Poly(ionic liquid)s/Electrospun Nanofiber Composite Polymer Electrolytes for High Energy Density and Safe Li Metal Batteries

Wang, Xiaoen; Girard, Gaetan M. A.; Zhu, Haijin; Yunis, Ruhamah; MacFarlane, Douglas R.; Mecerreyes, David; Bhattacharyya, Aninda J.; Howlett, Patrick C.; Forsyth, Maria

doi:10.1021/acsaem.9b00765

Cited by 69 publications

(53 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it is rather difficult to determine the diffusion coefficient due to the rapid relaxation time for FSI − , as also found in another report where polymerized ionic liquids were used as polymer matrices. [ 22 ] Further studies employing molecular dynamic simulations are ongoing to understand further the transport mechanism in ACSLIC.…”

Section: Resultsmentioning

confidence: 99%

Unprecedented Improvement of Single Li‐Ion Conductive Solid Polymer Electrolyte Through Salt Additive

Martínez‐Ibáñez

Sánchez-Díez

Qiao

et al. 2020

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Solid-state lithium metal (Li°) batteries (SSLMBs) are believed to be the most promising technologies to tackle the safety concerns and the insufficient energy density encountered in conventional Li-ion batteries. Solid polymer electrolytes (SPEs) inherently own good processability and flexibility, enabling large-scale preparation of SSLMBs. To minimize the growth of Li° dendrites and cell polarization in SPE-based SSLMBs, an additive-containing single Li-ion conductive SPE is reported. The characterization results show that a small dose of electrolyte additive (2 wt%) substantially increases the ionic conductivity of single Li-ion conductive SPEs as well as the interfacial compatibility between electrode and SPE, allowing the cycling of SPE-based cells with good electrochemical performance. This work may provide a paradigm shift on the design of highly cationic conductive electrolytes, which are essential for developing safe and high-performance rechargeable batteries.wind, solar). [4] The widely used LIBs comprise a graphitized material and a lithium transition metal oxide as the respective negative and positive electrodes, and a carbonate-based liquid solution as electrolyte. [5] On one side, the high volatility and flammability of carbonate solvents causes severe safety issues when LIBs are under abusive conditions, as noted by the increasing incidents of smartphones, EVs, and stationary batteries. [6] On the other side, the pursuit of higher energy density in battery technologies, due to the demanding requirements in newly emerging applications, has spurred considerable interest in replacing carbonaceous materials with higher capacity Li metal (Li°) electrode (e.g., 3860 mAh g -1 (Li°) vs 372 mAh g -1 (graphite)). Yet, the practical implementation of rechargeable Li°-based batteries using liquid electrolytes is handicapped by the notorious Li° dendrite formation, which results in not only low energy efficiency but also possible internal short-circuit and subsequent thermal runaway. [7] To mitigate aforementioned safety concerns and break the ceiling of energy density in LIB technologies, solid polymer electrolyte (SPE)-based solid-state Li° batteries (SSLMBs) have garnered great attention from both academic and industrial sectors. [8] Since the first perceptive proposal on using SPEs as safe electrolytes for rechargeable batteries by Armand and Duclot in 1978, [9] significant progresses and advances have been achieved in the field. [10] SPE-based batteries have been proven to be technologically feasible by the expanding applications of lithium metal polymer batteries developed by Bolloré group in EV cars and buses, as well as other energy storage scenarios. [11] However, the commonly employed conducting salt lithium bis(trifluoromethanesulfonyl)imide {Li[N(SO 2 CF 3 ) 2 ], LiTFSI} possesses a high anionic mobility (i.e., low Li-ion transference number, <0.3 [12] ) in poly(ethylene oxide) (PEO), engendering pronounced cell polarization and rapid Li° dendrite growth upon cycling of SSLMBs, particularly when...

show abstract

Section: Resultsmentioning

confidence: 99%

Unprecedented Improvement of Single Li‐Ion Conductive Solid Polymer Electrolyte Through Salt Additive

Martínez‐Ibáñez

Sánchez-Díez

Qiao

et al. 2020

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Ionic Polymer‐based Solid‐state Electrolytesmentioning

confidence: 99%

“…e) Digital picture (left) and cross‐sectional SEM image (right) of composite electrolytes consisting high Li concentration [C 3 mpyr][FSI] and PVDF nanofibers. Adapted with permission . Copyright 2019, American Chemical Society.…”

Section: Ionic Polymer‐based Solid‐state Electrolytesmentioning

confidence: 99%

“…The salt concertation of 1.6, 3.1, and 4.7 mol kg −1 represents the mole number of salt in 1 kg of “solvent” (ionic liquid plus PDADMA TFSI) in each electrolyte. Reproduced with permission . Copyright 2019, American Chemical Society.…”

Section: Ionic Polymer‐based Solid‐state Electrolytesmentioning

confidence: 99%

Section: Progress and Challenges For Prototyping High Energy Sslbsmentioning

confidence: 99%

See 2 more Smart Citations

Toward High‐Energy‐Density Lithium Metal Batteries: Opportunities and Challenges for Solid Organic Electrolytes

et al. 2020

Self Cite

View full text Add to dashboard Cite

The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201905219.With increasing demands for safe, high capacity energy storage to support personal electronics, newer devices such as unmanned aerial vehicles, as well as the commercialization of electric vehicles, current energy storage technologies are facing increased challenges. Although alternative batteries have been intensively investigated, lithium (Li) batteries are still recognized as the preferred energy storage solution for the consumer electronics markets and next generation automobiles. However, the commercialized Li batteries still have disadvantages, such as low capacities, potential safety issues, and unfavorable cycling life. Therefore, the design and development of electromaterials toward high-energy-density, long-life-span Li batteries with improved safety is a focus for researchers in the field of energy materials. Herein, recent advances in the development of novel organic electrolytes are summarized toward solid-state Li batteries with higher energy density and improved safety. On the basis of new insights into ionic conduction and design principles of organic-based solid-state electrolytes, specific strategies toward developing these electrolytes for Li metal anodes, high-energy-density cathode materials (e.g., high voltage materials), as well as the optimization of cathode formulations are outlined. Finally, prospects for next generation solid-state electrolytes are also proposed.

show abstract

Unraveling the Synergistic Coupling Mechanism of Li⁺ Transport in an “Ionogel‐in‐Ceramic” Hybrid Solid Electrolyte for Rechargeable Lithium Metal Battery

Song

Wang

Chen

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Understanding the ionic transport behaviors in hybrid solid electrolytes (HSEs) is critically important for the practical realization of rechargeable Li‐metal batteries (LMBs) with high safety. Herein, it is reported a new solid “Ionogel‐in‐Ceramic” electrolyte by using the Li1.3Al0.3Ti1.7(PO4)3 (LATP) ceramic particles as a framework and “Poly(ionic liquid)s‐in‐Salt” (“PolyIL‐in‐Salt”) ionogel as an ionic bridge via a simple pressing process. The “PolyIL‐in‐Salt” ionogel precursor is designed to improve the chemical compatibility at solid–solid interfaces. Molecular dynamics simulations reveal the roles of salt concentrations on the distribution of co‐coordination of “PolyIL‐in‐Salt” ionogel. Moreover, the “PolyIL‐in‐Salt” ionogel containing co‐coordination not only inhibits the parasitic reactions between LATP and Li anode but also provides efficient Li+ conducting pathways. Benefiting from the designed structure, the “Ionogel‐in‐Ceramic” HSE exhibits an excellent ionic conductivity of 0.17 mS cm−1 at 50 °C. Meanwhile, the as‐formed solid electrolyte enables a long cycle of over 3500 h in Li/Li symmetric cell. Further, all‐solid‐state lithium metal batteries fabricated on LiFePO4 and high voltage LiCoO2 cathodes deliver 160.0 mAh g−1, 125.0 mAh g−1, respectively. This study sheds light on the rational design of solid‐state electrolytes with efficient interparticle Li+ conduction, compatible, stable, compact, and durable electrode–electrolyte interfaces.

show abstract

Poly(ionic liquid)s/Electrospun Nanofiber Composite Polymer Electrolytes for High Energy Density and Safe Li Metal Batteries

Cited by 69 publications

References 41 publications

Unprecedented Improvement of Single Li‐Ion Conductive Solid Polymer Electrolyte Through Salt Additive

Unprecedented Improvement of Single Li‐Ion Conductive Solid Polymer Electrolyte Through Salt Additive

Toward High‐Energy‐Density Lithium Metal Batteries: Opportunities and Challenges for Solid Organic Electrolytes

Unraveling the Synergistic Coupling Mechanism of Li⁺ Transport in an “Ionogel‐in‐Ceramic” Hybrid Solid Electrolyte for Rechargeable Lithium Metal Battery

Contact Info

Product

Resources

About

Poly(ionic liquid)s/Electrospun Nanofiber Composite Polymer Electrolytes for High Energy Density and Safe Li Metal Batteries

Cited by 69 publications

References 41 publications

Unprecedented Improvement of Single Li‐Ion Conductive Solid Polymer Electrolyte Through Salt Additive

Unprecedented Improvement of Single Li‐Ion Conductive Solid Polymer Electrolyte Through Salt Additive

Toward High‐Energy‐Density Lithium Metal Batteries: Opportunities and Challenges for Solid Organic Electrolytes

Unraveling the Synergistic Coupling Mechanism of Li+ Transport in an “Ionogel‐in‐Ceramic” Hybrid Solid Electrolyte for Rechargeable Lithium Metal Battery

Contact Info

Product

Resources

About

Unraveling the Synergistic Coupling Mechanism of Li⁺ Transport in an “Ionogel‐in‐Ceramic” Hybrid Solid Electrolyte for Rechargeable Lithium Metal Battery