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A new review of single-ion conducting polymer electrolytes in the light of ion transport mechanisms

Journal of Energy Chemistry 2024年第2期89卷 543-556,I0012页

作者： Yuqi Luo Lu Gao Weimin Kang State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Textile Science and EngineeringTiangong UniversityTianjin 300387China

With the depletion of fossil fuels and the demand for high-performance energy storage devices,solidstate lithium metal batteries have received widespread attention due to their high energy density and safety *** them,the earliest developed organic solid-state polymer electrolyte has a promising future due to its advantages such as good mechanical flexibility,but its poor ion transport performance dramatically limits its performance ***,single-ion conducting polymer electrolytes(SICPEs)with high lithium-ion transport number,capable of improving the concentration polarization and inhibiting the growth of lithium dendrites,have been proposed,which provide a new direction for the further development of high-performance organic polymer *** view of this,lithium ions transport mechanisms and design principles in SICPEs are summarized and discussed in this *** modification principles currently used can be categorized into the following three types:enhancement of lithium salt anion-polymer interactions,weakening of lithium salt anion-cation interactions,and modulation of lithium ion-polymer *** addition,the advances in single-ion conductors of conventional and novel polymer electrolytes are summarized,and several typical highperformance single-ion conductors are enumerated and analyzed in what way they improve ionic conductivity,lithium ions mobility,and the ability to inhibit lithium ***,the advantages and design methodology of SICPEs are summarized again and the future directions are outlined.

关键词： Lithium metal batteries Single-ion conductor polymer electrolytes Ion transport mechanism Li-ion transport number

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A scalable one-pot strategy for the development of polymer electrolytes adaptable to room-temperature high-voltage lithium batteries

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Chinese Chemical Letters 2024年第3期35卷 461-467页

作者： Yue Guo Xinxin Qu Zhen Li Ruiyuan Tian Xiaokong Liu State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China Key Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education) College of PhysicsJilin UniversityChangchun 130012China

Poly(ethylene oxide)(PEO)polymer electrolytes(PEs)have been commercially applied in LiFePO_(4)||Li solid-state lithium batteries(SSLBs).However,it remains challenging to develop PEO-based PEs applicable to the high-voltage SSLBs with higher energy density,owing to the poor electrochemical stability of ***,we report a scalable strategy for fabricating PEO-based PEs with high-voltage compatibility,by exploiting a new mechanism to stabilize the cathode-electrolyte interface in the highvoltage *** protocol only involves a one-pot synthesis procedure to covalently crosslink the PEO chains,in the presence of high-content lithium bis(trifluoromethylsulphonyl)imide(LiTFSI)salts and N,N-dimethylformamide(DMF).LiTFSI-DMF supramolecular aggregates are formed and firmly embedded in the polymer network,endowing the PE with high room-temperature ionic *** dissociated and highly concentrated TFSI^-anions can enter the Helmholtz layer close to the high-voltage cathode,leading to the formation of a thin and homogeneous cathode electrolyte interface(CEI),mainly composed of LiF,on the *** CEI with high electrochemical stability can effectively stabilize the cathode-electrolyte interface,enabling long-term stable cycling of the high-voltage LiCoO_(2)||Li and nickelrich NCM_(622)||Li batteries at room *** simplicity and scalability of the strategy makes the reported PEO-based PE potentially applicable in high-voltage SSLBs in practice.

关键词： Lithium batteries polymer electrolytes Poly(ethylene oxide) Energy density High-voltage cathodes

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polymer electrolytes reinforced by 2D fluorinated filler for all-solidstate Li-Fe-F conversion-type lithium metal batteries

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Nano Research 2023年第6期16卷 8469-8477页

作者： Meng Lei Xiaoxue Wu Yangyang Liu Keyi Chen Jiulin Hu Chilin Li State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The polyethylene oxide(PEO)based solid-state batteries are considered as promising candidates for the next-generation Li metal batteries with high energy density and ***,the low Li-ion conductivity and high-voltage endurability hinder the further applications of PEO-based *** overcome these issues,herein two-dimensional(2D)CeF_(3)nanoplates with maximally exposed[001]crystal faces are introduced into the PEO matrix to expand the electrochemical window and improve Liion conduction and *** optimized crystal shape and crystal face anisotropy of CeF_(3)nanoplate filler reduce the crystallinity of composite solid polymer electrolyte(CSPE)via its Lewis acid-base interaction with ether oxygen of *** Liaffinity[100]and Li-repellent[001]crystal faces of CeF_(3)nanoplates synergistically realize the dissociation of lithium bis(trifluoromethanesulfonyl)imide(LiTFSI),fast Li-adsorption/desorption,and Li+*** optimized CSPE-0.1CeF_(3)membrane enables the achievement of Li metal batteries with high endurability and stability,from the kinetically favorable Li/Li symmetric cells with long-term cycling over 8000 *** highly reversible Li/LiFePO_(4) cells exhibit a capacity retention of 109.2 mAh·g^(−1)after 1000 cycles at 1 C,corresponding to a low capacity fading rate of 0.026%per *** conversion-type allsolid-state Li/CSPE-0.1CeF_(3)/FeF_(3)cells show a high reversible capacity of 201.9 mAh·g^(−1)after long-term 600 cycles and of 231.1 mAh·g^(−1)at an ultra-high rate of 5 C.

关键词： polymer electrolytes 2D fluoride filler solid-state batteries Li-Fe-F conversion cathodes Li metal anodes

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Novel single-ion conducting polymer electrolytes with high toughness and high resistance against lithium dendrites

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Nano Research 2023年第6期16卷 8457-8468页

作者： David Fraile-Insagurbe Nicola Boaretto Itziar Aldalur Iñigo Raposo Francisco Javier Bonilla Michel Armand María Martínez-Ibañez Centre for Cooperative Research on Alternative Energies CIC energiGUNEBasque Research and Technology Alliance(BRTA)Alava Technology ParkAlbert Einstein 48Vitoria-Gasteiz 01510Spain University of the Basque Country(UPV/EHU) Barrio Sarrienas/nLeioa 48940Spain

Solid-state polymer electrolytes are considered as an alternative to classic liquid electrolytes,particularly for application in highenergy lithium metal *** respect to common dual-ion conductors,single-ion conducting polymer electrolytes(SICPEs)are less affected by lithium dendrites growth and thus are particularly interesting for application in lithium metal *** this work,novel SIC-PEs are developed,based on an ionomer having poly(ethylene-alt-maleimide)backbone and lithium phenylsulfonyl(trifluoromethanesulfonyl)imide pendant moieties,further blended with poly(ethylene oxide)(PEO)and poly(ethylene glycol)dimethyl ether(PEGDME).These SIC-PEs exhibit ionic conductivity around~7×10^(−6)S·cm^(−1) at 70℃,lithium transference number close to unity,and excellent mechanical properties,with fracture toughness over 30 J·cm^(−3).Additionally,the electrolytes show very high resistance against lithium dendrites growth,by cycling for more than 1200 h in Li°symmetric cells at a current density of 0.1 mA·cm^(−2).LiFePO4||Li°cells with these SIC-PEs were cycled at 70℃ and C/10,showing initial capacity of almost 160 mAh·g^(−1)and residual capacity of 45%after 100 *** work shows that single-ion conducting polymer electrolytes based on poly(ethylene-alt-maleimide)backbone are promising materials for application as electrolytes or catholytes in lithium metal polymer batteries.

关键词： single-ion conductors solid-state Li metal batteries polymer electrolytes lithium dendrites transference number mechanical properties

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Advances and prospects of PVDF based polymer electrolytes

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Journal of Energy Chemistry 2022年第1期31卷 62-84,I0003页

作者： Yixin Wu Yu Li Yang Wang Qian Liu Qingguo Chen Minghua Chen Key Laboratory of Engineering Dielectric and Applications(Ministry of Education) School of Electrical and Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080HeilongjiangChina

Exploring highly foldable batteries with no safety hazard is a crucial task for the realization of portable,wearable,and implantable electric *** these concerns,developing solid-state batteries is one of the most promising routes to achieve this *** of the excellent flexibility and processability,polyvinylidene fluoride(PVDF) based electrolytes possess great potential to pack high energy density flexible batteries,however,suffers the various intrinsic shortcomings such as inferior ionic conductivity,a high degree of crystallinity,and lack of reactive *** the progress of the present state and concluding the specific challenges faced by PVDF based electrolytes will help to develop PVDF based polymer *** this review,we summarize the recent progress of gel polymer electrolytes and all solid polymer electrolytes based on *** ion transport mechanisms and preparation methods of PVDF based electrolytes are briefly ***,the current design principle and properties of electrolytes are highlighted and systematically *** peculiar modified strategies performed in lithium-sulfur batteries and lithium-oxygen batteries are also ***,this review describes the challenges and prospects of some solid-state electrolytes to provide strategies for manufacturing high-performance PVDF electrolytes aimed at practical application with flexible requirements.

关键词： polymer electrolytes PVDF Lithium ion batteries Modified strategies Ions transport mechanisms

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Fabricating ion-conducting channel in SU-8 matrix for highperformance patternable polymer electrolytes

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Nano Research 2023年第1期16卷 496-502页

作者： Tianzhao Li Xuelei Pan Zhongzhuo Yang Fang Liu Kesong Yu Lin Xu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Advances in electrochemical energy storage technologies drive the need for battery safety performance and miniaturization,which calls for the easily processable polymer electrolytes suitable for on-chip microbattery ***,the low ionic conductivity of polymer electrolytes and poor-patternable capabilities hinder their application in ***,we modified SU-8,as the matrix material,by poly(ethylene oxide)(PEO)with lithium salts to obtain a patternable lithium-ion polymer *** to the highly amorphous state and more Li-ion transport pathways through blending effect and the increase in number of epoxides,the ionic conductivity of achieved sample is increased by an order of magnitude to 2.9×10^(−4) S·cm^(−1) in comparison with the SU-8 sample at 50°*** modified SU-8 exhibits good thermal stability(>150°C),mechanical properties(elastic modulus of 1.52 GPa),as well as an electrochemical window of 4.3 ***-cell and microdevice were fabricated and tested to verify the possibility of the micro-sized on-chip *** of these results demonstrate a promising strategy for the integration of on-chip batteries with microelectronics.

关键词： polymer electrolytes patternable electrolytes on-chip battery lithium-ion battery

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polymer electrolytes Based on Electrospun PEO-P(VdF-HFP) Blends for Lithium-polymer Batteries

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复旦学报（自然科学版） 2007年第5期46卷 839-页

作者： P.Raghvan J.Manuel G.Cheruvally J.H.Ahn Department of Chemical and Biological Engineering and ITRC for Energy Storage and Conversion Gyeongsang National University 900 Gajwa-dongJinju 660-701Republic of Korea

1 Results Electrospinning has attracted immense attention recently as a versatile and easy method to prepare polymer membranes that are made up of thin fibers of micron and sub-micron *** membranes are particularly suitable as host matrices for polymer electrolytes (PEs) since the interlaying of fibers generate large porosity with fully interconnected pore structure facilitating the easy transport of *** of PEs based on electrospun membranes of poly(vinylidene fluoride) (PVd...

关键词： electrospinning polymer electrolytes fibrous membranes: lithium batteries

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Nanostructured polymer Composite electrolytes with Self-Assembled Polyoxometalate Networks for Proton Conduction

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CCS Chemistry 2022年第1期4卷 151-161页

作者： Gang Wang Jialin Li Lichao Shang Haibo He Tingting Cui Shengchao Chai Chengji Zhao Lixin Wu Haolong Li State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012 Key Laboratory of High Performance Plastics Ministry of EducationCollege of ChemistryJilin UniversityChangchun 130012

The key challenge for the use of polymer electrolytes is to realize a high ionic conductivity without scarifying their mechanical ***,we report a facile strategy to prepare a nanostructured polymer electrolyte with both high proton conductivity and high modulus,based on the electrostatic self-assembly of polyoxometalate cluster H_(3)PW_(12)O_(40)(PW)and comb copolymer poly(ether-etherketone)-grafted-poly(vinyl pyrrolidone)(PEEK-gPVP).The incorporation of protonic acid PW can enable the PEEK-g-PVP to be highly proton conductive and create flexible composite electrolyte ***,nanoscale phase separation between PEEK domains and PVP/PW domains spontaneously occurs in these membranes,forming a bicontinuous structure with three-dimensional(3D)-connected PW *** to the dual role of PW networks as both proton transport pathways and mechanical enhancers,these membranes exhibit proton conductivities higher than 30 mS cm^(−1) and modulus over 4 ***,the direct methanol fuel cells equipped with these membranes show good cell *** the wide tunability of comb copolymers and polyoxometalates,this system can be extended to develop a variety of functional electrolyte materials,for example,the lithium-ion conductive electrolytes by using polyoxometalatebased lithium salts,which provides a promising platform to explore versatile electrolyte materials for energy and electronic applications.

关键词： self-assembly polyoxometalates polymer electrolytes nanocomposites proton conduction

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AC Impedance and FTIR Studies of PVA-ZnCl2 Based Solid polymer electrolytes

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Organic polymer Material Research 2021年第1期3卷 1-4页

作者： Jayanthi S The Standard Fireworks Rajaratnam College for Women(Autonomous) Sivakasi626123India

Solid polymer electrolytes(SPEs)comprising of poly(vinyl alcohol)(PVA)added Zinc chloride(ZnCl2)systems have been prepared via solvent casting *** prepared samples have been subjected to AC impedance spectroscopic analysis and Fourier Transform Infrared Spectroscopy(FTIR)*** ionic conductivity of 3.91949*10^(-7) Scm^(-1) was achieved for 60 wt%of PVA and 40wt%of ZnCl2 system at room *** structural changes and hence the complex formation between the constituents used in the present study has been confirmed through FTIR analysis.

关键词： Complexation FTIR Ionic conductivity polymer electrolytes

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A modi fi ed PVDF-HFP/PMMA crosslinked co-polymer for highperformance all-solid-state lithium metal batteries

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PARTICUOLOGY 2024年第10期93卷 203-210页

作者： Wang, Sijia He, Liang Wang, Mengting Guo, Xingtong Qiu, Xiangyun Xu, Shoudong Senin, Petr Bian, Ting Wei, Tao Jiangsu Univ Sci & Technol Sch Energy & Power Zhenjiang 212003 Peoples R China Qingdao Univ Coll Mech & Elect Engn Power & Energy Storage Syst Res Ctr Qingdao 266071 Peoples R China Taiyuan Univ Technol Coll Chem Engn & Technol Taiyuan 030024 Peoples R China Ogarev Mordovia State Univ Inst Mech & Power Engn Saransk 430005 Russia

For all-solid-state lithium batteries (ASSLBs), polymer-blended solid composite electrolytes (SCEs) have drawn wide interest owing to their significance in improving the interfacial solid-solid contacts and inhibiting the growth of lithium dendrites. In this work, SCEs based on PVDF-HFP/PMMA matrix containing MOFs (NH 2-MIL-53(Al)) and LiTFSI were designed and synthesized employing an easy solution casting method. The synthesized samples were examined by XRD, SEM, EDS, and electrochemical tests. It was found that MPP-2 SCE not only has excellent ionic conductivity at 60 degrees C of 5.54 x 10-4 S cm-1 , but also exhibits superior interfacial compatibility in Li||Li symmetric batteries, which can constantly cycle for about 800 h at 0.1 mA cm-2 with no short-circuiting. The assembled Li|MPP-2|LiFePO 4 cell exhibited a first discharge specific capacity of up to 157.1 mAh g-1 at 60 degrees C and 0.2 C. This work may help to further advance the progress of ASSLBs in the future. (c) 2024 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

关键词： NH2-MIL-53(Al) All solid-state lithium batteries (ASSLBs) PMMA PVDF-HFP Solid composite electrolytes (SCEs) polymer electrolytes PERFORMANCE FRAMEWORK

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