Ionic Liquid‐Based Membranes as Electrolytes for Advanced Lithium Polymer Batteries

Navarra, Maria Assunta; Manzi, Jessica; Lombardo, Lucia; Panero, S.; Scrosati, B.

doi:10.1002/cssc.201000254

Cited by 67 publications

(32 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[270] Similarly,Y ee tal., [271] Navarra et al, [272] and Hofmann et al [273] reported very promising resultsi nt erms of safety and electrochemical performance for PVdF-HFP-based quaternary electrolyte systems; this also revealed good compatibility with graphite anodes and Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 cathodes. Nevertheless, intrinsic safety issues related to the utilization of volatile and flammable organic solvents might be substantially reduced, but not completely overcome.…”

Section: Alkyl Carbonate/il/solid Polymer Blends (Ole-il-spes)mentioning

confidence: 88%

Safer Electrolytes for Lithium‐Ion Batteries: State of the Art and Perspectives

et al. 2015

View full text Add to dashboard Cite

Lithium-ion batteries are becoming increasingly important for electrifying the modern transportation system and, thus, hold the promise to enable sustainable mobility in the future. However, their large-scale application is hindered by severe safety concerns when the cells are exposed to mechanical, thermal, or electrical abuse conditions. These safety issues are intrinsically related to their superior energy density, combined with the (present) utilization of highly volatile and flammable organic-solvent-based electrolytes. Herein, state-of-the-art electrolyte systems and potential alternatives are briefly surveyed, with a particular focus on their (inherent) safety characteristics. The challenges, which so far prevent the widespread replacement of organic carbonate-based electrolytes with LiPF6 as the conducting salt, are also reviewed herein. Starting from rather "facile" electrolyte modifications by (partially) replacing the organic solvent or lithium salt and/or the addition of functional electrolyte additives, conceptually new electrolyte systems, including ionic liquids, solvent-free, and/or gelled polymer-based electrolytes, as well as solid-state electrolytes, are also considered. Indeed, the opportunities for designing new electrolytes appear to be almost infinite, which certainly complicates strict classification of such systems and a fundamental understanding of their properties. Nevertheless, these innumerable opportunities also provide a great chance of developing highly functionalized, new electrolyte systems, which may overcome the afore-mentioned safety concerns, while also offering enhanced mechanical, thermal, physicochemical, and electrochemical performance.

show abstract

Section: Alkyl Carbonate/il/solid Polymer Blends (Ole-il-spes)mentioning

confidence: 88%

Safer Electrolytes for Lithium‐Ion Batteries: State of the Art and Perspectives

et al. 2015

View full text Add to dashboard Cite

show abstract

“…[18] Ionic liquids( ILs) have been investigatedf or the preparation of electrolytes for Mg batteries because, in addition to having high thermala nd electrochemical stability,t hey exhibit negligible vapour pressure and are non-flammable. [19][20][21] Furthermore, ILs enable the use of oxide-based cathodic materials, which show as uperior specificc apacity and operating voltage with respectt oc onventionalC hevrel-phase materials. [22] However,i t has been reportedt hat Mg electrodes are generally reactive toward imidazolium-based ILs.…”

Section: Introductionmentioning

confidence: 99%

A Key concept in Magnesium Secondary Battery Electrolytes

et al. 2015

View full text Add to dashboard Cite

A critical roadblock toward practical Mg-based energy storage technologies is the lack of reversible electrolytes that are safe and electrochemically stable. Here, we report on high-performance electrolytes based on 1-ethyl-3-methylimidazolium chloride (EMImCl) doped with AlCl3 and highly amorphous δ-MgCl2 . The phase diagram of the electrolytes reveals the presence of four thermal transitions that strongly depend on salt content. High-level density functional theory (DFT)-based electronic structure calculations substantiate the structural and vibrational assignment of the coordination complexes. A 3D chloride-concatenated dynamic network model accounts for the outstanding redox behaviour and the electric and magnetic properties, providing insight into the conduction mechanism of the electrolytes. Mg anode cells assembled using the electrolytes were cyclically discharged at a high rate (35 mA g(-1) ), exhibiting an initial capacity of 80 mA h g(-1) and a steady-state voltage of 2.3 V.

show abstract

“…ILs are generally known to possess undetectable vapour pressure, wide liquid temperature range, high solubility for many organic and inorganic compounds, and low toxicity [1][2][3]. Hence, ILs are applied in many chemical and industrial processes such as CO 2 capture [4][5][6], battery development [7,8], electrochemical applications [9] and biocatalysts [10,11], organic synthesis [12], material synthesis [13], extraction [5], and biomedical applications [5].…”

Section: Introductionmentioning

confidence: 99%