Investigations on materials and ion transport properties of Zn2+ conducting nano-composite polymer electrolytes (NCPEs): [(90 PEO: 10 Zn(CF3SO3)2)+ x ZnO]

Karan, Santanu; Sahu, Manju; Sahu, Tripti Bala; Mahipal, Y. K.; Sahu, Dinesh Kumar; Agrawal, Ritesh

doi:10.1016/j.mtcomm.2017.10.009

Cited by 25 publications

(10 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The discharge plateaus still retained even increasing the rates, and decent specific capacities of 181, 161, 137, 120, 93, and 64 mAh g −1 were recorded at 0.2, 0.5, 1, 2, 4, and 6 C, respectively (Figure 5c). The rate performance of our solid Zn‖V 2 O 5 battery was benchmarked with other works in Figure 5d, which highlights the superiority over many reported solid batteries, [ 27,28,38,48–50 ] further confirming the fast Zn 2+ migration kinetics merited by the advanced PSIC structure. Lastly, the long‐term cycling performance test of the solid Zn‖V 2 O 5 battery was conducted, and the battery exhibited a remarkable cycling life of 10 000 cycles with high capacity retention (88.5%) (Figure 5e).…”

Section: Resultssupporting

confidence: 72%

Polymeric Single‐Ion Conductors with Enhanced Side‐Chain Motion for High‐Performance Solid Zinc‐Ion Batteries

et al. 2022

View full text Add to dashboard Cite

Zn‐based solid polymer electrolytes (SPEs) have enormous potential in realizing high‐performance zinc‐ion batteries. Polymeric single‐ion conductor (PSIC)‐based SPEs can largely eradicate anion migration and side reactions of electrodes with decreased polarization, but the ionic conductivity is still unsatisfactory due to the tight localized ion interactions and sluggish chain motion. Herein, by employing the heterocyclic tetrazole as the anionic center of the side chain, a novel PSIC is fabricated with optimized charge delocalization and enhanced side‐chain motion. The as‐prepared PSIC delivers an ionic conductivity up to 5.4 × 10−4 S cm−1 with an ultrahigh Zn2+ transference number of 0.94. Based on the PSIC, dendrite‐free and hydrogen‐free Zn plating/stripping cycling (2000 h) is achieved. A further assembled Zn‖V2O5 battery exhibits superior performances to other solid ZIBs, including a high discharge capacity, excellent rate capability, and long cycling life. In addition, a remarkable shelf‐life (90 d), low self‐discharge rate, and good temperature adaptability of the solid battery can be achieved benefiting from the high stability of the SPE during operation. The PSIC‐based SPEs with advanced ion‐transport structure endow solid ZIBs with significant performance improvement, high safety, and durability.

show abstract

Section: Resultssupporting

confidence: 72%

Polymeric Single‐Ion Conductors with Enhanced Side‐Chain Motion for High‐Performance Solid Zinc‐Ion Batteries

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The melting points of the PEO composite ( T m = 39.9 °C), PEO-[Emim]OTF-ZnO composite ( T m = 49.7 °C), and PEO-[Emim]OTF (52.9 °C) are obviously smaller than those of pure PEO ( T m = 65.9 °C). Therefore, it can be concluded that the addition of [Emim]OTF significantly results in a higher amorphous degree, while ZnO and Zn(OTF) 2 can further soften the PEO chains through intermingling and cross-linking, respectively. ,,− …”

Section: Resultsmentioning

confidence: 99%

Ionic Liquid-Softened Polymer Electrolyte for Anti-Drying Flexible Zinc Ion Batteries

Wang

Guo

Chen

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Using solid polymer electrolytes has been proven to be an efficient strategy to address the metal dendrites and pursuing high-voltage performance. Polyethylene oxide (PEO), as a popular polymer matrix, hardly works for zinc ion batteries due to its poor zinc ionic conductivity and the poor interfacial adhesion. Here, an ionic liquid, 1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([Emim]OTF), was applied as a plasticizer to tune the room-temperature ionic conductivity and mechanical properties of PEO membrane electrolyte. Additional nanofillers ZnO were utilized to enhance the plasticity and modulus. With an optimized composition, the membrane exhibits a high modulus and soft mechanics, which can facilitate the reversible stripping/plating of Zn without formation of Zn dendrites. The optimized polymer electrolyte achieved an ionic conductivity of 2.3 × 10–3 S cm–1 at room temperature with a softness of 5.1 mm. By applying the resulted soft membrane electrolyte for a Zn-MnO2 battery, a capacity of 137 mAh g–1 is achieved at 30 mA g–1 even without the contribution from H+. Such an electrolyte also works for Prussian blue analogue cathodes. Importantly, the addition of [Emim]OTF can enhance the soft contact with the electrodes, and a stable output is delivered under severe deformations for the assembled flexible devices.

show abstract

“…Meanwhile, the cartilage-inspired composite could greatly improve the ionic conductivity (2.5 × 10 –5 S cm –1 ). In addition, PVDF/PEO-Zn(CF 3 SO 3 ) 2 (PVDF = polyvinylidene fluoride) and PEO/Zn(CF 3 SO 3 ) 2 + x ZnO electrolytes were also studied. However, none of their ionic conductivities reached a desirable level (the highest ionic conductivities reached only 10 –5 S cm –1 ).…”

Section: Electrolyte Optimization For Circumventing These Issuesmentioning

confidence: 99%

Electrolyte Strategies toward Better Zinc-Ion Batteries

et al. 2021

View full text Add to dashboard Cite

With the increasing demand for large-scale energy storage, high-safety and low-cost rechargeable zinc-ion batteries (ZIBs) have been regarded as potential substitutes for lithium-ion batteries (LIBs). Exploring high-performance cathodes and a stable zinc anode is important, and fruitful achievements have been made. However, many fundamental issues still hinder the development of zinc-based energy storage systems. As a pivotal component, the electrolyte provides the basic operating environment to ensure the high compatibility and reversible cycling of each component in the battery. In this Focus Review, we present a comprehensive overview of electrolyte strategies in terms of solving or alleviating the issues of cathode dissolution, zinc dendrites and corrosion, hydrogen evolution, and so on. Furthermore, the adoption of gel electrolytes in flexible batteries is briefly introduced. Finally, the recommended future research perspectives of electrolytes are discussed, which may boost the development of this field.

show abstract

Investigations on materials and ion transport properties of Zn2+ conducting nano-composite polymer electrolytes (NCPEs): [(90 PEO: 10 Zn(CF3SO3)2)+ x ZnO]

Cited by 25 publications

References 35 publications

Polymeric Single‐Ion Conductors with Enhanced Side‐Chain Motion for High‐Performance Solid Zinc‐Ion Batteries

Polymeric Single‐Ion Conductors with Enhanced Side‐Chain Motion for High‐Performance Solid Zinc‐Ion Batteries

Ionic Liquid-Softened Polymer Electrolyte for Anti-Drying Flexible Zinc Ion Batteries

Electrolyte Strategies toward Better Zinc-Ion Batteries

Contact Info

Product

Resources

About