Syntheses of novel delocalized cations and fluorinated anions, new fluorinated solvents and additives for lithium ion batteries

Böttcher, Tobias; Duda, Blazej; Kalinovich, Nataliya; Kazakova, Olesya; Ponomarenko, Maxim V.; Vlasov, Katja; Winter, Martin; Röschenthaler, Gerd‐Volker

doi:10.1016/j.progsolidstchem.2014.04.013

Cited by 42 publications

(26 citation statements)

References 63 publications

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“…6). The early introduced and traditional lithium salts lithium perchlorate (LiClO 4 ), 36 10,120 The LiClO 4 has good conductivity and electrochemical stability. Compared with LiBF 4 , LiClO 4 has strong oxidation ability, resulting in the unsafe use in LIBs.…”

Section: Salt-in-polymermentioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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This article reviews the PEO-based electrolytes for lithium-ion batteries.Poly(ethylene oxide) (PEO) based materials are widely considered as promising candidates of polymer hosts in solid-state electrolytes for high energy density secondary lithium batteries. They have several specific advantages such as high safety, easy fabrication, low cost, high energy density, good electrochemical stability, and excellent compatibility with lithium salt. However, the typical linear PEO does not reach the production requirement because its insufficient ionic conductivity due to the high crystallinity of the ethylene oxide (EO) chains, which can restrain the ionic transition due to the stiff structure especially at low temperature. The scientists have explored different approaches to reduce the crystallinity hence to improve the ionic conductivity of PEO-based electrolytes, including: blending, modifying and making PEO derivatives etc. This review is focused on surveying the recent developments and issues about PEO-based electrolytes for lithium-ion batteries.

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Section: Salt-in-polymermentioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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“…[14][15][16][21][22][23][24] A large number of new anions with simple linear or more complex cyclic structures have been synthesized in the last three decades, and the anion chemistry of the salt has been shown to have a large impact on many properties of interest. These components together provide a medium to transfer charge between the electrodes via the Li + cations and the counter-anions.…”

Section: Li-salts In Aprotic Electrolytesmentioning

confidence: 99%

Lithium salts for advanced lithium batteries: Li–metal, Li–O₂, and Li–S

Younesi

Veith

Johansson

et al. 2015

Energy Environ. Sci.

508

365

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Presently lithium hexafluorophosphate (LiPF 6 ) is the dominant Li-salt used in commercial rechargeable lithium-ion batteries (LIBs) based on a graphite anode and a 3-4 V cathode material. While LiPF 6 is not the ideal Li-salt for every important electrolyte property, it has a uniquely suitable combination of properties (temperature range, passivation, conductivity, etc.) rendering it the overall best Li-salt for LIBs. However, this may not necessarily be true for other types of Li-based batteries. Indeed, next generation batteries, for example lithium-metal (Limetal), lithium-oxygen (Li-O 2 ), and lithium-sulfur (Li-S), require a re-evaluation of Li-salts due to the different electrochemical and chemical reactions and conditions within such cells. This review explores the critical role Li-salts play in ensuring in these batteries viability.

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“…As linear carbonates, ethyl methyl carbonate (EMC), ethyl carbonate (DEC) or methyl carbonate (DMC) are commonly applied, while propylene carbonate (PC) or ethylene carbonate (EC) are used as cyclic carbonates [31][32][33]. Different lithium salts are applicable for conducting salt, e.g., lithium bis(trifluoromethane)sulfonimide (LiTFSI), lithium bis(fluorosulfonyl)imide (LiFSI), lithium bis-(oxalate)borate (LiBOB), lithium difluoro(oxalate)borate (LiDFOB), lithium tetrafluoro borate (LiBF 4 ) and lithium hexafluorophosphate (LiPF 6 ), where the latter is the typically commercially applied conducting salt [87][88][89][90][91][92]. Furthermore, additives (up to 5%, either by v/v or w/w) [93] can be applied to further modify the different electrolyte properties.…”

Section: Lithium Ion Battery Materials and Compositionmentioning

confidence: 99%

Chromatographic Techniques in the Research Area of Lithium Ion Batteries: Current State-of-the-Art

et al. 2019

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Lithium ion batteries (LIBs) are widely used in numerous application areas, including portable consumer electronics, medicine, grid storage, electric vehicles and hybrid electric vehicles. One major challenge during operation and storage is the degradation of the cell constituents, which is called aging. This phenomenon drastically reduces both storage lifetime and cycle lifetime. Due to numerous aging effects, originating from both the individual LIB cell constituents as well as their interactions, a wide variety of instruments and methods are necessary for aging investigations. In particular, chromatographic methods are frequently applied for the analysis of the typically used liquid non-aqueous battery electrolytes based on organic solvents or ionic liquids. Moreover, chromatographic methods have also been recently used to investigate the composition of electrode materials. In this review, we will give an overview of the current state of chromatographic methods in the context of LIB cell research.

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Syntheses of novel delocalized cations and fluorinated anions, new fluorinated solvents and additives for lithium ion batteries

Cited by 42 publications

References 63 publications

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Lithium salts for advanced lithium batteries: Li–metal, Li–O₂, and Li–S

Chromatographic Techniques in the Research Area of Lithium Ion Batteries: Current State-of-the-Art

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Syntheses of novel delocalized cations and fluorinated anions, new fluorinated solvents and additives for lithium ion batteries

Cited by 42 publications

References 63 publications

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Lithium salts for advanced lithium batteries: Li–metal, Li–O2, and Li–S

Chromatographic Techniques in the Research Area of Lithium Ion Batteries: Current State-of-the-Art

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Product

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Lithium salts for advanced lithium batteries: Li–metal, Li–O₂, and Li–S