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A Ternary Hybrid-Cation Room-Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study.
. 2020 Jun; 32(22):e2000316.

Abstract

The dendrite-free sodium-potassium (Na-K) liquid alloy composed of two alkali metals is one of the ideal alternatives for Li metal as an anode material while maintaining large capacity, low potential, and high abundance. However, Na- or K-ion batteries have limited cathode materials that can deliver stably large capacity. Combining advantages of both, a hybrid-cation liquid metal battery is designed for a Li-ion-insertion-based cathode to deliver stable high capacity using a Na-K liquid anode to avoid dendrites. The mechanical property of the Na-K alloy is confirmed by simulation and experimental characterization, which leads to stable cycling performance. The charge carrier selection principle in this ternary hybrid-cation system is investigated, showing consistency with the proposed interfacial layer formation and ion distribution mechanism for the electrochemical process as well as the good stability. With Li ions contributing stable cycling as the cathode charge carrier, the K ion working as charge carrier on the anode, and Na as the medium to liquefy K metal, such a ternary hybrid battery system not only inherits the rich battery chemistry of Li-insertion cathodes but also broadens the understanding of alkali metal alloys and hybrid-ion battery chemistry.

Authors+Show Affiliations

Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA.Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA.Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA.Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA.Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32311170

Citation

Guo, Xuelin, et al. "A Ternary Hybrid-Cation Room-Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study." Advanced Materials (Deerfield Beach, Fla.), vol. 32, no. 22, 2020, pp. e2000316.
Guo X, Ding Y, Gao H, et al. A Ternary Hybrid-Cation Room-Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study. Adv Mater Weinheim. 2020;32(22):e2000316.
Guo, X., Ding, Y., Gao, H., Goodenough, J. B., & Yu, G. (2020). A Ternary Hybrid-Cation Room-Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study. Advanced Materials (Deerfield Beach, Fla.), 32(22), e2000316. https://doi.org/10.1002/adma.202000316
Guo X, et al. A Ternary Hybrid-Cation Room-Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study. Adv Mater Weinheim. 2020;32(22):e2000316. PubMed PMID: 32311170.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A Ternary Hybrid-Cation Room-Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study. AU - Guo,Xuelin, AU - Ding,Yu, AU - Gao,Hongcai, AU - Goodenough,John B, AU - Yu,Guihua, Y1 - 2020/04/20/ PY - 2020/01/14/received PY - 2020/03/28/revised PY - 2020/03/30/accepted PY - 2020/4/21/pubmed PY - 2020/4/21/medline PY - 2020/4/21/entrez KW - K-ion batteries KW - Li-ion batteries KW - hybrid-cation batteries KW - liquid metals SP - e2000316 EP - e2000316 JF - Advanced materials (Deerfield Beach, Fla.) JO - Adv. Mater. Weinheim VL - 32 IS - 22 N2 - The dendrite-free sodium-potassium (Na-K) liquid alloy composed of two alkali metals is one of the ideal alternatives for Li metal as an anode material while maintaining large capacity, low potential, and high abundance. However, Na- or K-ion batteries have limited cathode materials that can deliver stably large capacity. Combining advantages of both, a hybrid-cation liquid metal battery is designed for a Li-ion-insertion-based cathode to deliver stable high capacity using a Na-K liquid anode to avoid dendrites. The mechanical property of the Na-K alloy is confirmed by simulation and experimental characterization, which leads to stable cycling performance. The charge carrier selection principle in this ternary hybrid-cation system is investigated, showing consistency with the proposed interfacial layer formation and ion distribution mechanism for the electrochemical process as well as the good stability. With Li ions contributing stable cycling as the cathode charge carrier, the K ion working as charge carrier on the anode, and Na as the medium to liquefy K metal, such a ternary hybrid battery system not only inherits the rich battery chemistry of Li-insertion cathodes but also broadens the understanding of alkali metal alloys and hybrid-ion battery chemistry. SN - 1521-4095 UR - https://www.unboundmedicine.com/medline/citation/32311170/A_Ternary_Hybrid_Cation_Room_Temperature_Liquid_Metal_Battery_and_Interfacial_Selection_Mechanism_Study_ L2 - https://doi.org/10.1002/adma.202000316 DB - PRIME DP - Unbound Medicine ER -
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