Strategies to Boost Ionic Conductivity and Interface Compatibility of Inorganic - Organic Solid Composite Electrolytes

Zhu, Xiaoqi; Wang, Kai; Xu, Yanan; Zhang, Gefei; Li, Shengqiang; Li, Chen; Zhang, Xiong; Sun, Xianzhong; Ge, Xingbo; Ma, Yanwei

doi:10.1016/j.ensm.2021.01.002

Cited by 117 publications

(69 citation statements)

References 173 publications

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“…The ionic conductivity of the gelatin electrolyte was calculated to be 3.67 ms cm −1 based on the method in Fig. S21 [ 59 , 60 ]. Figure 5 b shows the CV test results under different conditions in simulated actual application.…”

Section: Resultsmentioning

confidence: 99%

Enabling Multi-Chemisorption Sites on Carbon Nanofibers Cathodes by an In-situ Exfoliation Strategy for High-Performance Zn–Ion Hybrid Capacitors

Lian

Chen

et al. 2022

Nano-Micro Lett.

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Carbon nanofibers films are typical flexible electrode in the field of energy storage, but their application in Zinc-ion hybrid capacitors (ZIHCs) is limited by the low energy density due to the lack of active adsorption sites. In this work, an in-situ exfoliation strategy is reported to modulate the chemisorption sites of carbon nanofibers by high pyridine/pyrrole nitrogen doping and carbonyl functionalization. The experimental results and theoretical calculations indicate that the highly electronegative pyridine/pyrrole nitrogen dopants can not only greatly reduce the binding energy between carbonyl group and Zn2+ by inducing charge delocalization of the carbonyl group, but also promote the adsorption of Zn2+ by bonding with the carbonyl group to form N–Zn–O bond. Benefit from the multiple highly active chemisorption sites generated by the synergy between carbonyl groups and pyridine/pyrrole nitrogen atoms, the resulting carbon nanofibers film cathode displays a high energy density, an ultralong-term lifespan, and excellent capacity reservation under commercial mass loading (14.45 mg cm‒2). Particularly, the cathodes can also operate stably in flexible or quasi-solid devices, indicating its application potential in flexible electronic products. This work established a universal method to solve the bottleneck problem of insufficient active adsorption sites of carbon-based ZIHCs.Imoproved should be changed into Improved.

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Section: Resultsmentioning

confidence: 99%

Enabling Multi-Chemisorption Sites on Carbon Nanofibers Cathodes by an In-situ Exfoliation Strategy for High-Performance Zn–Ion Hybrid Capacitors

Lian

Chen

et al. 2022

Nano-Micro Lett.

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“…In this regard, researchers have made great efforts and put forward a variety of effective strategies, including molecular structure design, [ 5 ] organic and inorganic composite, [ 6 ] gel electrolytes, [ 7 ] polymer blending. [ 8 ] Through the unremitting efforts, the ion conductivity of polymer electrolytes has been significantly improved. [ 9 ] Currently, some polymer electrolytes possess a considerable order of magnitude with that of liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Functional Applications of Polymer Electrolytes in High‐Energy‐Density Lithium Batteries

Wang

Zhai

Zhou

et al. 2022

Macro Chemistry & Physics

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Polymer electrolytes have attracted great interest in advanced lithium batteries. Recently, it has been found that there are many functional applications of polymer electrolytes in lithium batteries, which are very important for the development of high-energy-density lithium batteries. In this review, the functional applications of polymer electrolytes are reviewed in terms of protecting lithium metal anode, coating for high-voltage cathodes, and improving the safety of batteries. Finally, the remaining challenges and future perspectives of polymer electrolytes in these functional applications are presented. This review aims to provide a comprehensive understanding of polymer electrolytes and promotes their functional application in high-energy-density lithium batteries.

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“…Solid electrolytes are the key part of solid-state lithium-ion battery (SSLIB), which is believed as one of the next-generation battery systems with high energy density and superior safety [4]. Composite polymer electrolytes (CPEs), such as poly(ethylene oxide) (PEO), are the most promising candidate material for commercial SSLIB [5,6]. However, the low ionic conductivity that resulted from high crystallinity still cannot be satisfied for application.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Performance of Poly(ethylene oxide) Composite Polymer Electrolyte via Incorporating Lithiated Covalent Organic Framework

Yao

Cao

et al. 2021

Trans. Tianjin Univ.

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The lithiated covalent organic framework (named TpPa-SO3Li), which was prepared by a mild chemical lithiation strategy, was introduced in poly(ethylene oxide) (PEO) to produce the composite polymer electrolytes (CPEs). Li-ion can transfer along the PEO chain or across the layer of TpPa-SO3Li within the nanochannels, resulting in a high Li-ion conductivity of 3.01 × 10−4 S/cm at 60 °C. When the CPE with 0.75 wt.% TpPa-SO3Li was used in the LiFePO4||Li solid-state battery, the cell delivered a stable capacity of 125 mA·h/g after 250 cycles at 0.5 C, 60 °C. In comparison, the cell using the CPE without TpPa-SO3Li exhibited a capacity of only 118 mA·h/g.

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Strategies to Boost Ionic Conductivity and Interface Compatibility of Inorganic - Organic Solid Composite Electrolytes

Cited by 117 publications

References 173 publications

Enabling Multi-Chemisorption Sites on Carbon Nanofibers Cathodes by an In-situ Exfoliation Strategy for High-Performance Zn–Ion Hybrid Capacitors

Enabling Multi-Chemisorption Sites on Carbon Nanofibers Cathodes by an In-situ Exfoliation Strategy for High-Performance Zn–Ion Hybrid Capacitors

Functional Applications of Polymer Electrolytes in High‐Energy‐Density Lithium Batteries

Enhanced Electrochemical Performance of Poly(ethylene oxide) Composite Polymer Electrolyte via Incorporating Lithiated Covalent Organic Framework

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