A novel rechargeable potassium–sulfur battery based on liquid alloy anode

Zhang, Youqiang; Lou, Jin; Shuai, Yi; Chen, Kanghua; He, Xuan; Wang, Yu; Li, Na; Zhang, Zeping; Gan, Fuxing

doi:10.1016/j.matlet.2019.01.108

Cited by 20 publications

(14 citation statements)

References 12 publications

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“…However, perhaps the most fascinating property of K is its formation of a eutectic system with metallic Na at room temperature, with K–Na liquid alloys formed over a wide compositional range of ≈ 42 to 92 wt% K. [ 270–272 ] In addition to the benefit of dendrite‐free plating, K–Na liquid alloys exhibit strong surface tension, allowing for high permeability throughout porous carbon current collectors, but are unable to wet or penetrate either glass fiber or polypropylene‐based separators (Figure 24f–h). Most importantly, these K–Na liquid anodes are compatible with carbonate solvents and well‐suited for cycling with S‐based cathodes like S‐PAN.…”

Section: Prospects and Future Outlook: Sodium–sulfur Batteries And Bementioning

confidence: 99%

“…Most importantly, these K–Na liquid anodes are compatible with carbonate solvents and well‐suited for cycling with S‐based cathodes like S‐PAN. [ 272 ] With a KPF 6 electrolyte in EC/DMC/EMC solvent cycled between 0.5 and 3.0 V versus K/K + , S‐PAN cathodes maintained higher capacity after 100 cycles with the K–Na anode (490 mAh g −1 ), versus a pure‐K cell with only 140 mAh g −1 retained.…”

Section: Prospects and Future Outlook: Sodium–sulfur Batteries And Bementioning

confidence: 99%

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Room‐Temperature Sodium–Sulfur Batteries and Beyond: Realizing Practical High Energy Systems through Anode, Cathode, and Electrolyte Engineering

Eng

Kumar

Zhang

et al. 2021

Advanced Energy Materials

134

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The increasing energy demands of society today have led to the pursuit of alternative energy storage systems that can fulfil rigorous requirements like cost‐effectiveness and high storage capacities. Based fundamentally on earth‐abundant sodium and sulfur, room‐temperature sodium–sulfur batteries are a promising solution in applications where existing lithium‐ion technology remains less economically viable, particularly in large‐scale stationary systems such as grid‐level storage. Here, the key challenges in the field are first highlighted, followed by comprehensive analyses of accessible strategies to overcome them, starting from engineering of the anode–electrolyte interface in both liquid and solid electrolytes. Recently reported polymer and solid‐state electrolytes are also surveyed. Thereafter, the core principles guiding use‐inspired design of cathode architectures, covering the spectrum of elemental sulfur and polysulfide cathodes, to emerging host structures, and covalent composites are focused upon. Future prospects are explored, with insights into other alkali‐metal systems beyond sodium–sulfur batteries, such as the potassium–sulfur battery. Finally a conclusion is provided by outlining the research directions necessary to attain high energy sodium–sulfur devices, and potential solutions to issues concerning large‐scale production, so as to ultimately realize widespread deployment of practical energy storage systems.

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Section: Prospects and Future Outlook: Sodium–sulfur Batteries And Bementioning

confidence: 99%

Section: Prospects and Future Outlook: Sodium–sulfur Batteries And Bementioning

confidence: 99%

Room‐Temperature Sodium–Sulfur Batteries and Beyond: Realizing Practical High Energy Systems through Anode, Cathode, and Electrolyte Engineering

Eng

Kumar

Zhang

et al. 2021

Advanced Energy Materials

134

View full text Add to dashboard Cite

show abstract

“…Notably, owing to the liquid property of the Na/K alloy, Na/K alloy as the anode and SPAN as the cathode were assembled and investigated as the K–S battery. [ 74 ] Liquid Na/K can eliminate the K dendrites for lacking the growth sites. Therefore, the Na/K‐SPAN cell delivered a high initial capacity of approximately 513 mA h g −1 and better cycling stability of approximately 490 mA h g −1 after 100 cycles compared with that of the K‐SPAN cell, which only obtained a capacity of approximately 140 mA h g −1 after 100 cycles.…”

Section: K–s Batteriesmentioning

confidence: 99%

Advanced Post‐Potassium‐Ion Batteries as Emerging Potassium‐Based Alternatives for Energy Storage

Yao

Zhu

2020

Adv Funct Materials

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Potassium-based batteries are considered attractive alternatives for lithium ion batteries, particularly for large-scale energy storage, owing to their economic value and abundance. There have been significant achievements in the extensive investigations of potassium-ion batteries (PIBs). However, post-potassium-ion batteries (post-PIBs), including potassium-sulfur (K-S), potassium-selenium (K-Se), all-solid-state potassium-ion batteries (ASSPIBs), and aqueous potassium-ion batteries (APIBs) along with their respective advantages such as higher energy density, better safety, lower costs, and higher power density, are still in the initial stages of research and require further attention. Therefore, this review summarizes the recent progress, current challenges, and advancements in post-PIBs such as K-S/ Se batteries and ASSPIBs. Additionally, the challenges and solutions of using K metal in such systems are discussed. Thereafter, smart designs for electrodes and electrolytes, along with rational constructions for obtaining desirable APIBs are evaluated. Finally, the development trends, challenges, and prospects are estimated for advanced post-PIBs. This review provides instructive guidelines for research and development of promising potassiumbased systems, in particular, further application of post-PIBs.

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“…PAN/S can also be used as a sulfur cathode for K-S batteries. [154][155][156] Owing to their compositional and structural merits, K-S batteries using the PAN/S cathode displayed remarkable electrochemical performance. Wu et al reported a pyrolyzed PAN/S nanocomposite as a cathode material for RT K-S batteries.…”

Section: Sulfur Cathodes For K-s Batteriesmentioning

confidence: 99%

“…6 in EC/DMC/ethyl methyl carbonate (EMC) (v:v:v = 4:3:2) 513 mAh g −1 at 35 mA g −1490 mAh g −1 after 100 cycles at 35 mA g −1[156] …”

mentioning

confidence: 99%

Recent Advances in Emerging Non‐Lithium Metal–Sulfur Batteries: A Review

et al. 2021

Advanced Energy Materials

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A novel rechargeable potassium–sulfur battery based on liquid alloy anode

Cited by 20 publications

References 12 publications

Room‐Temperature Sodium–Sulfur Batteries and Beyond: Realizing Practical High Energy Systems through Anode, Cathode, and Electrolyte Engineering

Room‐Temperature Sodium–Sulfur Batteries and Beyond: Realizing Practical High Energy Systems through Anode, Cathode, and Electrolyte Engineering

Advanced Post‐Potassium‐Ion Batteries as Emerging Potassium‐Based Alternatives for Energy Storage

Recent Advances in Emerging Non‐Lithium Metal–Sulfur Batteries: A Review

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