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The chance of sodium titanate anode for the practical sodium-ion batteries

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Chinese Journal of Chemical Engineering 2024年第8期72卷 226-244页

作者： Feng Chen Haoyu Li Xianyan Qiao Ruoyang Wang Changyan Hu Ting Chen Yifan Niu Benhe Zhong Zhenguo Wu xiaodong guo School of Chemical Engineering Sichuan UniversityChengdu 610065China Institute for Advanced Study Chengdu UniversityChengdu 610106China Chengdu No.7 High School Chengdu 6100412China

Supporting sustainable green energy systems,there is a big demand gap for grid energy *** storage,especially sodium-ion batteries(SIBs),have advanced significantly and are now emerging as a feasible alternative to the lithium-ion batteries equivalent in large-scale energy storage due to their natural abundance and prospective inexpensive *** various anode materials of SIBs,beneficial properties,such as outstanding stability,great abundance,and environmental friendliness,make sodium titanates(NTOs),one of the most promising anode materials for the rechargeable ***,there are still enormous challenges in application of NTO,owing to its low intrinsic electronic conductivity and collapse of *** research on NTOs is still in its infancy;there are few conclusive reviews about the specific function of various modification ***,we summarize the typical strategies of optimization and analysis the fine structures and fabrication methods of NTO anodes combined with the application of in situ characterization *** work provides effective guidance for promoting the continuous development,equipping NTOs in safety-critical systems,and lays a foundation for the development of NTO-anode materials in SIBs.

关键词： Sodium titanates Sodium-ion batteries Modification methods Electronic materials Electrochemistry Synthesis

Self-Adaptive and Electric Field-Driven Protective Layer with Anchored Lithium Deposition Enable Stable Lithium Metal Anode

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Energy & Environmental Materials 2024年第3期7卷 32-40页

作者： Ting Chen Luchao Yue guoqiang Shu Qing Yang Dong Wang Ruoyang Wang Xianyan Qiao Yan Sun Benhe Zhong Zhenguo Wu xiaodong guo Department of Chemical Engineering Sichuan UniversityChengdu 610065China School of Mechanical Engineering Chengdu UniversityChengdu 610106China

Lithium metal battery has great development potential because of its lowest electrochemical potential and highest theoretical ***,the uneven deposition of Li^(+)flux in the process of deposition and stripping induces the vigorous growth of lithium dendrites,which results in severely battery performance degradation and serious safety ***,the tetragonal BaTiO3 polarized by high voltage corona was used to build an artificial protective layer with uniform positive polarization direction,which enables uniform Li^(+)*** contrast to traditional strategies of using protective layer,which can guide the uniform deposition of lithium *** ferroelectric protective layer can accurately anchor the Li^(+)and achieve bottom deposition of lithium due to the automatic adjustment of the electric ***,the huge volume changes caused by Li^(+)migration change of the lithium metal anode during charging and discharging is functioned to excite the piezoelectric effect of the protective layer,and achieve seamless dynamic tuning of lithium deposition/*** dynamic effect can accurately anchor and capture Li^(+).Finally,the layer-modified Li anode enables reversible Li plating/stripping over 1500 h at 1 mA cm^(-2)and 50℃in symmetric *** addition,the assembled Li-S full cell exhibits over 300 cycles with N/P≈*** work provides a new perspective on the uniform Li^(+)flux at the Li-anode interface of the artificial protective layer.

关键词： dense plating/stripping process electric field ferroelectric materials lithium metal batteries solid electrolyte interphase

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金元首领官制度刍议

史学月刊 2024年第4期 30-44页

作者：郭晓东河南师范大学政治与公共管理学院河南新乡453007

首领官是元代中央、地方官府主要属官的统称。其制发端于金代,形成于元代。金代首领官分布于尚书省、枢密院及其派出机构行尚书省、行枢密院等官署,但这些机构的都事等吏职则不属于首领官。首领官系“首领吏员”之义,产生于官吏界限模... 详细信息

首领官是元代中央、地方官府主要属官的统称。其制发端于金代,形成于元代。金代首领官分布于尚书省、枢密院及其派出机构行尚书省、行枢密院等官署,但这些机构的都事等吏职则不属于首领官。首领官系“首领吏员”之义,产生于官吏界限模糊、吏员地位提升的背景之下。“首领官”称谓的出现不晚于金代中期,但至金末才具有制度化趋势。金代首领官的设置大抵局限于中央机构,未及地方官府。元代首领官制度的确立以忽必烈称帝、推行汉法为背景,继承了金代首领官职位,同时受金朝吏制和大蒙古国汗廷必阇赤及地方幕僚制度之影响,都事等升为官职,都目等吏职亦同其一道称为首领官。由此,元代形成了系统的首领官制度。首领官制度对宋代以降的中央及地方僚属系统进行了全面改造,改变了传统四等官制的外在形式及内部运作形态。

关键词：金代元代首领官属官四等官制

历史书写中的“史料”与“史义”:从孔子作《春秋》谈起

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复旦学报（社会科学版） 2024年第5期66卷 23-28页

作者：郭晓东复旦大学哲学学院上海200433

近代以来,历史学家每每认为史家的任务是据事直书,如实客观地还原历史之真实,从而颇将史料学等同于历史学。但这并不符合中国传统史学的精神。中国传统史学深受孔子作《春秋》的影响,一方面注重史实的陈述,但更重视史实所蕴含的义理内... 详细信息

近代以来,历史学家每每认为史家的任务是据事直书,如实客观地还原历史之真实,从而颇将史料学等同于历史学。但这并不符合中国传统史学的精神。中国传统史学深受孔子作《春秋》的影响,一方面注重史实的陈述,但更重视史实所蕴含的义理内涵与思想意义。从汉代的司马迁、班固,到近代的蒙文通,莫不是如此。对于历史书写而言,“史料”与“史义”的结合,才是中国传统史学的精义所在,其中“史料”是载体,而“史义”则是灵魂。没有“史料”,史学之精神固然无所依附;但没有“史义”,则“史料”也当失去其应有的生命。

关键词：史料史义《春秋》

Self-Adaptive and Electric Field-Driven Protective Layer with Anchored Lithium Deposition Enable Stable Lithium Metal Anode

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Energy & Environmental Materials 2024年第03期 36-44页

作者： Ting Chen Luchao Yue guoqiang Shu Qing Yang Dong Wang Ruoyang Wang Xianyan Qiao Yan Sun Benhe Zhong Zhenguo Wu xiaodong guo Department of Chemical Engineering Sichuan University School of Mechanical Engineering Chengdu University

Lithium metal battery has great development potential because of its lowest electrochemical potential and highest theoretical capacity. However,the uneven deposition of Li+flux in the process of deposition and stripping induces the vigorous growth of lithium dendrites,which results in severely battery performance degradation and serious safety hazards. Here,the tetragonal BaTiO3polarized by high voltage corona was used to build an artificial protective layer with uniform positive polarization direction,which enables uniform Li+flux. In contrast to traditional strategies of using protective layer,which can guide the uniform deposition of lithium *** ferroelectric protective layer can accurately anchor the Li+and achieve bottom deposition of lithium due to the automatic adjustment of the electric field. Simultaneously,the huge volume changes caused by Li+migration change of the lithium metal anode during charging and discharging is functioned to excite the piezoelectric effect of the protective layer,and achieve seamless dynamic tuning of lithium deposition/*** dynamic effect can accurately anchor and capture Li+. Finally,the layermodified Li anode enables reversible Li plating/stripping over 1500 h at1 mA cm-2and 50℃ in symmetric cells. In addition,the assembled Li-S full cell exhibits over 300 cycles with N/P≈1.35. This work provides a new perspective on the uniform Li+flux at the Li-anode interface of the artificial protective layer.

关键词：

Unveiling the correlation between structural alterations and enhanced high-voltage cyclability in Na-deficient P3-type layered cathode materials via Li incorporation

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Electron 2024年第1期2卷 164-176页

作者： Xiaoxia Yang Suning Wang Hang Li Jochi Tseng Zhonghua Wu Sylvio Indris Helmut Ehrenberg xiaodong guo Weibo Hua School of Chemical Engineering and Technology Xi'an Jiaotong UniversityXi'anChina School of Chemical Engineering Sichuan UniversityChengduChina Institute for Applied Materials(IAM) Karlsruhe Institute of Technology(KIT)Eggenstein‐LeopoldshafenGermany Diffraction and Scattering Division Japan Synchrotron Radiation Research Institute(JASRI)KoutoSayo‐choSayo‐gunHyogoJapan Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina

With exceptional capacity during high-voltage cycling,P3-type Nadeficient layered oxide cathodes have captured substantial ***,they are plagued by severe capacity degradation over *** this study,tuning and optimizing the phase composition in layered oxides through Li incorporation are proposed to enhance the high-voltage *** structural dependence of layered Na_(2/3)LixNi_(0.25)Mn_(0.75)O_(2)þδoxides on the lithium content(0.0≤x≤1.0)offered during synthesis is investigated systematically on an atomic ***,increasing the Li content triggers the formation of mixed P2/O3-type or P3/P2/O3-type layered *** the voltage window is 1.5-4.5 V,P3-type Na2/3Ni_(0.25)Mn_(0.75)O_(2)(NL0.0NMO,R3m)material exhibits a sequence of phase transformations throughout the process of(de)sodiation,that is,O3⇌P3⇌O30⇌O3″.Such complicated phase transitions can be effectively suppressed in the Na2/3Li_(0.7)Ni_(0.25)Mn_(0.75)O_(2.4)(NL_(0.7)NMO)oxide with P2/P3/O3-type mixed ***,cathodes made of NL0.7NMO exhibit a substantially enhanced cyclic performance at high voltages compared to that of the P3-type layered NL0.0NMO ***,NL0.7NMO demonstrates an outstanding capacity retention of 98%after 10 cycles at 1 C within 1.5-4.5 V,much higher than that of NL0.0NMO(83%).This work delves into the intricate realm of bolstering the high-voltage durability of layered oxide cathodes,paving the way for advanced sodium-ion battery technologies.

关键词： high-voltage cycling Li incorporation phase transition sodium ion batteries triphasic composites

企业扶贫行为传递对乡村振兴的启示——来自股东扶贫网络的证据

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贵州财经大学学报 2024年第2期 101-110页

作者：杜剑张杰郭晓冬贵州财经大学会计学院贵州贵阳550025 贵州师范大学喀斯特生态文明研究中心贵州贵阳550025

现有研究侧重从企业个体维度探讨其参与帮扶的影响因素,忽略了企业个体行为在社会网络中的嵌入性。鉴于此,选取2016~2020年中国A股上市公司精准扶贫数据,从以往研究较少涉及的社会网络视角出发,探究股东扶贫网络对企业扶贫行为的影响及... 详细信息

现有研究侧重从企业个体维度探讨其参与帮扶的影响因素,忽略了企业个体行为在社会网络中的嵌入性。鉴于此,选取2016~2020年中国A股上市公司精准扶贫数据,从以往研究较少涉及的社会网络视角出发,探究股东扶贫网络对企业扶贫行为的影响及其机理。研究发现:股东在扶贫网络中越靠近中心位置,企业参与精准扶贫的意愿就越强、扶贫投入就越多、扶贫效果就越好;机制检验表明,企业扶贫行为可以在股东扶贫网络中进行传递,股东扶贫网络主要通过信息渠道与公司治理渠道来影响企业扶贫行为;进一步发现,企业的产权性质、融资约束及所在地区的市场化程度,会对股东扶贫网络与企业扶贫行为之间的关系产生异质性影响。研究结论为推动企业参与乡村振兴战略提供了来自社会网络的分析视角,也为政府部门引导股东的社会责任投资提供了经验启示。

关键词：企业扶贫行为股东扶贫网络信息共享公司治理乡村振兴

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新中国法治宣传教育的变迁逻辑与实践理路

河南警察学院学报 2024年第5期33卷 74-85页

作者：郭小东浙江大学光华法学院浙江杭州310008

法治宣传教育是全面依法治国的长期基础性工作。伴随着新中国法治建设的伟大历史进程,法治宣传教育经历了法纪宣传教育新起点、法制宣传教育新时期、法治宣传教育新时代三个阶段。在新中国70余年的发展历程中,法治宣传教育工作有以下四... 详细信息

法治宣传教育是全面依法治国的长期基础性工作。伴随着新中国法治建设的伟大历史进程,法治宣传教育经历了法纪宣传教育新起点、法制宣传教育新时期、法治宣传教育新时代三个阶段。在新中国70余年的发展历程中,法治宣传教育工作有以下四个层面的演进逻辑:在概念范畴上,从“法纪宣传教育”到“法制宣传教育”,再到“法治宣传教育”;在宣教模式上,从运动式的“政治动员型”到常规化的“政府主导型”,再到科学化的“双向互动型”;在功能目标上,从“破除封建陋习、稳定社会秩序、巩固新生人民政权”到“培养法律意识、提高法律素养、加强依法治理”,再到“增强法治观念、提升法治素养、建设法治社会”;在宣传方法上,从“传统普法模式”到“网络普法模式”,再到“智慧普法模式”。法治宣传教育理念、内容与方式方法多重演进的背后是法治中国建设模式与国家治理理念的现代化转型。纵观70余年的伟大历程,法治宣传教育工作不仅取得了重要成就,而且也积累了大量的宝贵经验,具体表现为以下五个方面:坚持党的领导、服务党和国家中心工作、牢牢站稳人民立场、强化分类指导与突出重点、坚持与法治实践深度融合。

关键词：普法法治宣传教育国家治理现代化法治传播智慧普法

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当代中国马克思主义法哲学研究:回顾与展望

湖北理工学院学报（人文社会科学版） 2024年第2期41卷 76-85页

作者：郭小东浙江大学光华法学院浙江杭州310008

马克思主义法哲学研究是马克思主义研究的重要领域。新中国成立初期,我国马克思主义法哲学研究主要是在苏联《国家与法的理论》教科书的传统下展开,形成了苏联化的马克思主义法哲学研究模式。改革开放以后,我国马克思主义法哲学研究步... 详细信息

马克思主义法哲学研究是马克思主义研究的重要领域。新中国成立初期,我国马克思主义法哲学研究主要是在苏联《国家与法的理论》教科书的传统下展开,形成了苏联化的马克思主义法哲学研究模式。改革开放以后,我国马克思主义法哲学研究步入自主自觉和加快发展阶段。进入新世纪,马克思主义法哲学研究开始迈向全面发展的新阶段,研究的主题更加丰富、特点愈加鲜明、队伍不断壮大、成果更加丰硕。回望70余年的研究历程,我国马克思主义法哲学研究始终坚持“回归经典”与“关注现实”相结合、坚持“历史探源”与“理论创新”相结合、坚持“实践主导”与“多元推进”相结合。展望未来,马克思主义法哲学研究应当加强运用多学科交叉研究方法,应当加强对中国特色社会主义国家制度和法律制度的理论研究,应当加强对马克思主义法律思想中国化研究。

关键词：马克思主义法哲学马克思主义法律思想马克思主义法律思想中国化