Electrochemical performance and application prospect analysis of Li|| Sb-Bi-Sn liquid metal batteries

Article Chemistry, Multidisciplinary

Low-Temperature and High-Energy-Density Li-Based Liquid Metal Batteries Based on LiCl-KCl Molten Salt Electrolyte

Kaixuan Cui et al.

Summary: A new LiCl-KCl electrolyte and Sb-Bi-Sn (Pb) positive electrode is reported to lower the operating temperature and achieve high energy density of Li-based liquid metal batteries (LMBs).

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2022)

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Article Chemistry, Physical

Feasibility Research of SS304 Serving as the Positive Current Collector of LillSb-Sn Liquid Metal Batteries

Kaixuan Cui et al.

Summary: This study comprehensively investigated the corrosion behavior of SS304 in the Sb-Sn alloy under static conditions and cell-cycling conditions, clarifying the corrosion mechanism and battery reaction process through electrochemical measurements and ex situ analyses. It was found that Fe and Ni of SS304 easily dissolve in the liquid Sb-Sn alloy, leading to the formation of Fe-Ni-Sb-Sn corrosion products, which in turn cause abnormal discharge voltage plateau and capacity fading in the positive electrode. The presence of Sn in the positive electrode promotes the diffusion of dissolved elements and accelerates corrosion of the current collector. The study concluded that Fe- and Ni-based alloys like stainless steel are not suitable as positive current collectors in LiIISb-Sn liquid metal batteries, suggesting the need for a conductive and corrosion-resistant protective coating or optimization of the positive electrode composition.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

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Review Chemistry, Multidisciplinary

Design Principles and Applications of Next-Generation High-Energy-Density Batteries Based on Liquid Metals

Xuelin Guo et al.

Summary: The paper discusses the design principles of liquid metal-based batteries, highlighting their advantages in improving battery energy and addressing dendrite issues, as well as potential high-energy-density battery designs. It also analyzes the currently reported designs, focusing on the working mechanism, effectiveness evaluation, and novel applications. Additionally, an overview of the current state and future prospects of liquid metal battery developments is provided as reference for further research explorations.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Stable Positive Current Collectors for LillSb-Sn Liquid Metal Batteries

Kaixuan Cui et al.

Summary: Through systematic investigation, this study found that W is a relatively stable material as the positive current collector (PCC) of LillSb-Sn liquid metal batteries, which is significant for improving the performance of the battery.

ACS APPLIED ENERGY MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Liquid metal batteries for future energy storage

Shilin Zhang et al.

Summary: The search for alternatives to traditional Li-ion batteries has led to the development of rechargeable liquid metal batteries, which operate at room or intermediate temperatures to address challenges related to high temperature operation, corrosive reactions, and hermetic sealing. These new paradigms aim to overcome drawbacks of conventional liquid metal batteries and enable both conventional and new functionalities by applying alternative electrodes, manipulating electrolyte design concepts, and engineering electrode-electrolyte interfaces.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical