Molten Lithium-Brass/Zinc Chloride System as High-Performance and Low-Cost Battery
- Tsinghua Univ., Beijing (China)
- Zhengzhou Univ. (China)
- Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
Batteries with high safety, low cost, and reasonable energy density are essential for grid-scale energy storage and still remain elusive. In this paper, we report a solid electrolyte-based liquid lithium-brass/zinc chloride (SELL-brass/ZnCl2) battery using garnet-type lithium-ion solid electrolyte, lithium anode, and brass/ZnCl2 cathode. The chemistry of the cell reaction and the ability of being assembled in discharged state ensures a high safety. The use of low-cost ZnCl2 cathode can realize a low cell material cost of $16 kWh–1. The adoption of lithium anode guarantees a high theoretical energy density of 750 Wh kg–1 and 2,250 Wh L–1. Moreover, by using brass powder as a Zn source in the cathode, the Zn particle growth issue is successfully solved, and a good cycling stability of the battery can be obtained. As full cell performance and scalability are also verified, our SELL-brass/ZnCl2 battery shows a high potential for practical use in grid energy storage.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); China Postdoctoral Science Foundation
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1768892
- Journal Information:
- Matter (Online), Journal Name: Matter (Online) Journal Issue: 5 Vol. 3; ISSN 2590-2385
- Publisher:
- Cell Press/ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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