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An Endotenon Sheath-Inspired Double-Network Binder Enables Superior Cycling Performance of Silicon Electrodes

Nano-Micro Letters 2022年第6期14卷 15-27页

作者： meifang jiang Pengzhou Mu Huanrui Zhang Tiantian Dong Ben Tang Huayu Qiu Zhou Chen Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesNo.189 Songling RoadQingdao 266101People’s Republic of China Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education College of Chemistry and Chemical EngineeringOcean University of ChinaNo.238 Songling RoadQingdao 266100People’s Republic of China University of Chinese Academy of Sciences Beijing 100190People’s Republic of China

Silicon(Si)has been regarded as an alternative anode material to traditional graphite owing to its higher theoretical capacity(4200 vs.372 m Ah g;).However,Si anodes suffer from the inherent volume expansion and unstable solid electrolyte interphase,thus experiencing fast capacity decay,which hinders their commercial *** address this,herein,an endotenon sheathinspired water-soluble double-network binder(DNB)is presented for resolving the bottleneck of Si *** as-developed binder shows excellent adhesion,high mechanical properties,and a considerable self-healing capability mainly benefited by its supramolecular hybrid *** from these advantages,this binder also induces a Li;N/Li F-rich solid electrolyte interface layer,contributing to a superior cycle stability of Si *** expected,the DNB can achieve mechanically more stable Si electrodes than traditional polyacrylic acid and pectin *** a result,DNB delivers superior electrochemical performance ofSi/Li half cells and Li Ni;Co;Mn;O;/Si full cells,even with a high loading of Si electrode,to traditional polyacrylic acid and pectin *** bioinspired binder design provides a promising route to achieve long-life Si anode-assembled lithium batteries.

关键词： Efficiency Double-network binder Silicon electrodes Lithium battery

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Polymer electrolytes for Li-S batteries:Polymeric fundamentals and performance optimization

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Journal of Energy Chemistry 2021年第7期30卷 300-317页

作者： meifang jiang Zengqi Zhang Ben Tang Tiantian Dong Hantao Xu Huanri Zhang Xiaolan Lu Guanglei Cui Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education College of Chemistry and Chemical Engineering Ocean University of ChinaNo.238 Songling RoadQingdao 266100ShandongChina Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesNo.189 Songling RoadQingdao 266101ShandongChina

Lithium-sulfur(Li-S) batteries have been considered as one of the most promising candidates to traditional lithium ion batteries due to its low cost,high theoretical specific capacity(1675 mAh g^(-1)) and energy density(2600 Wh kg^(-1)) of *** with traditional liquid electrolytes,polymer electrolytes(PEs) are ever-increasingly preferred due to their higher safety,superior compatibility,long cycling stability and so *** some progresses on PEs,however,there remain lots of hurdles to be addressed prior to commercial *** review begins with native advantages for PEs to replace LEs,and then proposes the ideal requirements for ***,a brief development history of typical PEs for Li-S batteries is presented to systematically summarize the recent achievements in Li-S batteries with *** that the structure-performance relationships of polymer matrixes for PEs are ***,the challenges and opportunities on the future development of PEs are *** hold the view that composite polymer electrolytes in virtue of the high ionic conductivity and the compatible interfacial property will be promising solution for high performance Li-S batteries.

关键词： Polymer electrolyte Lithium-sulfur batteries Polysulfide shuttle

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Investigation and Analysis of the Oral Expression Competency Among Students in Second-tier Universities:Based on China's Standards of English Language Ability

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Journal of Contemporary Educational Research 2022年第2期6卷 27-42页

作者： meifang jiang Honghui Zhou School of Foreign Studies Lingnan Normal University ZhanjiangChina School of Foreign Studies Guangdong University of Finance and EconomicsGuangzhouChina

By adopting quantitative analysis,based on the statements for oral scale of CSE(China Standards of English)level five,this paper investigated the current status,common difficulties and control factors on oral English competency of nonEnglish majors in second-tier universities,which was conducted using questionnaires that includes six dimensions of language expression:accuracy,complexity,coherence,fluency,appropriateness,and *** results showed that:(i)the overall oral English competency of college non-English majors hasn't met the statements of CSE level five;(ii)female students significantly outperformed male students,and business majors students significantly outperformed those in liberal arts majors who were significantly better than those in science majors;(iii)there was no significant difference between grades;(iv)the flexibility,coherence and accuracy of language expression almost reached the standard grade,but the common core difficulties faced by the students were mainly in pronunciation,scope oflanguage expression,fluency and *** goals,less practice and poor vocabulary were major impact *** research is helpful for strengthening students?knowledge on their own oral English competency as well as adjusting their oral practice objectives,thereby shedding light on students5 actual oral English proficiency and helping to clarify and refine the teaching objectives of speaking and promote the effective practice of oral English as well as the rational application of CSE.

关键词： China Standards of English Non-English majors College students,Oral English proficiency

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A polymer electrolyte with a thermally induced interfacial ion-blocking function enables safety-enhanced lithium metal batteries

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eScience 2022年第2期2卷 201-208页

作者： Huanrui Zhang Lang Huang Hantao Xu Xiaohu Zhang Zhou Chen Chenhui Gao Chenglong Lu Zhi Liu meifang jiang Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesNo.189 Songling RoadQingdao266101China College of Chemistry and Chemical Engineering Yantai UniversityYantai264005China School of Future Technology University of Chinese Academy of SciencesChina

Lithium metal batteries(LMBs)have recently been revitalized as one of the most promising electrochemical energy storage systems,owing to the ultrahigh specific capacity(3860 mAh g^(-1))and ultralow potential(-3.04 V *** hydrogen electrode)of lithium metal ***,safety hazards originating from lithium dendrite growth and pulverization during cycling and thermal stimulation present significant challenges to the practical application of *** address this issue,we have developed an in situ polymer electrolyte with thermally induced interfacial ion-blocking *** demonstrate that the repolymerization and deposition of residual vinylene carbonate in the as-prepared electrolyte under thermal abuse predominantly results in thermally induced ion blocking at the solid electrolyte interface,thus achieving superior LMB *** developed polymer electrolyte also yields superior cyclability in *** design philosophy provides a good paradigm for improving the safety of LMBs.

关键词： Lithium metal battery Polymer electrolyte Interfacial ion-blocking ability Battery safety

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Correction to:An endotenon sheath‑inspired double‑network binder enables superior cycling performance of silicon electrodes

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Nano-Micro Letters 2022年第8期14卷 229-231页

The original version of this article unfortunately contained some *** authors found that the data unit in Fig.3a–f is *** corrected version of Fig.3 is given below:*** authors found that explanation of the data lines in Fig.2e is *** corrected version of the explanation of Fig.2e is given below:The DNB can endure approximately 300%stretching and withstand stress up to about 1.5 MPa,as shown in Fig.2e.

关键词： explanation enable cycling

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"311问题墙活动"设计与实践

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上海教育科研 2005年第3期 36-37页

作者：蒋美芳上海卢湾区七色花小学 200020

七色花小学五年级的"311问题墙活动",以学生身心全面发展为核心,以主题系列活动为基础,以问题的发现和探索为抓手,通过交叉进行的"三个栏目论坛"、"一次集体辩论"和"一次合作探究",将"多样性"、"开放性"、"协同合作"、"相互依存"等教育... 详细信息

七色花小学五年级的"311问题墙活动",以学生身心全面发展为核心,以主题系列活动为基础,以问题的发现和探索为抓手,通过交叉进行的"三个栏目论坛"、"一次集体辩论"和"一次合作探究",将"多样性"、"开放性"、"协同合作"、"相互依存"等教育生态意识观念贯穿其间,是一种学生主动参与、合作、探究的个性化教育的过程.

关键词：学生教育生态主题系列活动合作探究主动参与个性化教育栏目协同合作意识观念问题

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乳突-颞下迷路外径入路面神经减压术治疗颞骨骨折面瘫

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临床耳鼻咽喉头颈外科杂志 2011年第1期25卷 6-7,10页

作者：利显民江美芳深圳市宝安区人民医院耳鼻咽喉科广东深圳518101

目的:探讨乳突-颞下迷路外径入路面神经减压术治疗颞骨骨折面瘫的临床疗效。方法:对2006-01-2008-04收治的26例外伤性面瘫患者行乳突-颞下迷路外径入路面神经减压术。面神经功能House-Braek-mann分级:Ⅴ级12例,Ⅵ级10例,Ⅲ级4例。术前... 详细信息

目的:探讨乳突-颞下迷路外径入路面神经减压术治疗颞骨骨折面瘫的临床疗效。方法:对2006-01-2008-04收治的26例外伤性面瘫患者行乳突-颞下迷路外径入路面神经减压术。面神经功能House-Braek-mann分级:Ⅴ级12例,Ⅵ级10例,Ⅲ级4例。术前纯音测听检查示:16例纵行骨折语频气导平均听阈为52dB,10例混合性骨折均为重度感音神经性聋。颞骨轴位CT示:13例可见骨折线。虚拟耳镜观察9例听骨链中断,面神经曲面重建显示膝状神经节区、鼓室段及乳突段骨管不规整。结果:全部患者术后一期愈合,无手术并发症发生。术后随访0.5～3.0年,平均1.2年。面神功能恢复达House-BrackmannⅠ级15例,Ⅱ级6例,Ⅲ级5例;语频气导听力平均提高33dB。结论:乳突-颞下迷路外径入路面神经减压术治疗颞骨骨折面瘫高位面神经减压保全和重建听骨链效果满意。

关键词：面瘫颞骨骨折手术入路外科手术

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