Summary/ Reader Response Draft #3
The article "How an accidental discovery made this year could change the world." written by Lockett (April, 2022), introduces the discovery of Lithium-sulfur (Li-S) batteries and their benefits with it. The Li-S batteries are cheaper to make, use environmentally friendly materials, can be three times lighter, and have a low chance of catching fire compared to lithium-ion (Li-ion) batteries, but Li-S batteries typically have around 1000 charge cycles. Hence, there is a need to increase its charge cycles. However, according to the author, researchers find it difficult to increase the charge cycle of Li-S batteries by changing compounds in the battery’s cathode. “The uncontrolled dendritic and lithium growth, as well as electrolyte decomposition inherent in lithium metal-based batteries, cause safety issues and low Coulombic efficiency.” as observed by Li et al (June 2015). This causes a shuttling effect on Li-S batteries, due to the dissolution of lithium-polysulfides formed wh...