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High-adhesion anionic copolymer as solid-state electrolyte for dendrite-free Zn-ion battery

Nano Research 2022年第8期15卷 7190-7198页

作者： Jiaxu Li Junfeng Ren Caixia Li Pengxian Li Tingting Wu Shiwei Liu Lei Wang State Key Laboratory Base of Eco-chemical Engineering Taishan Scholar Advantage and Characteristic Discipline Team of Eco-chemical Process and TechnologyQingdao University of Science and TechnologyQingdao 266042China College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042China

To conquer severe dendrites formation and side reactions of zinc metal anodes,which are serious obstacles for the practical applications of aqueous zinc ion battery(ZIB),herein,we develop a sodium allysulfonate(SAS)and acrylamide(AM)copolymer by radical polymerization process(crosslinking of C=C)as solid-state *** interface kinetics is improved remarkably due to the high adhesion and excellent ion transferability of AM-SAS(AS)*** the sulfonic acid group in the hydrogel electrolyte can enhance the internal ionic conductivity effectively benefiting from its high affinity to Zn^(2+).Also,polymer chains realize re-regulation to Zn^(2+)flow in atomic-scale,thus leading to controllable deposition of Zn onto the dendrite-free Zn ***,the AS-1.5 electrolyte achieves ultra-stable Zn deposition/stripping behaviors with the lifespan over 1,000 h via the suppression of side-reactions and paralleled Zn *** performances of Zn/Mn-doped V_(2)O_(5)(MnVO)(over 500 cycles)and Zn/diquinoxalino[2,3-a:2',3'-c]phenazine(HATN)(over 2,500 cycles)full cells demonstrate that the AS hydrogel electrolyte is a common approach for ZIBs under various *** molecular regulation engineering opens a novel route for hydrogel electrolyte fabrication,where sulfonic groups perform as media of Zn^(2+)***,high bulk ionic conductivity as well as excellent interface ion diffusion ability is obtained.

关键词： copolymer adhesion ionic conductivity dendrite-free interface kinetics

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Sodium-ion conducting polymer electrolytes

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Rare Metals 2023年第1期42卷 1-16页

作者： Zhi-Yong Li Zhuo Li Jia-Long Fu Xin Guo State Key Laboratory of Material Processing and Die and Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China

Almost unlimited reserves and low cost of sodium are accelerating the commercialization of sodiumion ***,serious safety and stability issues,arising mainly from organic liquid electrolytes,hinder further developments of sodium-ion *** electrolytes might be a solution to the safety and stability issues due to the better safety of ***,an overview is provided on recent advances in polymer electrolytes for solid-state sodium batteries,including solid polymer electrolytes,composite polymer electrolytes and gel polymer *** properties,ionic conduction mechanisms and promising applications of polymer electrolytes are discussed,and pending challenges and effective solutions are ***,this review will promote commercial applications of polymer electrolytes in energy storage systems.

关键词： Polymer electrolyte ionic conductivity ionic conduction mechanism Sodium-ion battery(SIB) Solidstate battery(SSB)

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PREPARATION OF STAR NETWORK PEG-BASED GEL POLYMER ELECTROLYTES FOR ELECTROCHROMIC DEVICES

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Chinese Journal of Polymer Science 2008年第1期26卷 91-97页

作者： Gong, Yong-feng Fu, Xiang-kai Zhang, Shu-peng Jiang, Qing-Long SW Univ Coll Chem & Chem Engn Res Inst Appl Chem Chongqing 400715 Peoples R China Key Lab Appl Chem Chongqing Municipal Chongqing 400715 Peoples R China Minist Educ Key Lab Ecoenvironm Gorges Reservoir Reg 3 Chongqing 400715 Peoples R China

An amorphous,colorless,and highly transparent star network polymer with a pentaerythritol core linking four PEG-block polymeric arms was synthesized from the poly(ethylene glycol)(PEG),pentaerythritol,and dichloromethane by Williamson *** and ~1H-NMR measurement demonstrated that the polymer repeating units were C[CH_2-OCH_2O-(CH_2CH_2O)_m-CH_2O-(CH_2CH_2O)_n-CH_2O]_*** polymer host held well mechanical properties for pentaerythritol *** gel polymer electrolytes based on Lithium pe...

关键词： ionic conductivity Star network polymer Gel polymer electrolytes Electrochromic devices

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SYNTHESIS, CHARACTERIZATION AND ION TRANSPORT PROPERTIES OF HOT-PRESSED SOLID POLYMER ELECTROLYTES (1-x) PEO:x KI

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Chinese Journal of Polymer Science 2013年第2期31卷 302-308页

作者： Angesh Chandra Archana Chandra K. Thakur Department of Applied Physics Shri Shankaracharya Institute of Prof. Manag. & Tech.Raipur 492015 C.G. India Department of Applied Chemistry Raipur Institute of TechnologyRaipur 492101 C.G. India

Synthesis and ion transport properties of hot-pressed solid polymer electrolytes （SPEs）, （l-x） PEO： x KI, where x is the content of KI in wt%, are reported. A hot-press technique has been used for the formation of the polymeric membranes in place of the usual solution cast method. The composition （80 PEO：20 KI） was identified as the highest conducting polymer electrolyte on the basis of compositional dependent conductivity studies of PEO：KI films. A conductivity enhancement of more than two orders of magnitude from that of the pure PEO was achieved. Materials characterization and ion transport mechanism were explained by using various experimental techniques.

关键词： Solid polymer electrolyte Hot-press technique ionic conductivity ionic mobility XRD Polymeric battery.

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ionic liquid electrolytes for sodium-ion batteries to control thermal runaway

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Journal of Energy Chemistry 2023年第6期81卷 321-338,I0008页

作者： Keith Sirengo Aswathy Babu Barry Brennan Suresh C.Pillai Nanotechnology and Bio-Engineering Research Group Department of Environmental ScienceAtlantic Technological UniversityATU SligoAsh LaneSligo F91 YW50Ireland Health and Biomedical(HEAL)Strategic Research Centre Atlantic Technological UniversityATU SligoAsh LaneSligo F91 YW50Ireland

Sodium-ion batteries are expected to be more affordable for stationary applications than lithium-ion batteries,while still offering sufficient energy density and operational capacity to power a significant segment of the battery *** this,thermal runaway explosions associated with organic electrolytes have led to concerns regarding the safety of sodium-ion *** electrolytes,ionic liquids are promising because they have negligible vapor pressure and show high thermal and electrochemical *** review discusses the safety contributions of these electrolyte properties for high-temperature *** ionic liquids provide thermal stability while at the same time promoting high-voltage window battery ***,apart from cycle stability,there is an additional safety feature attributed to modified ultra-concentrated ionic liquid *** these contributions,the following have been discussed,heat sources and thermal runaway mechanisms,thermal stability,the electrochemical decomposition mechanism of stable cations,and the ionic transport mechanism of ultra-concentrated ionic liquid *** addition,the contributions of hybrid electrolyte systems consisting of ionic liquids with either organic carbonate or polymers are also *** thermal stability of ionic liquids is found to be the main contributor to cell safety and cycle *** high-temperature applications where electrolyte safety,capacity,and cycle stability are important,highly concentrated ionic liquid electrolyte systems are potential solutions for sodium-ion battery applications.

关键词： Thermal stability ionic liquids Sodium-ion batteries Cycle stability ionic conductivity

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The Critical Role of Fillers in Composite Polymer Electrolytes for Lithium Battery

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Nano-Micro Letters 2023年第5期15卷 339-375页

作者： Xueying Yang Jiaxiang Liu Nanbiao Pei Zhiqiang Chen Ruiyang Li Lijun Fu Peng Zhang Jinbao Zhao College of Energy Xiamen UniversityXiamen 361102People’s Republic of China State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Centre of Chemistry for Energy MaterialsState-Province Joint Engineering Laboratory of Power Source Technology for New Energy VehicleEngineering Research Center of Electrochemical TechnologyMinistry of EducationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005People’s Republic of China College of Energy Nanjing Technical UniversityNanjing 211816People’s Republic of China

With excellent energy densities and highly safe performance,solidstate lithium batteries(SSLBs)have been hailed as promising energy storage ***-state electrolyte is the core component of SSLBs and plays an essential role in the safety and electrochemical performance of the *** polymer electrolytes(CPEs)are considered as one of the most promising candidates among all solid-state electrolytes due to their excellent comprehensive *** this review,we briefly introduce the components of CPEs,such as the polymer matrix and the species of fillers,as well as the integration of fillers in the *** particular,we focus on the two major obstacles that affect the development of CPEs:the low ionic conductivity of the electrolyte and high interfacial *** provide insight into the factors influencing ionic conductivity,in terms of macroscopic and microscopic aspects,including the aggregated structure of the polymer,ion migration rate and carrier *** addition,we also discuss the electrode-electrolyte interface and summarize methods for improving this *** is expected that this review will provide feasible solutions for modifying CPEs through further understanding of the ion conduction mechanism in CPEs and for improving the compatibility of the electrode-electrolyte interface.

关键词： Composite polymer electrolytes Fillers ionic conductivity Electrode-electrolyte interface

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Synthesis and characterization of Dy-Eu-Tm co-doped cubic phase stabilized bismuth oxide based electrolytes in terms of intermediate temperature-solid oxide fuel cells(IT-SOFCs)

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Journal of Rare Earths 2023年第3期41卷 406-412,I0003页

作者： Ayhan Güldeste Mustafa Aldoori Murat Balci Mehmet Ari Yasin Polat Department of Physics Erciyes University38039KayseriTurkey Ministry of Higher Education and Scientific Research Allraqia University10011BaghdadIraq Science and Technology Application and Research Center Nevşehir HacıBektaşVeli University50300NevşehirTurkey

In this study,a new Dy-Eu-Tm co-doped cubic phase stabilized bismuth oxide solid electrolyte system was synthesized by using solid-state reaction method in atmospheric *** conductivity measurements,X-ray diffraction(XRD)pro files of the annealed samples show that created mixtures have heterogeneous phase,but after conductivity measurements,the face-centered cubic(FCC)crystal structure is stabilized for all ***,the increase in total dopant rate causes an increase in full width half maxima(FWHM)of main peak(111)on the XRD pattern while average crystal size decreases with *** the other hand,the highest conductivity value was obtained for the sample having 15%total dopant rate with 0.62 S/cm at 750℃,whose dopants are evenly distributed in mole *** thermal analysis(DTA)results of the samples having 1:1:1 and 1:2:1 dopant content ratios show that endothermic peak occurs on their DTA curve,indicating crystal structure transformation such as phase transition or order-disorder ***,thermo-gravimetric analysis(TGA)depending on temperature was evaluated in terms of mass *** to TGA curves,mass loss for both heating and cooling process can be negligible due to the small fluctuations(2%)on their TGA curves.

关键词： Solid electrolyte Order-disorder transition Phase transition ionic conductivity Activation energy Rare earths

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Rational Design of High-Performance PEO/Ceramic Composite Solid Electrolytes for Lithium Metal Batteries

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Nano-Micro Letters 2023年第6期15卷 155-189页

作者： Yanxia Su Fei Xu Xinren Zhang Yuqian Qiu Hongqiang Wang State Key Laboratory of Solidification Processing Centre for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityShaanxi Joint Laboratory of Graphene(NPU)Xi’an 710072People’s Republic of China

Composite solid electrolytes(CSEs)with poly(ethylene oxide)(PEO)have become fairly prevalent for fabricating high-performance solid-state lithium metal batteries due to their high Li~+solvating capability,flexible processability and low ***,unsatisfactory room-temperature ionic conductivity,weak interfacial compatibility and uncontrollable Li dendrite growth seriously hinder their *** efforts have been devoted to combining PEO with ceramics either as fillers or major matrix with the rational design of two-phase architecture,spatial distribution and content,which is anticipated to hold the key to increasing ionic conductivity and resolving interfacial compatibility within CSEs and between CSEs/***,a comprehensive review exclusively discussing the design,preparation and application of PEO/ceramic-based CSEs is largely lacking,in spite of tremendous reviews dealing with a broad spectrum of polymers and ***,this review targets recent advances in PEO/ceramicbased CSEs,starting with a brief introduction,followed by their ionic conduction mechanism,preparation methods,and then an emphasis on resolving ionic conductivity and interfacial ***,their applications in solid-state lithium metal batteries with transition metal oxides and sulfur cathodes are ***,a summary and outlook on existing challenges and future research directions are proposed.

关键词： Composite solid electrolytes ionic conductivity Interfacial compatibility Ion conduction pathways Li metal batteries

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Na_(3)Zr_(2)Si_(2)PO_(12) solid-state electrolyte with glass-like morphology for enhanced dendrite suppression

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Rare Metals 2022年第12期41卷 4086-4093页

作者： Hang Su Shi-Wei Zhang Yi-Meng Liu Chao Yang Li-Xiao Zhang Sen Xin Ya You State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China University of Chinese Academy of Sciences International School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

Rechargeable batteries based on solid-state electrolytes are of great interest and importance for the next-generation energy storage due to their high energy output and improved *** building the solid-state batteries,Na_(3)Zr_(2)Si_(2)PO_(12)(NZSP)represents a promising candidate as it features high chemical stability against air exposure and a high Na^(+)*** pellets were usually calcined at a high temperature,and the high volatility of Na and P elements easily led to the formation of impurity *** this work,the effects of calcination temperature and stoichiometry on the phase purity and ionic conductivity of the NZSP electrolyte were *** an elevated sintering temperature,the NZSP electrolyte showed a high ionic conductivity owing to decreased porosity,and the highest ionic conductivity at 30℃was observed to be 2.75×10^(-5)S·cm^(-1)with an activation energy of 0.41 *** the stoichiometry,the introduction of 5 mol%excessive P results in formation of more Na_(3)PO_(4) and glass-like phase at the grain boundary,which caused the blurred grain boundary and reduced grain barrier,and effectively suppressed Na dendrite growth,then accounted for improved cycling performance of a Na‖Na symmetric *** work provided insights on reasonable design and preparation of NZSP electrolyte towards practical realization of solid-state Na-metal batteries.

关键词： Na_(3)Zr_(2)Si_(2)PO_(12)(NZSP) Natrium superionic conductor(NASICON)solid-state electrolytes Grain boundary ionic conductivity Glass-like morphology

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Ester-based anti-freezing electrolyte achieving ultra-low temperature cycling for sodium-ion batteries

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Journal of Materials Science & Technology 2024年第15期182卷 111-118页

作者： Yi-Tong Liu Hao-Jie Liang Miao Du Jia-Lin Yang Zhen-Yi Gu Xiao-Tong Wang Yuan-Zheng Tang Jin-Zhi Guo Xing-Long Wu Faculty of Chemistry Northeast Normal UniversityChangchunJilin 130024China MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal UniversityChangchunJilin 130024China College of Electromechanical Engineering Qingdao University of Science and TechnologyQingdao 260061China

With the continuous advancement of industrialization,sodium-ion batteries(SIBs)need to operate in various challenging circumstances,particularly in extremely cold ***,at ultra-low tem-peratures,the reduced ionic conductivity and sluggish Na+migration of commonly carbonate-based elec-trolytes will inevitably lead to a sharp decrease in the capacity of ***,we design a carboxylate ester-based electrolyte with excellent ultra-low temperature performance by straightforward cosolvent *** to the low viscosity,melting point,and sufficient ionic conductivity of the designed elec-trolyte,the resulting Na||Na_(3)V_(2)(PO_(4))_(2)O_(2)F can achieve the capacity retention of 96%(100 cycles at 0.1 C)at-40℃ and can also operate stably even at-50℃.Besides,galvanostatic intermittent titration tech-nique(GITT),ex-situ X-ray photoelectron spectroscopy(XPS),and high-resolution transmission electron microscopy(TEM)tests are employed to analyze and confirm that the carboxylate ester-based electrolyte promotes robust and uniform cathode/electrolyte interface layer formation and accelerates ion diffusion kinetics,which collectively facilitates the better low-temperature *** addition,the assembled hard carbon||NVPOF full cells further prove the practicability of the carboxylate ester-based electrolyte at low-temperature,which delivers high discharge capacity of 108.4 and 73.0 mAh g^(-1) at-25 and-40℃.This work affords a new avenue for designing advanced low-temperature electrolytes for SIBs.

关键词： Sodium-ion batteries Ester-based electrolyte Ultra-low temperature Cathode electrolyte interface ionic conductivity

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