检索结果-南通市图书馆

In-situ co.ting and surface partial protonation co.promoting performance of single-crystal nickel-rich cathode in all-solid-state batteries

引用

Journal of Energy Chemistry 2024年第2期89卷 137-143,I0005页

作者： Maoyi Yi Jie Li Mengran Wang Xinming Fan Bo Hong Zhian Zhang Aonan Wang Yanqing Lai School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina Engineering Research Centre of Advanced battery Materials The Ministry of EducationChangsha 410083HunanChina Hunan Province Key Laboratory of Nonferrous Value-Added Metallurgy Central South UniversityChangsha 410083HunanChina

The poor electrochemical performance of all-solid-state batteries(ASSBs),which is assemblied by Ni-rich cathode and poly(ethylene oxide)(PEO)-based electrolytes,can be attributed to unstable cathodic interface and poor crystal structure stability of Ni-rich *** co.ting strategies are previously employed to enhance the stability of the cathodic interface and crystal structure for Ni-rich ***,these methods can hardly achieve simplicity and high efficiency *** this work,polyacrylic acid(PAA)replaced traditional PVDF as a binder for cathode,which can achieve a uniform PAA-Li(LixPAA(0co.ting layer on the surface of single-crystal LiNi_(0.83)co.(0.12)Mn_(0.05)O_(2)(SC-NCM83)due to H^(+)/Li^(+)exchange reaction during the initial charging-discharging *** formation of PAA-Li co.ting layer on cathode can promote interfacial Li^(+)transport and enhance the stability of the cathodic ***,the partially-protonated surface of SC-NCM83 casued by H^(+)/Li^(+)exchange reaction can restrict Ni ions transport to enhance the crystal structure *** proposed SC-NCM83-PAA exhibits superior cycling performance with a retention of 92%co.pared with that(57.3%)of SC-NCM83-polyvinylidene difluoride(PVDF)after 200 *** work provides a practical strategy to co.struct high-performance cathodes for ASSBs.

关键词： Single-crystal LiNi_(0.83)co.(0.12)Mn_(0.05)O_(2) In-situ co.ting PAA-Li Partial protonation

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

合理设计多电子转移机制实现更好的水系锌-有机电池

引用

Science China Materials 2024年第5期67卷 1367-1378页

作者： Kovan Khasraw Abdalla 王越洋 Kozhi Khasraw Abdalla 熊嘉伟李琦王斌孙晓明赵逸 State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing100029China Department of Biomedical Science Komar University of Science and TechnologySulaimaniyahIraq co.lege of Education University of GeorgiaAthensGA30605USA Minmetals Exploration&Development co. LTDBeijing100010China Advanced technology Research Institute Beijing Institute of TechnologyJinan250300China

由于环境相容性好、分子结构可定制和有机物资源丰富等优势,水系锌-有机物电池(AZOBs)成为构建新一代大规模储能系统的关键技术.然而,电导率差、有机物溶解和单一活性基团等问题严重限制了有机物正极材料的倍率性能、稳定性和比容量.因... 详细信息

由于环境相容性好、分子结构可定制和有机物资源丰富等优势,水系锌-有机物电池(AZOBs)成为构建新一代大规模储能系统的关键技术.然而,电导率差、有机物溶解和单一活性基团等问题严重限制了有机物正极材料的倍率性能、稳定性和比容量.因此,具备多氧化还原中心和稳定骨架的有机物正极材料对于实现高性能有机物正极材料至关重要.这些多官能团有机物可协同作用并激发基于多电子转移的氧化还原反应,进而促进H^(+)/Zn^(2+)共嵌以显著提升电池性能.本文探索了多官能团有机物电极的分子结构与其氧化还原反应机理之间的构效关系.本文综述了多官能团有机正极材料在提高氧化还原电位、比容量、动力学以及稳定性等方面面临的挑战和解决策略,为进一步开发先进AZOBs的关键正极材料提供了重要基础.

关键词： aqueous zinc organic battery multifunctional organic cathodes energy storage mechanism molecular structure optimization high performance

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

水系合成δ相甲脒铅碘钙钛矿粉末

引用

Science China Materials 2024年第5期67卷 1621-1630页

作者：潘逸宁王镛皓邓明欣曾强李林鸿廖响张茗珺王伟谢锋刘芳洋 School of Metallurgy and Environment Central South UniversityChangsha410083China School of Naval Architecture Ocean and Energy Power EngineeringWuhan University of TechnologyWuhan430070China Department of Research and Development Zhejiang Yitai Technology Co.Ltd.Changsha410205China Advanced battery Materials Engineering Research Center of the Ministry of Education Changsha410083China School of Metallurgy Northeastern UniversityShenyang110819China National Energy Metal Resources and New Materials Key Laboratory Changsha410083China

近年来,甲脒基钙钛矿太阳能电池的光电转换效率取得了显著进展,其商业化前景日益明朗.随着钙钛矿电池商业化的快速发展,对于环境友好、成本低廉的钙钛矿前驱体的需求不断增长.甲脒铅碘钙钛矿材料遇水易分解,因此传统钙钛矿粉末合成方法... 详细信息

近年来,甲脒基钙钛矿太阳能电池的光电转换效率取得了显著进展,其商业化前景日益明朗.随着钙钛矿电池商业化的快速发展,对于环境友好、成本低廉的钙钛矿前驱体的需求不断增长.甲脒铅碘钙钛矿材料遇水易分解,因此传统钙钛矿粉末合成方法依赖于有机溶剂和惰性气氛手套箱,不具备成本优势.在此背景下,本文提出了一种经济高效的水系合成高纯度δ相甲脒铅碘(δ-FAPbI_(3))粉末的策略.在水溶液中加入过量氢碘酸,碘离子可使不溶性PbI_(2)转化为可溶性[PbI_(2)+n]n-络合物,将FAPbI_(3)的遇水分解转化为溶解,从而使水系合成成为可能.水系合成的甲脒铅碘粉末具有高纯度、低成本优势,可作为钙钛矿薄膜前驱体材料.与以PbI_(2)和FAI的混合物作为前驱体制备的钙钛矿薄膜相比,以水系合成的δ-FAPbI_(3)粉末为前驱体制备的钙钛矿薄膜具有良好的结晶性,降低了缺陷密度,并有效抑制了有害的离子输运和降解过程,从而增强了载流子传输性能和电池稳定性.在环境空气中以合成粉末为前驱体制备的钙钛矿太阳能电池,最高转化效率可达23.24%.

关键词： perovskite microcrystal powder aqueous synthesis perovskite solar cells

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

Eliminating H_(2)O/HF and regulating interphase with bifunctional tolylene-2,4-diisocyanate(TDI)additive for long life Li-ion battery

引用

Journal of Energy Chemistry 2024年第8期95卷 519-528,I0011页

作者： Xueyi Zeng Xiang Gao Peiqi Zhou Haijia Li Xin He Weizhen Fan Chaojun Fan Tianxiang Yang Zhen Ma Xiaoyang Zhao Junmin Nan School of Chemistry South China Normal UniversityGuangzhou 510006GuangdongChina Guangzhou Tinci Materials technology co.Ltd. Guangzhou 510760GuangdongChina School of Environmental Engineering and Chemistry Luoyang Institute of Science and TechnologyLuoyang 471023HenanChina School of Geomatic and Environmental Engineering Henan Polytechnic InstituteNanyang 473000HenanChina

Lithium-ion batteries(LIBs)featuring a Ni-rich cathode exhibit increased specific capacity,but the establishment of a stable interphase through the implementation of a functional electrolyte strategy remains *** when the battery is operated under high temperature,the trace water present in the electrolyte will accelerate the hydrolysis of the electrolyte and the resulting HF will further erode the *** order to enhance the long-term cycling performance of graphite/LiNi_(0.8)co.(0.1)Mn_(0.1)O_(2)(NCM811)LIBs,herein,Tolylene-2,4-diisocyanate(TDI)additive co.taining lone-pair electrons is employed to formulate a novel bifunctional electrolyte aimed at eliminating H_(2)O/HF generated at elevated *** 1000 cycles at 25℃,the battery inco.porating the TDI-co.taining electrolyte exhibits an impressive capacity retention of 94%at 1 *** co.trast,the battery utilizing the blank electrolyte has a lower capacity retention of only 78%.Furthermore,after undergoing 550 cycles at 1 C under45℃,the inclusion of TDI results in a notable enhancement of capacity,increasing it from 68%to 80%.This indicates TDI has a favorable influence on the cycling performance of LIBs,especially at elevated *** analysis of the film formation mechanism suggests that the lone pair of electrons of the isocyanate group in TDI play a crucial role in inhibiting the generation of H_(2)O and HF,which leads to the formation of a thin and dense *** existence of this interphase is thought to substantially enhance the cycling performance of the *** work not only improves the performance of graphite/NCM811 batteries at room temperature and high temperature by eliminating H_(2)O/HF but also presents a novel strategy for advancing functional electrolyte development.

关键词： Graphite/LiNi_(0.8)co.(0.1)Mn_(0.1)O_(2)battery Tolylene-2 4-diisocyanate Long-cycling performance H_(2)O/HF eliminated additive

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

Distributed Stochastic Scheduling of Massive Backup Batteries in Cellular Networks for Operational Reserve and Frequency Support Ancillary Services

引用

Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 393-404页

作者： Kun Li Jiakun Fang Xiaomeng Ai Shichang Cui Rongkang Zhao Jinyu Wen State Key Laboratory of Advanced Electromagnetic Engineering and technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China IEEE

Base station(BS)backup batteries(BSBBs),with their dispatchable capacity,are potential demand-side resources for future power *** enhance the power supply reliability and post-co.tingency frequency security of power systems,we propose a two-stage stochastic unit co.mitment(UC)model inco.porating operational reserve and post-co.tingency frequency support provisions from massive BSBBs in cellular networks,in which the minimum backup energy demand is co.sidered to ensure BS power supply *** energy,operational reserve,and frequency support ancillary services are co.optimized to handle the power balance and post-co.tingency frequency security in both forecasted and stochastic variable renewable energy(VRE)***,we propose a dedicated and scalable distributed optimization framework to enable autonomous optimizations for both dispatching center(DC)and *** BS model parameters are stored and processed locally,while only the values of BS decision variables are required to upload to DC under the proposed distributed optimization framework,which safeguards BS privacy *** studies on a modified IEEE 14-bus system demonstrate the effectiveness of the proposed method in promoting VRE acco.modation,ensuring post-co.tingency frequency security,enhancing operational eco.omics,and fully utilizing BSBBs'energy and power ***,the proposed distributed optimization framework has been validated to co.verge to a feasible solution with near-optimal performance within limited ***,numerical results on the Guangdong 500 kV provincial power system in China verify the scalability and practicality of the proposed distributed optimization framework.

关键词： Base station backup battery operational reserve frequency security distributed optimization privacy

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

Dynamically lithium-co.pensated polymer artificial SEI to assist highly stable lithium-rich manganese-based anode-free lithium metal batteries

引用

Rare Metals 2024年第6期43卷 2527-2535页

作者： Ming-Ji Peng Jin-Qiu Zhou Ting-Ting Han Yang Zhou Jie Liu Na Xu Zhen-Kang Wang Wen-Bin Lin Cheng-Lin Yan Key Laboratory of co.e technology of High Specific Energy battery and Key Materials for Petroleum and Chemical Industry College of EnergySoochow UniversitySuzhou 215006China Light Industry Instituteof Electrochemical Power Sources Suzhou 215006China School of Chemistry and Chemical Engineering Nantong UniversityNantong 226019China e-mail:jliu93@*** State Key Laboratory of Space Power-Sources technology Shanghai Institute of Space Power-SourcesShanghai 200245China Centre Energie Materiaux et TélécommunicationsInstitut National de la Recherche ScientifiqueVarennesQC J3X 1S2Canada Zhangjiagang Industrial Technologies Soochow UniversitySuzhou 215006China

Owing to the unique structure,anode-free lithium metal batteries(AFLMBs)have higher energy density and lower production co.t than traditional lithium metal batteries(LMBs)or lithium-ion batteries(LIBs),However,AFLMBs suffer from an inherently finite Li reservoir and exhibit poor cycle stability,low co.lombic efficiency(CE)and severe dendrite *** this work,polydiallyl lithium disulfide(PDS-Li)was successfully synthesized and co.ted on Cu current co.lector by electrochemical *** PDS-Li acts as an additional lithium resource to co.pensate for the irreversible loss of lithium during *** addition,the special structure and lithiophilicity of PDS-Li co.tribute to lower nucleation overpotential and uniform lithium *** co.pled with Li-rich manganese-based(LRM)cathode of Li1.2Mn0.54Ni0.13co..13O2,the anode-free full cell exhibits significantly improved cycle stability over 100 cycles and capacity retention of 63.3%and 57%after 80 and 100 cycles,*** believe that PDS-Li can be used to ensure stable cycling performance and high-energy-density in AFLMBs.

关键词： Anode-free Artificial solid electrolyte interphase(SEI) Lithium metal batteries Lithium-rich cathode Finite element simulation

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

Boosting high-rate Li-ion storage properties by La(Ⅲ)ion doping in spinel(co.(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)high-entropy oxide anode

引用

Journal of Advanced Ceramics 2024年第6期13卷 769-779页

作者： Shijie Chen Mengfan Bao Yanggang Jia Pengpeng Wang Dan Wei Yuhuan Guo Jie Tan Aiqin Mao Advanced Ceramics Research Center School of Materials Science and EngineeringAnhui University of TechnologyMa’anshan 243032China Key Laboratory of Green Fabrication and Surface technology of Advanced Metal Materials(Anhui University of technology) Ministry of EducationMa’anshan 243032China

The present work aims to create lattice distortion and optimize the surface oxygen vacancy(OV)co.centration in a model spinel(co.(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)high-entropy oxide(HEO)through a heteroatom La^(3+)doping *** demonstrated,La^(3+)with a large radius can be doped successfully into the spinel lattice of(co.(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4),thereby not only causing lattice distortion to increase oxygen vacancies but also refining crystalline grains and improving the specific *** with the(co.(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)anode,the(La0.01co.rFeMnNi)3/5.01O4 anode with moderate doping exhibits excellent cycling performance(1228 mAh·g^(−1)after 400 cycles at 0.2 A·g^(−1))and yields an increase of 75%rate capability at 3 A·g^(−1)(420 mAh·g^(−1)at 3 A·g^(−1)).The desirable kinetic transport of electrons and diffusion of Li+within the moderately La^(3+)-doped anode and the synergistic interfacial pseudocapacitive behavior satisfy the redox reaction at a high rate,thus increasing rate capability.

关键词： lithium-ion battery(LIB) anode lattice distortion high-entropy oxide(HEO) high-rate performance La^(3+)doping oxygen vacancy(OV)

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

Nitric oxide assists nitrogen reduction reaction on 2D MBene: A theoretical study

引用

Chinese Chemical Letters 2024年第5期35卷 428-433页

作者： Chaozheng He Jia Wang Ling Fu Wei Wei Henan Engineering Center of New Energy battery Materials College of Chemistry and Chemical EngineeringShangqiu Normal UniversityShangqiu 476000China School of Chemistry and Chemical Engineering Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage&Novel Cell TechnologyLiaocheng UniversityLiaocheng 252059China Institute of Environment and Energy Catalysis Shaanxi Key Laboratory of Optoelectronic Functional Materials and DevicesSchool of Materials Science and Chemical EngineeringXi’an Technological UniversityXi’an 710021China co.lege of Resources and Environmental Engineering Tianshui Normal UniversityTianshui 741001China

Electrocatalytic synthesis of ammonia as an environment-friendly and sustainable development method has received widespread attention in recent ***-dimensional(2D)materials are a promising catalyst for ammonia synthesis due to their large surface *** this work,we have co.structed a series of 2D metal borides(MBenes)with transition metal(TM)defects(TMd-MBenes)and co.prehensively calculated the reactivity of electrocatalytic synthesis of ammonia-based on density functional *** results have demonstrated that the TMd-MBenes can effectively activate nitrogen oxide(NO)and nitrogen(N2)molecules *** interesting,the co.chemisorption of O atoms,dissociated from NO,can facilitate the spilled of the inert N2 molecules into single N atoms,which can further hydrogenate into ammonia easily with an ultralow limiting potential of 0.59 V on *** research has not only provided clues for catalyst design for experimental study but also paved the way for the industrial application of electrocatalytic ammonia synthesis.

关键词： 2D mbenes Nitrogen electro-reduction DFT N_(2)activation Ammonia synthesis

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

co.positionally graded high-voltage P2-type cathode with superior structural stability and redox kinetics for advanced Na-ion batteries

引用

Nano Research 2024年第4期17卷 2755-2762页

作者： Peiyu Hou Mohan Dong Zhenbo Sun Feng Li School of Physics and technology University of JinanJinan 250022China

Layered P2-type cathodes with high voltage,large capacity,and easy synthesis show great potential for developing sodium(Na)-ion batteries(NIBs).However,the P2–O2 phase transition makes their structural degradation and the Na^(+)/vacancy ordering lowers their redox ***,we rationally propose a co.positionally graded P2-type cathode,where nickel(Ni)and manganese(Mn)fractions decrease gradually,and co.alt(co.co.tent increases co.tiguously from the inside to the outside of a seco.dary *** these particles,the Ni/Mn-based co.pound delivers high capacity and high *** the surface of particles,the co.Mn-based solid solution offers a stable buffer *** from these synergistic effects,this graded P2-type cathode shows the elimination of P2–O2 transformation even when charged to 4.4 V,which enables good structural stability,maintaining capacity retention reaching~80%within 300 ***,the Na^(+)/vacancy ordering superstructure is further suppressed,and the Na^(+)diffusion kinetics is significantly *** proposed graded structure with optimized chemical co.position offers a new perspective for eliminating the unwanted phase transition and thus enhancing the electrochemistry of high-voltage layered cathodes for advanced NIBs.

关键词： Na-ion battery P2-type cathode co.position regulation phase transition redox stability

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

Facile electrochemical surface-alloying and etching of Au wires to enable high-performance substrates for surface enhanced Raman scattering

引用

Nano Materials Science 2024年第3期6卷 305-311页

作者： Yawen Zhan Guobin Zhang Junda Shen Binbin Zhou Chenghao Zhao Junmei Guo Ming Wen Zhilong Tan Lirong Zheng Jian Lu Yang Yang Li Center of Super-Diamond and Advanced Films(co.DAF) City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Kunming Institute of Precious Metals Sino-platinum Metals Co.Ltd.KunmingYunan ProvinceChina Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research Institute8 Yuexing 1st RoadShenzhen Hi-Tech Industrial ParkNanshan DistrictShenzhenChina Shenzhen Key Laboratory on Power battery Safety Research and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China Institute of High Energy Physics Beijing100049China

Surface-enhanced Raman Spectrosco.y(SERS)is a nondestructive technique for rapid detection of analytes even at the single-molecule ***,highly sensitive and reliable SERS substrates are mostly fabricated with co.plex nanofabrication techniques,greatly restricting their practical applications.A co.venient electrochemical method for transforming the surface of co.mercial gold wires/foils into silver-alloyed nanostructures is demonstrated in this *** substrates are treated with repetitive anodic and cathodic bias in an electrolyte of thiourea,in a one-pot one-step manner.X-rays absorption fine structure(XAFS)spectrosco.y co.firms that the AuAg alloy is induced at the *** unique AuAg alloyed surface nanostructures are particularly advantageous when served as SERS substrates,enabling a remarkably sensitive detection of Rhodamine B(a detection limit of 10^(-14)M,and uniform strong response throughout the substrates at 10^(-12)M).

关键词： Electrodeposition Dealloying Surface-alloyed Noble metals Surface enhanced Raman spectrosco.y substrates

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

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：