Acetate-based water-in-salt electrolytes (WiSE) for improved zinc battery cycling [Poster]

Conference · Thu Sep 01 00:00:00 EDT 2022

DOI:https://doi.org/10.2172/2005239· OSTI ID:2005239

Dutta, Debayon ^[1]; Turney, Damon ^[1]; Lambert, Timothy N. ^[2]; Messinger, Robert J. ^[1]; Banerjee, Sanjoy ^[1]

---

1. City College of New York, NY (United States)
2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Grid scale batteries need to be inexpensive to manufacture, safe to operate, and non-toxic in composition. Zinc aqueous (alkaline) batteries hold much promise, but good cycle life and utilization of the zinc has proven difficult partly because zinc is susceptible to H₂ gas evolution in KOH. Water-insalt electrolyte (WiSE) can address this shortcoming by lowering the activity of free water molecules in solution, thus reducing H₂ gas evolution. In this work, we show the relevant fundamental physicochemical properties of an acetate-based WiSE to establish the practicality and performance of this class of WiSE for battery application. Research and understanding of acetate WiSE is in a nascent state, presently.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Electricity (OE)
• DOE Contract Number: NA0003525
• OSTI ID: 2005239
• Report Number(s): SAND2022--13149C; 710230
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY