Alkali and alkaline earth metals in liquid salts for supercapatteries

Guo, Qiang; Fan, Peiying; Zhang, Yuhan; Guan, Li; Wang, Han; Croft, Anna; Chen, George Zheng

doi:10.1039/d3su00197k

Cited by 2 publications

(2 citation statements)

References 167 publications

(260 reference statements)

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“…To date, extensive research efforts have been dedicated to exploring supercapattery configurations using ILs as electrolytes. 96 ILs play a pivotal role as electrolyte materials in EES devices due to their distinct advantages over aqueous and organic electrolytes. Compared to aqueous electrolytes, ILs offer a broad voltage window, enabling higher energy density and enhancing the overall performance of EES devices.…”

Section: Energy Storage In Molten Salt Electrochemical Devices (Batte...mentioning

confidence: 99%

Emerging Molten Salts Based Electrochemical Energy Technologies

YU,

ZHANG,

WANG

et al. 2024

Electrochemistry

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Molten salts of inorganic nature are excellent reaction media for various research and industrial uses. Their applications in energy technologies are also wide, including, but not limited to, thermal, nuclear, and electrochemical processes and their combinations. This review aims to capture and analyze selected innovations and developments in recent past, with a specific focus on electrochemical energy storage (EES) technologies. Additionally, it seeks to clarify some fundamental concepts in EES and address prevalent misconceptions, such as those related to Faradaic capacitive/Nernstian processes, battery-like/capacitive cyclic voltammograms (CVs) and galvanostatic chargedischarge curves (GCDs), as well as the calculation of specific energy. The application of molten salts in an emerging EES technology, known as supercapattery, is also explored in this review. This includes the design principle, fundamental calculations, and recent noteworthy demonstrations. Functioning as a hybrid technology, supercapattery combines the merits of both supercapacitor and battery and potentially outperforms each. Drawing insights from advancements in molten salt batteries and molten salt supercapacitors, this review delves into the prospects of developing a sodium-activated carbon (Na-AC) molten salt supercapattery. Through thermodynamic calculations, a specific energy of 445 W h kg −1 -AM (where AM denotes the total active mass on both electrodes) is projected, which surpasses the specific energy of 250 W h kg −1 -cell achieved by the best commercial lithium-ion battery.

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Section: Energy Storage In Molten Salt Electrochemical Devices (Batte...mentioning

confidence: 99%

Emerging Molten Salts Based Electrochemical Energy Technologies

YU,

ZHANG,

WANG

et al. 2024

Electrochemistry

Self Cite

View full text Add to dashboard Cite

show abstract

“…Alkali metal salt doped ionic liquids, referred to as salt-in-ionic liquids (SiILs) here, have attracted attention as an electrolyte for applications in batteries/energy storage devices [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], owing to the combination of the active Li/Na cations coupled with the highly desirable properties of ionic liquids (ILs). ILs have extremely low vapour pressures, are effectively universal solvents, and are non-flammable making them a much safer alternative to carbonate based solvents typically used in conventional battery electrolytes [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%