when used in pouch cell format. This mini-review highlights the recent failure mechanism studies performed on LSB pouch cells to provide a better understanding of the components that require careful attention in terms of optimization and modification aspects. Appropriate electrolyte components and robust design of separators are the necessary components of the LSB pouch cells that significantly affect the cycling life and electrochemical performance. Scaling up to pouch cell format requires a holistic modification and optimization of battery components.