检索结果-南通市图书馆

Immobile polyanionic backbone enables a 900-μm-thick electrode for compact energy storage with unprecedented areal capacitance

引用

National Science Review 2024年第8期11卷 209-218页

作者： Haoran Li Zhitan Wu Xiaochen Liu Haotian Lu Weichao Zhang Fangbing Li Hongyuan Yu Jinyang Yu Boya Zhang Zhenxin Xiong Ying Tao Quan-Hong Yang Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy StorageSchool of Chemical Engineering and Technology National Industry-Education Integration Platform of Energy Storage and Collaborative Innovation Center of Chemical Science and Engineering Tianjin University Haihe Laboratory of Sustainable Chemical Transformations Joint School of the National University of Singapore and Tianjin University International Campus of Tianjin University

thickening of electrodes is crucial for maximizing the proportion of active components and thus improving the energy density of practical energy storage ***,trade-offs between electrode thickness and electrochemical performance persist because of the considerably increased ion transport resistance of thick ***,we propose accelerating ion transport through thick and dense electrodes by establishing an immobile polyanionic backbone within the electrode pores;and as a proof of concept,gel polyacrylic electrolytes as such a backbone are in situ synthesized for *** charge and discharge,protons rapidly hop among RCOO-sites for oriented transport,fundamentally reducing the effects of electrode tortuosity and polarization resulting from concentration ***,nearly constant ion transport resistance per unit thickness is achieved,even in the case of a 900-μm-thick dense electrode,leading to unprecedented areal capacitances of 14.85 F cm-2at 1 mA cm-2and 4.26 F cm-2at 100 mA *** study provides an efficient method for accelerating ion transport through thick and dense electrodes,indicating a significant solution for achieving high energy density in energy storage devices,including but not limited to supercapacitors.

关键词： gel polymer electrolyte thick electrode ion transport areal capacitance compact energy storage

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Advances in multi-scale design and fabrication processes for thick electrodes in lithium-ion batteries

引用

Energy Reviews 2024年第2期3卷 14-30页

作者： Xiuxue Liu Yubin Zeng Wei Yuan Guanhua Zhang Huai Zheng Zhongxue Chen Key Laboratory of Hydraulic Machinery Transients Ministry of EducationSchool of Power and Mechanical EngineeringWuhan UniversityWuhan430072China School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou510640GuangdongChina State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha410082China Greater Bay Area Institute for Innovation Hunan UniversityGuangzhou511300China

In the contemporary era,lithium-ion batteries have gained considerable attention in various industries such as 3C products,electric vehicles and energy storage systems due to their exceptional *** the rapid progress in the energy storage sector,there is a growing demand for greater energy density in lithium-ion *** the use of thick electrodes is a straightforward and effective approach to enhance the energy density of battery,it is hindered by the sluggish reaction dynamics and insufficient mechanical ***,we comprehensively review recent advances in the field of thick electrodes for lithium-ion batteries to overcome the bottlenecks in the development of thick electrodes and achieve efficient fabrication for high-performance lithium-ion ***,a systematic analysis is performed to identify the factors affecting the performance of the thick *** correlation between electrode materials,structural parameters,and performance is also ***,the viable strategies for constructing thick electrodes with improved properties are summarize,including high throughput,high conductivity and low tortuosity,in both material development and structural *** addition,recent advances in efficient fabrication methods for thick electrode fabrication are reviewed,with a comprehensive assessment of their merits,limitations,and applicable ***,a comprehensive overview of the multiscale design and manufacturing process for thick electrodes in lithium-ion batteries is provided,accompanied by valuable insights into design considerations that are crucial for future advances in this area.

关键词： Lithium-ion battery thick electrode High energy density electrode structure Multi-scale design Material development

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

纤维素纳米片辅助的高导电厚电极的成膜工艺研究

引用

Science China Materials 2024年第2期67卷 672-679页

作者：杜治辰王汉伟符金洲翟春孙庆丰翟天佑李会巧 State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074China School of Engineering Zhejiang A&F UniversityHangzhou 311300China School of Materials Engineering Changshu Institute of TechnologyChangshu 215500China Shenzhen Research Institute of Huazhong University of Science and Technology Shenzhen 518063China

厚电极技术能在不改变电池内部物质/组分/系统配置的情况下,有效提高电池能量密度,因此备受业界关注.然而,缓慢的电荷转移动力学和较差的机械稳定性,阻碍了其实际应用.在此,我们提出了一种由纤维素纳米片辅助的湿法制膜工艺实现了高导... 详细信息

厚电极技术能在不改变电池内部物质/组分/系统配置的情况下,有效提高电池能量密度,因此备受业界关注.然而,缓慢的电荷转移动力学和较差的机械稳定性,阻碍了其实际应用.在此,我们提出了一种由纤维素纳米片辅助的湿法制膜工艺实现了高导电、高负载厚电极的制备.二维结构纤维素纳米片的高表面积、丰富的官能团和优异的机械性能等独特的性质可以促使电极中的导电剂均匀分布,从而在电极内部构建一个三维连续的快速导电网络,同时纤维素片的存在赋予电极良好的力学性能,厚度提升到300μm而不开裂.以此制得的LiCoO_(2)厚电极在50 mg cm-2的高质量负载下循环,可以实现比干电极高6倍的容量保持率.

关键词： lithium-ion batteries thick electrode nanosheet cellulose solution process

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

3D printing CO_(2)-activated carbon nanotubes host to promote sulfur loading for high areal capacity lithium-sulfur batteries

引用

Nano Research 2023年第6期16卷 8281-8289页

作者： Haiyan Chen Jingfeng Liu Wanqiu Cao Hanna He Xiaolong Li Chuhong Zhang State Key Laboratory of Polymer Materials Engineering Polymer Research InstituteSichuan UniversityChengdu 610065China

Lithium-sulfur batteries(LSBs)have emerged as a promising high energy density system in miniaturized energy storage ***,serious issues rooted in large volume change(80%),poor intrinsic conductivity,“shuttle effect”of S cathode,and limited mass loading of traditional electrode still make it a big challenge to achieve high energy density LSBs in a limited ***,an innovative carbon dioxide(CO_(2))assisted three-dimensional(3D)printing strategy is proposed to fabricate threedimensional lattice structured CO_(2)activated single-walled carbon nanotubes/S composite thick electrode(3DP S@CNTs-CO_(2))for high areal capacity *** 3D lattice structure formed by interwoven CNTs and printed regular macropores can not only act as fast electron transfer networks,ensuring good electronic conductivity of thick electrode,but is beneficial to electrolyte infiltration,effectively boosting ion diffusion kinetics even under a high-mass *** addition,the subsequent hightemperature CO_(2)in-situ etching can induce abundant nanopores on the wall of CNTs,which significantly promotes the sulfur loading as well as its full utilization as a result of shortened ion diffusion *** to these merits,the 3DP S@CNTs-CO_(2)electrode delivers an impressive mass loading of 10 mg·cm^(−2).More importantly,a desired attribute of linearly scale up in areal capacitance with increased layers is observed,up to an outstanding value of 5.74 mAh·cm^(−2),outperforming most reported LSBs that adopt strategies that physically inhibit *** work provides a thrilling drive that stimulates the application of LSBs in new generation miniaturized electronic devices.

关键词： lithium-sulfur battery three-dimensional(3D)printing CO_(2)-activation thick electrode high areal capacity

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

Boosted Storage Kinetics in thick Hierarchical Micro-Nano Carbon Architectures for High Areal Capacity Li-Ion Batteries

引用

Energy & Environmental Materials 2022年第4期5卷 1251-1259页

作者： Yang Wu Ting Ouyang Tuzhi Xiong Zhao Jiang Yuwen Hu Jianqiu Deng Zhongmin Wang Yongchao Huang M.-Sadeeq(Jie Tang)Balogun College of Materials Science and Engineering Hunan UniversityChangsha 410082China Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan UniversityChangsha 410082China School of Chemistry Sun Yat-sen UniversityGuangzhou 510275China Institute of Environmental Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006China Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan UniversityChangsha 410082China School of Materials Science and Engineering Guilin University of Electronic TechnologyGuilin 541004China Guangxi Key Laboratory of Information Materials Guilin University of Electronic TechnologyGuilin 541004China

A practical and effective approach to increase the energy storage capacity of lithium ion batteries(LIBs)is to boost their areal *** thick electrodes is one of the most crucial ways to achieve high areal capacity but limited by sluggish ion/electron transport,poor mechanical stability,and high-cost manufacturing *** we address these constraints by engineering a unique hierarchical-networked 10 mm thick all-carbon electrode,providing a scalable strategy to produce high areal capacity LIB *** hierarchical-networked structure utilizes micrometer-sized carbon fibers(MCFs)as building blocks,nano-sized carbon nanotubes(CNTs)as good continuous network with excellent electrical conductivity,and pyrolytic carbon as the binder and active material with excellent storage *** combination of the above features endows our HNT-MCF/CNT/PC electrode with excellent performance including high reversible capacity of 15.44 mAh cm^(-2) at 2.0 mA cm^(-2) and exhibits excellent rate capability of 2.50 mAh cm^(-2) under 10.0 mA cm^(-2) current *** Li-ion storage mechanism in HNT-MCF/CNT/PC involves dual-storage mechanism including intercalation and surface adsorption(pseudocapacitance)confirmed by the cyclic voltammetry and symmetric cell *** work provides insights into the construction of high mechanical stability thick electrode for the next generation high areal capacity LIBs and beyond.

关键词： dual storage mechanism high-areal-capacity micro-nano carbon architecture rapid kinetics and high mechanical stability thick electrode

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

High‑Mass‑Loading electrodes for Advanced Secondary Batteries and Supercapacitors

引用

Electrochemical Energy Reviews 2021年第2期4卷 382-446页

作者： Feng Wu Mingquan Liu Ying Li Xin Feng Kun Zhang Ying Bai Xinran Wang Chuan Wu School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

The growing demand for advanced electrochemical energy storage systems(EESSs)with high energy densities for electric vehicles and portable electronics is driving the electrode revolution,in which the development of high-mass-loading electrodes(HMLEs)is a promising route to improve the energy density of batteries packed in limited spaces through the optimal enlargement of active material loading ratios and reduction of inactive component ratios in overall cell ***,HMLEs face significant challenges including inferior charge kinetics,poor electrode structural stability,and complex and expensive production *** on this,this review will provide a comprehensive summary of HMLEs,beginning with a basic presentation of factors influencing HMLE electrochemical properties,the understanding of which can guide optimal HMLE *** strategies to improve the electrochemical performance of HMLEs accompanied by corresponding advantages and bottlenecks are subsequently discussed in terms of various factors ranging from inactive component modification to active material design to structural engineering at the electrode *** review will also present the recent progress and approaches of HMLEs applied in various EESSs,including advanced secondary batteries(lithium-/sodium-/potassium-/aluminum-/calcium-ion batteries,lithium metal anodes,lithium-sulfur batteries,lithium-air batteries,zinc batteries,magnesium batteries)and ***,this review will examine the challenges and prospects of HMLE commercialization with a focus on thermal safety,performance evaluation,advanced characterization,and production cost assessment to guide future development.

关键词： High mass loading thick electrode High energy density Advanced secondary battery Supercapacitor

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

Nature-inspired porous multichannel carbon monolith:Molecular cooperative enables sustainable production and high-performance capacitive energy storage

引用

InfoMat 2021年第10期3卷 1154-1170页

作者： Mingquan Liu Feng Wu Lumin Zheng Xin Feng Ying Li Yu Li Ying Bai Chuan Wu School of Materials Science and Engineering Beijing Institute of TechnologyBeijingPeople's Republic of China Yangtze Delta Region Academy of Beijing Institute of Technology JiaxingPeople's Republic of China

The advancement of supercapacitors(SCs)is closely bound up with the breakthrough of rational design of energy *** and thick carbon(FTC)materials with well-organized porous structure is promising SC electrode delivering high areal capacitive ***,controllable and sustainable fabrication of such FTC electrode is still of great *** by natural honeycombs with cross-linked multichannel structure,herein,an innovative molecular-cooperative-interaction strategy is elaborately provided to realize honeycomb-like FTC *** nitrogen-doped porous carbon monolith(N-PCM)is obtained with advantages of interconnect pore structure and abundant nitrogen *** strategy is based on naturally abundant molecular precursors,and free of pore-templates,expensive polymerization catalyst,and dangerous reaction solvent,rendering it a sustainable and cost-effective *** control experiments reveal that strong interactions among molecular precursors promise the structural stability of N-PCM during carbonization,and rational selection of molecular precursors with chemical blowing features is key step for well-developed honeycomb-like pore ***,the optimized sample exhibits hierarchical pore structure with specific surface area of 626.4 m^(2)g^(-1)and rational N-doping of 7.01 wt%.The derived SC electrode with high mass loading of 40.1 mg cm^(-2)shows an excellent areal capacitance of 3621 mF cm^(-2)at 1 mA cm^(-2)and good rate performance with 2920 mF cm^(-2)at 25 mA cm^(-2).Moreover,the constructed aqueous symmetric SC and quasi-solid-state SC produce high energy densities of 0.32 and 0.27 mWh cm^(-2),*** believe that such a composition/microstructure controllable method can promote the fabrication and development of other thick electrodes for energy storage devices.

关键词： carbon monolith freestanding high mass loading molecular cooperative supercapacitors thick electrode

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

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

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

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：