New & Alternative Chemistries

Li-S Battery Technology Confronts Rapid Growth In 2024 With Contrasting Strengths And Weaknesses STRENGTH

WEAKNESS

OPERATING PRINCIPLE

Li dendrite Volume expansion ANODE Unstable SEI

Li metal anode

Chemical reactivity S/Li2S conductivity

Anode: Li ⇔ Li+ + e-

Cathode: S 2Li+ + 2e- ⇔ Li2S

Overall: S8 + 2Li ⇔ Li2S8

E 2.15 V vs. Li / Li+

CATHODE

S/Li2S volume expansion Polysulfide shuttle Sluggish kinetics

Soluble polysulfides Li2Sx, 6≤x≤8

From 2016 to 2024, the number of publications in the web of science focused on Li-S battery increased by 156.2% In 2024, there were 2939 publications with “Li-S batteryˮ as one of the keywords

Source: https://iolitec.de/node/657, Web of Science, Alternative Battery Technologies Roadmap 2030 Fraunhofer ISI, doi:10.24406/publica-1342, Adv. Sci. 2022, 9, 2103879, Front Chem., 2020, 8409

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