Flexible all-solid-state electrolytes with ordered fast Li-ion-conductive nano-pathways for rechargeable lithium batteries

Yuan, Fen; Yang, Lijun; Zou, Xin; Dong, Shunping; Chi, Shuai; Liu, Juewen; Xing, Haoran; Bian, Longchun; Bao, Lixia; Wang, Jiliang

doi:10.1016/j.jpowsour.2019.227305

Cited by 20 publications

(8 citation statements)

References 40 publications

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“…Very importantly, the value is significantly much higher than the lowest required value of above 10 –4 S cm –1 , implying the potential use in future . We believe that the construction of the interconnected amorphous regions in the PEO-based electrolyte with high Li + mobility was successfully achieved via rearranging the molecular configuration of the PEO polymer chains induced by the strong intermolecular interactions of the imidazolium cation of the im -PIL. , …”

Section: Resultsmentioning

confidence: 87%

“…34 We believe that the construction of the interconnected amorphous regions in the PEO-based electrolyte with high Li + mobility was successfully achieved via rearranging the molecular configuration of the PEO polymer chains induced by the strong intermolecular interactions of the imidazolium cation of the im-PIL. 35,36 Stronger electrostatic interactions between im-PIL and LiSS and PEO not only decrease the crystallinity of the PEO matrix but also increase the electrochemical stability and mechanical strength of PIL-doped PEO/LiSS CPEs. Figure 4d shows the linear scanning cyclic voltammetry curves of PEO-LiTFSI and PIL-doped PEO/LiSS electrolyte membranes.…”

Section: Resultsmentioning

confidence: 99%

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Imidazolium-Type Poly(ionic liquid) Endows the Composite Polymer Electrolyte Membrane with Excellent Interface Compatibility for All-Solid-State Lithium Metal Batteries

Bao

Fan

Luo

et al. 2022

ACS Appl. Mater. Interfaces

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Developing a poly(ethylene oxide) (PEO)-based polymer electrolyte with high ionic conductivity and robust mechanical property is beneficial for real applications of all-solid-state lithium metal batteries (ASSLMBs). Herein, an excellent organic/inorganic interface compatibility of all-solid-state composite polymer electrolytes (CPEs) is achieved using a novel imidazolium-type poly(ionic liquid) with strong electrostatic interactions, providing insights into the achievement of highly stable CPEs. The key properties such as micromorphologies, thermal behavior, crystallinity, t Li +, mechanical property, lithium anode surficial morphology, and electrochemical performance are systematically investigated. The combined experimental and density functional theory (DFT) simulation results exhibit that the strong electrostatic interaction and ion–dipole interaction cooperated to improve the compatibility of the CPE, with a high ionic conductivity of 1.46 × 10–4 S cm–1 at 40 °C and an incredible mechanical strain of 2000% for dendrite-free and highly stable all-solid-state LMBs. This work affords a promising strategy to accelerate the development of PEO-based polymer electrolytes for real applications in ASSLMBs.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Imidazolium-Type Poly(ionic liquid) Endows the Composite Polymer Electrolyte Membrane with Excellent Interface Compatibility for All-Solid-State Lithium Metal Batteries

Bao

Fan

Luo

et al. 2022

ACS Appl. Mater. Interfaces

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“…Ionic conductivity of the SPE was analyzed based on the electrochemical impedance spectroscopy (EIS) method using a CHI-660E electrochemical workstation (Shanghai Chenhua Company, China). 35…”

Section: Methodsmentioning

confidence: 99%

A solid polymer electrolyte containing a novel lithium borate salt for all-solid-state lithium-ion batteries

Xiao

Bao

Lei

2020

Polymers and Polymer Composites

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We prepared a solid polymer electrolyte (SPE) composed of a lithium borate salt and a polymer matrix, which can be employed for all-solid-state lithium-ion batteries. The lithium borate salt was made from lithium cations and bis (maleic acid) borate anions, and exhibits an excellent thermal stability as well as high ionic conductivity. The polymer matrix is an amorphous polymeric material having no crystalline regions, which is beneficial for the movement of lithium ions in the SPE. The polymer matrix also has good mechanical performance and thermal stability. Moreover, the SPE also has a relatively high ionic conductivity.

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“…β-Li 3 PS 4 glass-ceramic is a Li superionic conductor whose conductivity is higher than 10 −4 S cm −1 at RT with a relatively stable electrochemical property (Chen et al, 2018 ). LiBMB-PEO SPEs display a highly ordered ionic pathways [the quasi-period value ( T p ) is lower than 100 ns] associated with a high electro-stable potential of up to 7.2 V at 60°C (Yuan et al, 2019 ). The LiFePO 4 |LiBMB-PEO SPEs|Li cell delivers an initial discharge capacity of 145.5 mA h g −1 at 0.1 C and ultra-high capacity retention (98.5% after 60 cycles), revealing good reliability of the produced cells.…”

Section: Peo Polymer Solid Electrolytes Based On Different Compositiomentioning

confidence: 99%

Polyethylene Oxide-Based Composites as Solid-State Polymer Electrolytes for Lithium Metal Batteries: A Mini Review

Zhao

et al. 2020

Front. Chem.

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Solid-state polymer electrolytes (SPEs) have great processing flexibility and electrode–electrolyte contact and have been employed as the promising electrolytes for lithium metal batteries. Among them, poly(ethylene oxide) (PEO)-based SPEs have attracted widespread attention because of easy synthesis, low mass density, good mechanical stability, low binding energy with lithium salts, and excellent mobility of charge carriers. In order to overcome the low room-temperature ionic conductivity and the poor thermodynamic stability in high-voltage devices (>4.2 V) of the PEO materials, composition modulations by incorporating PEO with inorganic and/or organic components have been designed, which could effectively enable the applications of PEO-based SPEs with widened electro-stable voltage ranges. In this mini review, we describe recent progresses of several kinds of PEO composite structures for SPEs, and we compare the synthesis strategies and properties of these SPEs in lithium batteries. Further developments and improvements of the PEO-based materials for building better rechargeable batteries are also discussed.

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Flexible all-solid-state electrolytes with ordered fast Li-ion-conductive nano-pathways for rechargeable lithium batteries

Cited by 20 publications

References 40 publications

Imidazolium-Type Poly(ionic liquid) Endows the Composite Polymer Electrolyte Membrane with Excellent Interface Compatibility for All-Solid-State Lithium Metal Batteries

Imidazolium-Type Poly(ionic liquid) Endows the Composite Polymer Electrolyte Membrane with Excellent Interface Compatibility for All-Solid-State Lithium Metal Batteries

A solid polymer electrolyte containing a novel lithium borate salt for all-solid-state lithium-ion batteries

Polyethylene Oxide-Based Composites as Solid-State Polymer Electrolytes for Lithium Metal Batteries: A Mini Review

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