A sodium liquid metal battery based on the multi-cationic electrolyte for grid energy storage

Zhou, Hao; Haomiao, L; Gong, Qing; Yan, Shuai; Zhou, Xianbo; Liang, Shengzhi; Ding, Wenjin; Jiang, Kai; Wang, Kangli

doi:10.1016/j.ensm.2022.05.032

Cited by 53 publications

(33 citation statements)

References 38 publications

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“…After 400 cycles, no significant change was observed in the interfacial resistance, which meant no dendrite formation. Ruiz-martínez et al designed a liquid-amino electrolyte with diverse dissolved sodium salts [92] . This electrolyte had excellent properties of low flammability and high electrical conductivity.…”

Section: Novel Electrolytesmentioning

confidence: 99%

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Interface chemistry for sodium metal anodes/batteries: a review

Li¹,

Lou²,

Peng³

et al. 2022

Chem Synth

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Sodium metal batteries (SMBs), benefiting from their low cost and high energy densities, have drawn considerable interest as large-scale energy storage devices. However, uncontrollable dendritic formation of sodium metal anodes (SMAs) caused by inhomogeneous deposition of Na+ severely decreases the Coulombic efficiency, leads to short cycling life, and poses potential safety hazards, dragging SMBs out of practical applications. Electrolytes are attracting massive attention for not only providing ion transport channels but also exhibiting vital effects on interfacial compatibility and dendrite growth. In fact, the as-formed solid electrolyte interphase (SEI) has a great influence on the deposition and stripping process of SMAs. Moreover, Na plating process is accompanied by the generation of SEI, in which the electrolyte plays a vital role. Nevertheless, until now, the interaction among electrolyte-SEI-sodium dendrite has rarely been summarized. Herein, a fundamental understanding of sodium dendrite is concluded and the influence of the electrolyte and interface on Na+ deposition is emphasized. Furthermore, the outlook for constructing dendrite-inhibited SMAs is suggested.

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Section: Novel Electrolytesmentioning

confidence: 99%

Section: Novel Electrolytesmentioning

confidence: 99%

Interface chemistry for sodium metal anodes/batteries: a review

Li¹,

Lou²,

Peng³

et al. 2022

Chem Synth

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“…In the discharge process, liquid metal A is oxidized to A n + , which is subsequently transferred to the positive electrode through the molten salt electrolyte and then alloys with liquid metal B. Inversely, A (in B) is oxidized to A n + , and the A n + is reduced back to A at the negative electrode in the charging process. Because of the low-cost materials and the amorphous liquidity of electrodes and electrolytes, LMBs have the inherent advantage of low cost, simple fabrication, and unprecedented cycle life. ,, In recent years, researchers have reported extensively on liquid metal battery material systems, such as lithium-based LMBs, sodium-based LMBs, and calcium-based LMBs, and have achieved fruitful results. − Among them, lithium LMBs have received much attention due to their excellent electrochemical performance. Wang et al first proposed the Sb-Pb alloy as the positive electrode for LMB; the reported Li||Sb-Pb system operated at 450 °C, exhibiting excellent cyclic performance (a capacity retention of 85% after 1800 h cycling) .…”

Section: Introductionmentioning

confidence: 99%

In Situ Transition Layer Design Based on Ti Additive Enabling High-Performance Liquid Metal Batteries

Yan

et al. 2023

ACS Appl. Mater. Interfaces

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Liquid metal batteries (LMBs), with the merits of long lifespan and low cost, are deemed as one of the most promising energy storage technologies for large-scale energy storage applications due to the use of liquid metal electrodes and molten salt electrolytes. However, the consequent problem is that the poor wettability between graphite-based collectors and the liquid metal/alloy electrodes leads to large contact resistance, which limits the efficiency and stability of the battery. In this work, a transition layer in situ formed on a graphite-based positive electrode current collector by Ti additive is designed for the first time, which increases the wettability between the positive alloy and the current collector and improves the voltage efficiency of the Li||Sb-Sn cell from 85.6 to 88.4%. These results provide new ideas for the design of high-efficiency LMBs.

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“…9,10 Strategies such as using an articial solid electrolyte interface (SEI) 11 and structured anodes, 12 electrolyte engineering, and separator modication 13 have been adopted to solve these issues. 14,15 Stable SEI layers are benecial for inhibiting electrolyte decomposition and regulating lithium-ion ux. 16,17 Researchers have conducted numerous studies on the construction of interfacial layers with high mechanical strength and low diffusion barriers.…”

Section: Introductionmentioning

confidence: 99%

A CF₄ plasma functionalized polypropylene separator for dendrite-free lithium metal anodes

Cao

Chen

et al. 2023

J. Mater. Chem. A

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A sodium liquid metal battery based on the multi-cationic electrolyte for grid energy storage

Cited by 53 publications

References 38 publications

Interface chemistry for sodium metal anodes/batteries: a review

Interface chemistry for sodium metal anodes/batteries: a review

In Situ Transition Layer Design Based on Ti Additive Enabling High-Performance Liquid Metal Batteries

A CF₄ plasma functionalized polypropylene separator for dendrite-free lithium metal anodes

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A sodium liquid metal battery based on the multi-cationic electrolyte for grid energy storage

Cited by 53 publications

References 38 publications

Interface chemistry for sodium metal anodes/batteries: a review

Interface chemistry for sodium metal anodes/batteries: a review

In Situ Transition Layer Design Based on Ti Additive Enabling High-Performance Liquid Metal Batteries

A CF4 plasma functionalized polypropylene separator for dendrite-free lithium metal anodes

Contact Info

Product

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About

A CF₄ plasma functionalized polypropylene separator for dendrite-free lithium metal anodes