In-Operando FTIR Spectroscopy Study on Rapid Polysulfide Binding via Caffeine in Lithium–Sulfur Batteries
Taber Yim, Rhyz Pereira, Jantakan Nedsaengtip, Aaron T Fafarman, Vibha Kalra · 2024
Read In-Operando FTIR Spectroscopy Study on Rapid Polysulfide Binding via Caffeine in Lithium–Sulfur Batteries by Taber Yim, Rhyz Pereira, Jantakan Nedsaengtip, Aaron T Fafarman, Vibha Kalra (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11648080.txt.
Description
Taber Yim and co-authors report a 2024 study on a common kitchen chemical, caffeine, inside lithium-sulfur batteries. Such batteries hold much charge, but sulfur compounds drift from one side to the other as they run. That drift, called shuttling, wastes active material and harms the lithium side. Additives can slow the drift, yet how they work is often unclear.
The team shows for the first time that caffeine cuts the drift current and slows the loss of charge over many cycles. A light-based test run while the battery worked showed shifts in caffeine's own signals. Those shifts rose and fell with the birth of the drifting compounds. The pattern fits a mild pull between caffeine and the compounds, which holds them back.
Catalog record
| CREATOR | Taber Yim, Rhyz Pereira, Jantakan Nedsaengtip, Aaron T Fafarman, Vibha Kalra |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 21 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |