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Title: Thermally assisted alkali/zinc ion hybrid battery for high roundtrip efficiency
Authors: Liu, Yezhou
Gao, Caitian
Yun, Jeonghun
Kim, Yeongae
Kim, Moobum
Li, Jia
Li, Xiaoya
Lee, Seok Woo
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Liu, Y., Gao, C., Yun, J., Kim, Y., Kim, M., Li, J., Li, X. & Lee, S. W. (2022). Thermally assisted alkali/zinc ion hybrid battery for high roundtrip efficiency. ACS Applied Energy Materials, 5(3), 2780-2785.
Project: MOE2019-T2-1-122
Journal: ACS Applied Energy Materials
Abstract: The growth of renewable energy generation has necessitated electric energy storage (EES) systems. Batteries are the most promising small-scale EES system, given their portability, quick response time, and high compatibility with electrical devices. We present a thermally assisted K/Zn ion hybrid battery for high roundtrip efficiency. The battery contains a copper hexacyanoferrate (CuHCFe) cathode and a zinc metal anode with a discharging voltage of 1.75 V in a K/Zn ion hybrid aqueous electrolyte. The battery's roundtrip efficiency improved by 2.1-4.5% when cycled between 10 and 30 °C. Its discharging voltage and temperature coefficient improved dramatically when the K ion was replaced with a Rb ion. The proposed thermally assisted battery cycle can be used with various conventional batteries to reduce EES energy loss during charge/discharge cycles.
ISSN: 2574-0962
DOI: 10.1021/acsaem.1c03368
Rights: © 2022 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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