Aprotic and Protic Ionic Liquids Combined with Olive Pits Derived Hard Carbon for Potassium-Ion Batteries

Arnaiz, María; Bothe, Annika; Dsoke, Sonia; Balducci, Andrea; Ajuria, Jon

doi:10.1149/2.1041914jes

Cited by 22 publications

(13 citation statements)

References 38 publications

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“…In addition, 0.5 m KTFSI/Pyr 14 TFSI was also compared with an protic ionic liquid, 0.5 m KTFSI/1‐butylpyrrolidinium bis(trifluoromethanesulfonyl)imide (Pyr H4 TFSI) when applied on olive pits derived hard carbon anodes in PIBs. [ 117 ] In spite of the similar conductivities and viscosities of these two ionic liquid electrolytes, a reversible K + insertion/deinsertion behavior is only demonstrated for Pyr 14 TFSI. By contrast, K + ions cannot be inserted and deinserted in hard carbon with Pyr H4 TFSI electrolyte due to the decomposition of Pyr H4 + cations, which leads to an unstable interphase.…”

Section: Electrolytes In Pibsmentioning

confidence: 99%

Electrolytes and Interphases in Potassium Ion Batteries

et al. 2021

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Potassium ion batteries (PIBs) are recognized as one promising candidate for future energy storage devices due to their merits of cost‐effectiveness, high‐voltage, and high‐power operation. Many efforts have been devoted to the development of electrode materials and the progress has been well summarized in recent review papers. However, in addition to electrode materials, electrolytes also play a key role in determining the cell performance. Here, the research progress of electrolytes in PIBs is summarized, including organic liquid electrolytes, ionic liquid electrolytes, solid‐state electrolytes and aqueous electrolytes, and the engineering of the electrode/electrolyte interfaces is also thoroughly discussed. This Progress Report provides a comprehensive guidance on the design of electrolyte systems for development of high performance PIBs.

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Section: Electrolytes In Pibsmentioning

confidence: 99%

Electrolytes and Interphases in Potassium Ion Batteries

et al. 2021

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“…Using the same electrolyte, Masese et al. assembled a cell and evaluated the cyclic performance and rate capability of honeycomb‐structured layered K 2 Ni 2 TeO 6 and P2‐type K 2/3 Ni 1/3 Co 1/3 Te 1/3 O 2 [90] . The layered cathode materials in IL exhibited a stable charge‐discharge cycles even up to a high potential of 4 V vs .…”

Section: Ionic Liquid (Il) Electrolytes For Pibsmentioning

confidence: 99%

Recent Progress in Electrolyte Development and Design Strategies for Next‐Generation Potassium‐Ion Batteries

Verma

Didwal

Hwang

et al. 2021

Batteries & Supercaps

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Rechargeable lithium‐ion batteries (LIBs) have attained tremendous success and are extensively used in a wide range of fields. However, due to the scarcity and uneven geographical distribution of Li resources, its price is steadily increasing, which may limit its sustainable application in the near future. Potassium‐ion batteries (PIBs) are promising alternatives to LIBs owing to the earth abundance, low cost, and eco‐friendliness of potassium, and high energy density of PIBs. Although the field of PIBs has seen significant progress in the recent years, some challenges remain that limit their application, such as the severe side reactions between the electrolyte and electrodes, which result in an unstable solid electrolyte interphase, and thus, a low coulombic efficiency. Hence, designing suitable electrolytes is necessary for the development of PIBs. This review summarises the current developments in PIB electrolytes and comprehensively discusses electrolyte design strategies for four major classes of electrolytes, namely non‐aqueous, aqueous, ionic liquid, and solid‐state electrolytes. In addition, the effects of the properties of each class of electrolyte are discussed in detail. Furthermore, ionic liquid electrolytes, an emerging class of electrolytes, are discussed in detail with respect to PIBs. Finally, several critical issues, challenges, and prospects of PIB electrolytes are discussed, and an outlook for the future research direction of PIBs is presented.

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“…The physicochemical properties of the ionic liquid reported were comparable to the Na and Li ion technology. [203] Dias et al, carried out the molecular dynamics simulations of 1-ethyl-3-methylimidazolium tetracyanoborate ([EMIM] + [B(CN) 4 ] − ) ionic liquid to find out the influence of Na + /K + [B(CN) 4 ] − salts and poly(ethylene oxide) on transportation mechanisms. This study revealed that this ionic liquid mixture is a promising electrolyte for both SIB and KIB technologies.…”

Section: Ionic Electrolytesmentioning

confidence: 99%

“…Ajuria et al reported the performances of KIBs in aprotic ionic liquid (1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethanesulfonyl)imide [Pyr 14 TFSI]) and the protic ionic liquid (1‐butylpyrrolidinium bis(trifluoromethanesulfonyl)imide [Pyr H4 TFSI]), where hard carbon as used as electrode material. The physicochemical properties of the ionic liquid reported were comparable to the Na and Li ion technology . Dias et al, carried out the molecular dynamics simulations of 1‐ethyl‐3‐methylimidazolium tetracyanoborate ([EMIM] + [B(CN) 4 ] − ) ionic liquid to find out the influence of Na + /K + [B(CN) 4 ] − salts and poly(ethylene oxide) on transportation mechanisms.…”

Section: Different Electrolytesmentioning

confidence: 99%

Advancements and Challenges in Potassium Ion Batteries: A Comprehensive Review

Rajagopalan

Tang

et al. 2020

Adv Funct Materials

660

401

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Demand for energy in day to day life is increasing exponentially. However, existing energy storage technologies like lithium ion batteries cannot stand alone to fulfill future needs. In this regard, potassium ion batteries (KIBs) that utilize K ions in their charge storage mechanism have attracted considerable attention due to their unique properties and are therefore established as one of the future battery systems of interest among the scientific community. Nevertheless, the development and identification of appropriate electrode materials is very essential for practical applications. This review features the current development in KIBs electrode and electrolyte materials, the present challenges facing this technology (in the commercial aspect), and future aspects to develop fully functional KIBs. The potassium storage mechanisms, evolution of the KIBs, and the advantages and disadvantages of each category of materials are included. Additionally, various approaches to enhance the electrochemical performances of KIBs are also discussed. This review is not only an amalgamation of different viewpoints in literature, but also contains concise perspectives and strategies. Moreover, the potential emergence of a novel class of K‐based dual ion batteries is also analyzed for the first time.

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Aprotic and Protic Ionic Liquids Combined with Olive Pits Derived Hard Carbon for Potassium-Ion Batteries

Cited by 22 publications

References 38 publications

Electrolytes and Interphases in Potassium Ion Batteries

Electrolytes and Interphases in Potassium Ion Batteries

Recent Progress in Electrolyte Development and Design Strategies for Next‐Generation Potassium‐Ion Batteries

Advancements and Challenges in Potassium Ion Batteries: A Comprehensive Review

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