Bifunctional separator with a light-weight coating for stable anode-free potassium metal batteries

Wang, Jianyi; Zuo, Yinze; Chen, Menghui; Chen, Kaibin; Lu, Zicong; Si, Liping

doi:10.1016/j.electacta.2022.141211

Cited by 9 publications

(8 citation statements)

References 45 publications

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“…In the first deposition process, K + could be evenly and stably deposited on the Cu foil via ferroelectric spin polarization as well as the porous structure of graphene. [113,114] For AF-KMBs, potassium and K + in the electrolyte could be utilized as the potassium sources. K + could be reversibly removed from the Cu foil and remain stable SEI in the removal process of potassium.…”

Section: Separators Engineeringmentioning

confidence: 99%

Interfacial regulation engineering in anode‐free rechargeable batteries

Hao,

Yan,

et al. 2024

Carbon Neutralization

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Anode‐free rechargeable batteries (AFRBs), equipped with bare collectors at the anode, are potential electrochemical energy storage technology attributed to their simplified cell configuration, high energy density, and cost reduction. Nevertheless, issues including insufficient Coulombic efficiency as well as the formation of the dendrites restrict their practical implementation. In recent years, various strategies have been proposed to overcome the critical issues of AFRBs. Among which, interfacial properties play key roles for achieving high stable AFRBs. In this review, an overview of AFRBs is discussed in the first part. Then, the main strategies based on interfacial regulation engineering toward high‐performance AFRBs are summarized including designing of current collectors, introducing of surface coating layers, modification of electrolytes, separators engineering, cathode materials regulation, and so forth. In addition, some future perspectives for developing AFRBs are proposed. This review will create new avenues on constructing stable AFRBs for advanced energy storage devices.

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Section: Separators Engineeringmentioning

confidence: 99%

Interfacial regulation engineering in anode‐free rechargeable batteries

Hao,

Yan,

et al. 2024

Carbon Neutralization

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“…30 Since then, research interest in PIB areas has developed rapidly, and over 2500 research publications on electrode materials for PIBs have been reported. These publications include studies on cathodes, 31,32 anodes, 33,34 separators 35,36 and electrolytes. 37,38 Anode materials are found to have high theoretical specific capacitance and important roles in PIBs.…”

Section: Ping Humentioning

confidence: 99%

Bimetallic-based composites for potassium-ion storage: challenges and perspectives

Dong

et al. 2023

Inorg. Chem. Front.

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“…[171]. In spite of these achievements of the anode-free system in Li and Na, there are only a few reports about anode-free PMBs [76,172,173].…”

Section: Modification Of Current Collectorsmentioning

confidence: 99%

“…Thus, researchers have modified the surface of the GF separator, exploiting the strategies established in PE or PP separators. For instance, Wang et al coated lithium niobate/ graphene (LiNbO 3 @G) compounds on commercial GF via vacuum filtration [172]. The LiNbO 3 @G layer has a porous structure and a thickness of less than 1 μm with ferroelectricity.…”

Section: Modification Of Current Collectorsmentioning

confidence: 99%

Recent Progress of Potassium Metal Anodes: How to Regulate the Growth of Dendrite

Baek,

Jung,

Jie

et al. 2023

International Journal of Energy Research

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Potassium- (K-) based batteries with K metal anodes have been regarded as a substitute for lithium- (Li-) and sodium- (Na-) based batteries. In this review, motivations for K metal anodes with various advantages over Li and Na metals are presented at the beginning. Nevertheless, the practical applications of K metal anodes are still impeded by various challenges originating from their highly reactive nature. Then, major challenges of K metal are introduced in comparison with those of Li and Na metals, including unstable SEI, dendrite growth, low melting point, and gas generation. These issues become more severe in K metal due to its different physical and chemical properties compared with Li and Na metals. Consequently, this leads to varying electrochemical behaviors. In particular, the mechanism of K dendrite growths is different from that of Li and Na. Subsequently, approaches with an emphasis on the suppression of dendrites are described, falling into two categories: direct and indirect engineering on electrodes. Direct engineering is K metallic electrode designs by utilizing a host framework, alloy electrode, and interface modification. Notably, the most crucial aspect considered in direct engineering is the potassiophilicity of the host and interface, which contributes to the uniform deposition of K. The section on indirect engineering addresses the suppression of dendrite growth through separators and liquid/solid electrolytes. Finally, future perspectives and research directions toward the suppression of K dendrites are provided.

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Bifunctional separator with a light-weight coating for stable anode-free potassium metal batteries

Cited by 9 publications

References 45 publications

Interfacial regulation engineering in anode‐free rechargeable batteries

Interfacial regulation engineering in anode‐free rechargeable batteries

Bimetallic-based composites for potassium-ion storage: challenges and perspectives

Recent Progress of Potassium Metal Anodes: How to Regulate the Growth of Dendrite

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