Composite solid electrolytes for all-solid-state lithium batteries

Dirican, Mahmut; Yan, Chaoyi; Zhu, Pei; Zhang, Xiangwu

doi:10.1016/j.mser.2018.10.004

Cited by 381 publications

(284 citation statements)

References 158 publications

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“…Figure 3 shows the DSC profiles of neat PEO-based SPE membrane and PEO/PPC BSPE membrane with different PPC contents within a temperature range of −60 C to 100 C. Table 1 presents the glass transition temperature (T g ), the melting point (T m ) and crystallinity (χ c ) of solid electrolytes obtained by DSC measurements. The crystallinity (χ c ) of PEO-based SPEs is calculated using Formula (3).…”

Section: Thermal Properties Analysismentioning

confidence: 99%

“…Therefore, it is necessary to look for solid electrolytes which can replace liquid organic electrolytes to eliminate hidden threaten. 3 Solid polymer electrolytes (SPEs) have a broad application prospect in the direction of LIBs because of their good flexibility and high voltage resistance, so they have been paid more and more attention. 4,5 In all kinds of LIBs, SPEs not only act as a separator to prevent short circuit phenomenon, but also act as a bridge between cathode and anode to promote the transport of ions.…”

Section: Introductionmentioning

confidence: 99%

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Toward high performance solid‐state lithium‐ion battery with a promising PEO / PPC blend solid polymer electrolyte

Zhu

Jia

et al. 2020

Int J Energy Res

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A promising solid polymer blend electrolyte is prepared by blending of poly(ethylene oxide) (PEO) with different content of amorphous poly(propylene carbonate) (PPC), in which the amorphous property of PPC is utilized to enhance the amorphous/free phase of solid polymer electrolyte, so as to achieve the purpose of modifying PEO-based solid polymer electrolyte. It indicates that the blending of PEO with PPC can effectively reduce the crystallization and increase the ion conductivity and electrochemical stability window of solid polymer electrolyte. When the content of PPC reaches 50%, the ionic conductivity reaches the maximum, which is 2.04 × 10 −5 S cm −1 and 2.82 × 10 −4 S cm −1 at 25 C and 60 C, respectively. The electrochemical stability window increases from 4.25 to 4.9 V and the interfacial stability of lithium metal anode is also greatly improved. The solid-state LiFePO 4 //Li battery with the PEO/50%PPC blend solid polymer electrolyte has good cycling stability, which the maximum discharge specific capacity is up to 125 mAh g −1 at a charge/discharge current density of 0.5 C at 60 C.

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Section: Thermal Properties Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toward high performance solid‐state lithium‐ion battery with a promising PEO / PPC blend solid polymer electrolyte

Zhu

Jia

et al. 2020

Int J Energy Res

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“…Nevertheless, it is difficult to greatly increase the mechanical strength by using the nanofillers for commercial applications due to the failure of forming interconnected reinforcements [3,26]. Moreover, the room-temperature ion conductivity cannot be greatly improved, because of the low dispersity of the high-surface-area nanofillers, poor interactions between the nanofiller and the electrolyte matrices, and short ion transport pathways between the nanofiller/polymer-Li salt interfaces [13,25,[27][28][29]. To address these issues, constructing special CPEs by filling the SPEs in porous inorganic films as three-dimensional (3D) scaffolds has been reported to significantly enhance the thermal stability, electrochemical window and ionic conductivity [30][31][32][33][34][35][36]; however, there are few reports on the mechanical properties of these CPEs and the cycling performance of the CPE-based all-solid-state batteries, possibly due to the high stiffness/brittleness of the ceramic scaffolds.…”

Section: Introductionmentioning

confidence: 99%

Flexible, high-voltage, ion-conducting composite membranes with 3D aramid nanofiber frameworks for stable all-solid-state lithium metal batteries

Liu

Lyu

et al. 2020

Sci. China Mater.

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The practical application of solid polymer electrolytes in high-energy Li metal batteries is hindered by Li dendrites, electrochemical instability and insufficient ion conductance. To address these issues, flexible composite polymer electrolyte (CPE) membranes with three dimensional (3D) aramid nanofiber (ANF) frameworks are facilely fabricated by filling polyethylene oxide (PEO)-lithium bis(trifluoromethylsulphonyl)imide (LiTFSI) electrolyte into 3D ANF scaffolds. Because of the unique composite structure design and the continuous ion conduction at the 3D ANF framework/PEO-LiTFSI interfaces, the CPE membranes show higher mechanical strength (10.0 MPa), thermostability, electrochemical stability (4.6 V at 60°C) and ionic conductivity than the pristine PEO-LiTFSI electrolyte. Thus, the CPEs display greatly improved interfacial stability against Li dendrites (≥1000 h at 30°C under 0.10 mA cm −2), compared with the pristine electrolyte (short circuit in 13 h). The CPE-based all-solid-state LiFePO 4 /Li cells also exhibit superior cycling performance (e.g., 130 mA h g −1 with 93% retention after 100 cycles at 0.4 C) than the ANF-free cells (e.g., 82 mA h g −1 with 66% retention). This work offers a simple and effective way to achieve high-performance composite electrolyte membranes with 3D nanofiller framework for promising solid-state Li metal battery applications.

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“…Owing to these advantages, much research effort has been devoted to developing high‐performance SSEs with high Li + conductivity, excellent mechanical performance, and good interface compatibility with electrodes. Generally, all solid‐state electrolyte materials can be primarily categorized into inorganic solid electrolytes (ISEs), polymeric solid electrolytes (PSEs) and organic/inorganic composite electrolytes . Among the three types of SSEs, ISEs have shown high Li + conductivity that is approximately equal to that of liquid organic electrolytes, and their transference number is almost unity .…”

Section: Introductionmentioning

confidence: 99%

Composition Modulation and Structure Design of Inorganic‐in‐Polymer Composite Solid Electrolytes for Advanced Lithium Batteries

Liu

Zhang

et al. 2019

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108

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Figure 3. a) The mechanism of the movement of Li + along the PEO chain. Reproduced with permission. [42] Copyright 2006, Elsevier. b) The phaseseparation model of adding succinonitrile into a PEO/LiTFSI electrolyte system. c) TEM image of PEO-succinonitrile/LiTFSI electrolyte. d) Comparison of the ionic conductivity of PEO-succinonitrile/LiTFSI and PEO/LiTFSI electrolytes. e) Linear elastic tensile modulus of PEO-succinonitrile/LiTFSI with varying LiTFSI content. Reproduced with permission. [45]

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Composite solid electrolytes for all-solid-state lithium batteries

Cited by 381 publications

References 158 publications

Toward high performance solid‐state lithium‐ion battery with a promising PEO / PPC blend solid polymer electrolyte

Toward high performance solid‐state lithium‐ion battery with a promising PEO / PPC blend solid polymer electrolyte

Flexible, high-voltage, ion-conducting composite membranes with 3D aramid nanofiber frameworks for stable all-solid-state lithium metal batteries

Composition Modulation and Structure Design of Inorganic‐in‐Polymer Composite Solid Electrolytes for Advanced Lithium Batteries

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