检索结果-南通市图书馆

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

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

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Inhibition of lithium dendrites and dead lithium by an ionic liquid additive toward safe and stable lithium metal anodes

引用

Chinese Chemical Letters 2022年第8期33卷 3951-3954页

作者： Shengjie Zhang Bin Cheng Yanxiong Fang Dai Dang Xin Shen Zhiqiang Li Ming Wu Yun Hong Quanbing Liu Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong Provincial Key Laboratory of Plant Resources BiorefinerySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China Department of Chemical Engineering Beijing Key Laboratory of Green Chemical Reaction Engineering and TechnologyTsinghua UniversityBeijing 100084China

The uncontrolled growth of lithium dendrites and accumulation of"dead lithium"upon cycling are among the main obstacles that hinder the widespread application of lithium metal ***,an ionic liquid(IL)consisting of 1-methyl-1-propylpiperidinium cation(Pp_(13)^+) and bis(fluorosulfonyl)imide anion(FSI^(-)),was chosen as the additive in propylene carbonate(PC)-based liquid electrolytes to circumvent the shortcoming of lithium metal *** optimal 1%Pp_(13) FSI acts as the role of electrostatic shielding,lithiophobic effect and participating in the formation of solid electrolyte interface(SEI)layer with enhanced *** in-situ optical microscopy records that the addition of IL can effectively inhibit the growth of lithium dendrites and the corrosion of lithium *** study delivers an effective modification to optimize electrolytes for stable lithium metal batteries.

关键词： Ionic liquid Piperidinium lithium metal anode Solid electrolyte interface lithium dendrites Dead lithium

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Touch Ablation of lithium dendrites via Liquid Metal for High-Rate and Long-Lived Batteries

引用

CCS Chemistry 2021年第1期3卷 686-695页

作者： Wenjie Wang Xiaohui Zhu Lei Fu College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072 The Institute for Advanced Studies(IAS) Wuhan UniversityWuhan 430072

High energy density lithium(Li)metal batteries have attracted great attention,but they are faced with challenges of cycling instability and safety *** to high activity and drastic volume changes of metallic Li,potential dendritic risks cannot be fully ***,suppressing already existing Li dendrites must be *** addition,Li-active solids alloying with Li always face mechanical instability and fractures with ***,we present touch ablation of dendrites by liquid metal,namely forming a defense layer on the electrode to directly react with the ***,supercooling,and other liquid characteristics make the liquid gallium(Ga)exhibit continuous and reversible reactions with *** unique layout with a hierarchical porous structure inhibits upward growth of the *** protected Li||Li cells achieve stable cyclic performance even at 10 mA cm^(–2)and a large capacity of 5 mA h cm^(-2).

关键词： lithium metal batteries lithium dendrites liquid metal long-lived batteries protective layer

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Interpenetrating network-reinforced gel polymer electrolyte for ultra-stable lithium−iodine batteries

引用

Carbon Energy 2024年第6期6卷 234-247页

作者： Ying Jiang Peng Huang Minman Tong Bingxin Qi Tao Sun Zhongyun Xian Wen Yan Chao Lai School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhouJiangsuChina

Li-I2 batteries have attracted much interest due to their high capacity,exceptional rate performance,and low *** so,the problems of unstable Li anode/electrolyte interface and severe polyiodide shuttle in Li-I2 batteries need to be ***,the interfacial reactions on the Li anode and I2 cathode have been effectively optimized by employing a well-designed gel polymer electrolyte strengthened by cross-linked Ti-O/Si-O(GPETS).The interpenetrating network-reinforced GPETS with high ionic conductivity(1.88×10^(-3)S cm^(-1)at 25℃)and high mechanical strength endows uniform Li deposition/stripping over 1800 h(at 1.0mA cm^(-2),with a plating capacity of 3.0mAh cm^(-2)).Moreover,the GPETS abundant in surface hydroxyls is capable of capturing soluble polyiodides at the interface and accelerating their conversion kinetics,thus synergistically mitigating the shuttle *** from these properties,the use of GPETS results in a high capacity of 207 mAh g^(-1)(1 C)and an ultra-low fading rate of 0.013%per cycle over 2000 cycles(5 C).The current study provides new insights into advanced electrolytes for Li-I2 batteries.

关键词： electrode/electrolyte interface gel polymer electrolytes lithium dendrites lithium−iodine batteries polyiodide shuttle

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Multifunctional SnO_(2) QDs/MXene Heterostructures as Laminar Interlayers for Improved Polysulfide Conversion and lithium Plating Behavior

引用

Nano-Micro Letters 2024年第11期16卷 156-169页

作者： Shungui Deng Weiwei Sun Jiawei Tang Mohammad Jafarpour Frank Nüesch Jakob Heier Chuanfang Zhang College of Materials Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China Laboratory for Functional Polymers Swiss Federal Laboratories for Materials Science and Technology(EMPA)Überlandstrasse 1298600 DübendorfSwitzerland Institute of Materials Science and Engineering Ecole Polytechnique Fédérale de Lausanne(EPFL)Station 121015 LausanneSwitzerland Key Laboratory of Quantum Materials and Devices of Ministry of Education School of PhysicsSoutheast UniversityNanjing 211189People’s Republic of China SEU‑FEI Nano‑Pico Center Key Laboratory of MEMS of Ministry of EducationSoutheast UniversityNanjing 210096People’s Republic of China

Poor cycling stability in lithium–sulfur(Li–S)batteries necessitates advanced electrode/electrolyte design and innovative interlayer *** catalysis has emerged as a promising approach,leveraging the adsorption and catalytic performance on lithium polysulfides(LiPSs)to inhibit LiPSs shuttling and improve redox *** this study,we report an ultrathin and laminar SnO_(2)@MXene heterostructure interlayer(SnO_(2)@MX),where SnO_(2) quantum dots(QDs)are uniformly distributed across the MXene *** combined structure of SnO_(2) QDs and MXene,along with the creation of numerous active boundary sites with coordination electron environments,plays a critical role in manipulating the catalytic kinetics of sulfur *** Li–S cell with the SnO_(2)@MX-modified separator not only demonstrates superior electrochemical performance compared to cells with a bare separator but also induces homogeneous Li deposition during *** a result,an areal capacity of 7.6 mAh cm^(-2) under a sulfur loading of 7.5 mg cm^(-2) and a high stability over 500 cycles are *** work demonstrates a feasible strategy of utilizing a laminar separator interlayer for advanced Li–S batteries awaiting commercialization and may shed light on the understanding of heterostructure catalysis with enhanced reaction kinetics.

关键词： lithium-sulfur battery Heterogeneous catalysis Heterostructure Redox kinetics lithium dendrites

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Full-chain enhanced ion transport toward stable lithium metal anodes

引用

Journal of Energy Chemistry 2023年第4期79卷 390-397页

作者： Yuliang Gao Fahong Qiao Nan Li Jingyuan You Yong Yang Jun Wang Chao Shen Ting Jin Xi Li Keyu Xie State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an 710072ShaanxiChina School of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021Inner MongoliaChina Department of Applied Physics The Hong Kong Polytechnic UniversityHong Kong 999077China Shanghai Key Lab of Advanced High-temperature Materials and Precision Forming Shanghai Jiao Tong UniversityShanghai 200240China

The dendrite growth that results from the slow electrode process kinetics prevents the lithium(Li) metal anode from being used in practical applications. Here, full-chain enhanced ion transport for stabilizing Li metal anodes is proposed. Experimental and theoretical studies confirm that full-chain enhanced ion transport(electrocrystallization, mass transport in the electrolyte and diffusion in solid electrolyte interphase) under magnetoelectrochemistry contributes to a homogeneous, dense, and dendrite-free morphology. Specifically, the enhanced electrocrystallization behavior promotes the Li nucleation;the enhanced mass transport in the electrolyte alleviates the ion concentration gradient at the electrode surface, which helps to inhibit dendrite growth;and the enhanced diffusion in the solid electrolyte interphase further homogenizes the Li deposition behavior, obtaining regular and uniform Li ***, the Li metal anode has exceptional cycling stability in both symmetric and full cells,and the pouch cell performs long cycles(170 cycles) in practice evaluation. This work advances fundamental knowledge of the magneto-dendrite effect and offers a new perspective on stabilizing metal anodes.

关键词： lithium metal anodes Ion transport Pouch cell lithium dendrites Magnetic field

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Dead lithium formation in lithium metal batteries:A phase field model

引用

Journal of Energy Chemistry 2022年第8期31卷 29-35,I0002页

作者： Rui Zhang Xin Shen Yu-Tong Zhang Xia-Lin Zhong Hao-Tian Ju Tian-Xiao Huang Xiang Chen Jun-Dong Zhang Jia-Qi Huang Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

lithium metal batteries are the most promising choices for next-generation high-energy–density batteries. However, there is little mechanism understanding on lithium dendrite growth during lithium plating and the dead lithium(the main component of inactive lithium) formation during lithium stripping. This work proposed a phase field model to describe the lithium stripping process with dead lithium *** coupling of galvanostatic conditions enables the phase field method to accurately match experimental results. The factors influencing the dead lithium formation on the increasing discharge polarization are revealed. Besides, the simulation of the battery polarization curve, the capacity loss peak, and the Coulomb efficiency is realized. This contribution affords an insightful understanding on dead lithium formation with phase field methods, which can contribute general principles on rational design of lithium metal batteries.

关键词： lithium metal batteries lithium metal anodes lithium dendrites Dead lithium lithium stripping Phase field methods Finite element methods

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Highly crystalline vinylene-linked covalent organic frameworks enhanced solid polycarbonate electrolyte for dendrite-free solid lithium metal batteries

引用

Nano Research 2022年第9期15卷 8083-8090页

作者： Kaige Zhang Chaoqun Niu Chengbing Yu Li Zhang Yuxi Xu School of Materials and Engineering Zhengzhou UniversityZhengzhou 450001China School of Engineering Westlake UniversityHangzhou 310024China School of Materials Science and Engineering Shanghai UniversityShanghai 201800China

The development of solid-state electrolytes(SSEs)with high ionic conductivity,outstanding electrochemical window,and promising mechanical strength is a key factor in realizing the commercialization of high energy density solid-state lithium metal batteries(LMBs).Covalent organic frameworks(COFs)are a functional crystalline material with highly customizable molecular networks and one-dimensional channel structures,thus showing great potential applications in ***,we design flexible COF-poly(vinyl ethylene carbonate)(PVEC)(abbreviated as COF-PVEC)composite electrolyte films with excellent ionic conductivity and high mechanical strength,enabling dendrite-free and long-term running solid-state *** to the lithiumphilic triazine and carbon–carbon double bonds groups in the COF skeleton,the obtained flexible COF-PVEC shows high ionic conductivity up to 1.11×10^(−4)S·cm^(−1)at 40℃,and enlarged electrochemical window up to 4.6 V(***^(+)/Li)compared with pure PVEC *** the same time,the lithium dendrites are efficiently inhibited after discharge–charging cycles,due to the improved Young’s modulus(150 MPa)and ordered channels of *** the various features of COF-PVEC,we assembled a solid-state full battery with LiFePO4 cathode,which showed superior rate capacity(151.8,146.2,139.2,128.1,113.7,and 100.8 mAh·g^(−1)at 0.1,0.2,0.5,1,1.5,and 2 C,respectively)and excellent long-term cycling stability(over 400 cycles at 1 C).We believe that the COF-based composite electrolyte can become one of the most promising high-performance SSEs for solid-state LMBs.

关键词： solid-state electrolytes covalent organic frameworks lithium dendrites solid-state lithium metal batteries

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Silicon-carbide fiber-reinforced polymer electrolyte for all-solid-state lithium-metal batteries

引用

Rare Metals 2022年第11期41卷 3774-3782页

作者： Wen-Qing Wei Bing-Qiang Liu Yan-Qing Wang Kai Yan Hao Zhang Yu-Song Qi School of Mechanical and Automation Weifang UniversityWeifang261061China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo315201China College of Mechanical and Electronic Engineering Shandong University of Science and TechnologyQingdao266590China School of Mechanical and Electrical Weifang University of Science and TechnologyShouguang262700China

Silicon carbide(SiC) with various morphologies was employed as reinforcing fillers for poly(ethylene oxide)(PEO)-based solid polymer electrolytes(SPEs).Specific ally,the SiC nanoparticles with an average size of 5-10 μm endow a significant enhancement of the interaction between carbon atoms for the fillers and the oxygen atoms from the PEO-lithium bis(trifluoromethanesulfonyl)imide(LiTFSI) matrix,which provides rapid transport channels for mobile Li+and enhances the mechanical strength of *** SPEs reinforced with one-dimensional SiC nanoparticles exhibit superior Li^(+)conduction,good mechanical property,and uniform Li ***,a dendrite-free plating of lithium for 0.58 mAh at 0.1 mA·cm^(-2) and excellent cycle stability at various current densities for 250 h are achieved in Li/Li symmetric cells using SPEs electrolytes with 5.0 wt% SiC ***,the LiFePO_(4)/Li full cells assembled using SPEs electrolytes with 5.0 wt% SiC nanoparticles provide a capacity of 151.5 mAh·g^(-1) at 0.1 mA·cm^(-2)(55℃),and maintained a Coulombic efficiency of 99% for 120 cycles.

关键词： All-solid-state batteries Polymer electrolyte Ionic conductivity Mechanical property lithium dendrites

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A flame retardant separator modified by MOFs-derived hybrid for safe and efficient Li-S batteries

引用

Journal of Energy Chemistry 2022年第1期31卷 372-384,I0010页

作者： Na Wu Junling Wang Can Liao Longfei Han Lei Song Yuan Hu Xiaowei Mu Yongchun Kan State Key Laboratory of Fire Science.CAS Key Laboratory of Soft Matter Chemistry University of Science and Technology of ChinaHefei 230026AnhuiChina Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control College of Safety Science and EngineeringNanjing Tech UniversityNanjing 211816JiangsuChina

In this work,we have successfully prepared a novel separator modified with N,S co-doped carbon framework(named NSPCF)with confined CoS_(2) nanoparticles and rooted carbon nanotubes material(named NSPCF@CoS_(2))to apply for high-performance lithium-Sulfur batteries(Li-S batteries).Robust carbon structure with large specific surface can act as a physical barrier and possess physical adsorption effect on lithium polysulfides(LiPSs).In addition,highly-conductive carbon can improve integral conductivity,leading to the fast charge transport and reaction ***,doping heteroatoms could form more active sites to adsorb LiPSs strongly so that modified separator could inhibit the shuttle effect ***,the presence of CoS_(2) further enhances the ability of modified separator to trap LiPSs owing to the Lewis acid-base *** a result,the NSPCF@CoS_(2)@C-150 battery can deliver initial discharge capacities of 863.0,776.2,649.1 and 489.4 mAh g^(-1) at 0.1,0.5,1 and 2C with a high sulfur loading of 2.04 mg cm^(-2),***,when turning the current density back to 0.1 C,its discharge capacity can recover to 1008.7 mAh g^(-1).In addition,the modified separators exhibit outstanding capacities to restrain the growth of lithium *** is noteworthy that the flame retardant performances of Li-S batteries are improved dramatically owing to the novel structures of modified *** rationally designed separator endows Li-S batteries with higher safety and excellent electrochemical performances,providing a feasible strategy for practical application of Li-S batteries.

关键词： Metal-organic frameworks Shuttling behavior lithium dendrites Safety

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：