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Operando monitoring of dendrite formation in lithium metal batteries via ultrasensitive tilted fiber Bragg grating sensors

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Light(Science & Applications) 2024年第1期13卷 153-166页

作者： Xile Han Hai Zhong Kaiwei Li Xiaobin Xue Wen Wu Nan Hu xihong lu Jiaqiang Huang Gaozhi Xiao Yaohua Mai Tuan Guo Institute of Photonics Technology Jinan UniversityGuangzhou 510632China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632China Key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchun 130022China The Key Lab of Low-Carbon Chemistry&Energy Conservation of Guangdong Province School of ChemistrySun Yat-Sen UniversityGuangzhou 510275China Sustainable Energy and Environment Thrust The Hong Kong University of Science and Technology(Guangzhou)NanshaGuangzhouGuangdong 511400China Advanced Electronics and Photonics Research Centre National Research Council of CanadaOttawa K1A OR6Canada

Lithium(Li)dendrite growth significantly deteriorates the performance and shortens the operation life of lithium metal *** the intricate dynamics of surface localized and rapid mass transport at the electrolyte–electrode interface of lithium metal is essential for the understanding of the dendrite growth process,and the evaluation of the solutions mitigating the dendrite growth *** we demonstrate an approach based on an ultrasensitive tilted fiber Bragg grating(TFBG)sensor which is inserted close to the electrode surface in a working lithium metal battery,without disturbing its *** to the superfine optical resonances of the TFBG,in situ and rapid monitoring of mass transport kinetics and lithium dendrite growth at the nanoscale interface of lithium anodes have been *** correlations between the performance of different natural/artificial solid electrolyte interphases(SEIs)and the time-resolved optical responses have been observed and quantified,enabling us to link the nanoscale ion and SEI behavior with the macroscopic battery *** new operando tool will provide additional capabilities for parametrization of the batteries’electrochemistry and help identify the optimal interphases of lithium metal batteries to enhance battery performance and its safety.

关键词： battery lithium electrolyte

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6例大脑深静脉病变累及双侧丘脑MRI表现

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中国医学影像技术 2024年第7期40卷 1112-1114页

作者：陆喜红段蓉有慧罗春长沙市中医医院(长沙市第八医院)放射科湖南长沙410100 中国医学科学院北京协和医学院北京协和医院放射科北京100730 山东平邑县中医医院放射科山东临沂273300

大脑深静脉病变包括脑深脑静脉血栓(deep cerebral venous system thrombosis,DCVT)和硬脑膜动静脉瘘(dural arteriovenous fistula,DAVF)等。DCVT发病率低,临床表现多样。本文报告6例大脑深静脉病变累及双侧丘脑MRI表现。

关键词：脑静脉血栓形成动静脉瘘丘脑磁共振成像

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Do zinc dendrites exist in neutral zinc batteries?

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Green Energy & Environment 2020年第1期5卷 6-7页

作者： Jinjun He xihong lu School of Chemical Engineering and Technology The Key Lab of Low-carbon Chem & Energy Conservation of Guangdong Province School of Chemistry Sun Yat-Sen University

Neutral aqueous zinc batteries(ZBs)using mild aqueous electrolytes such as ZnSO4 solution exhibit intrinsic security,non-toxicity,low cost,simplified assembling process,and high energy density,which sweep out consumer's concerns about safety[1,2].These advantages promote this field to develop rapidly at multiple aspects ranging from the advanced cathode design to the functional/smart device assembly[3,4].However,the controversial standpoint whether Zn dendrites exist during the charging/discharging processes in neutral/mild electrolytes is still under *** researchers demonstrated commercial Zn plates without further treatment were capable of driving highly reversable Zn plating/stripping courses in a non-dendrite manner[5-7]whereas others,by virtue of radiography and optical microscopy,clearly visualized the appearance of Zn dendrites that caused internal short circuit and severe battery lifespan deterioration[8-11].

关键词： stripping battery driving

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Promoting ion adsorption and desolvation kinetics enables high capacity and rate capability of stibium anode for advanced alkaline battery

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Journal of Materials Science & Technology 2022年第36期131卷 60-67页

作者： Peng Zhang Jinhao Xie Fan Yang Xin Shi Yanxia Yu xihong lu College of Materials Science and Engineering Guangdong Provincial Engineering Technology Research Center of Key Material for High Performance Copper Clad LaminateDongguan Cleaner Production CenterDongguan University of TechnologyDongguan 523808China MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-carbon Chem and Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Stibium(Sb)metal with high theoretic capacity,suitable negative working window and inexpensive nature are promising anode material for advanced aqueous alkaline batteries(AABs).However,the further development of Sb anode is severely hindered by the low capacity and poor rate capability which is originated from deficient adsorption of[Sb(OH)_(4)]^(-)and its sluggish desolvation ***,a nitrogen doped carbon cages(NCCs)substrate is constructed as high capacity and rate capability anode by promoting the adsorption and following desolvation process of[Sb(OH)_(4)]^(-)via the enhanced attraction toward(OH)-in the solvated[Sb(OH)_(4)]^(-).Consequently,the designed Sb/NCCs anode delivers a high capacity of 627 m Ah g^(-1)with an average 95%Sb utilization,an outstanding coulombic efficiency(CE)of 95%and an impressive lifespan(>110 h).Meanwhile,the Ni_(3)Se_(2)//Sb/NCCs batteries show great capacity retention of 86.7%after 2000 cycles with an areal capacity of 0.52 m Ah cm^(-2).Implementation of the designed anode allows for the construction of Sb-based AABs with enhanced rate capability,energy density and cycling performance.

关键词： Aqueous alkaline batteries Stibium anode N-doped carbon Ion adsorption Desolvation kinetics

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Flexible Zn-ion batteries based on manganese oxides: Progress and prospect

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Carbon Energy 2020年第3期2卷 387-407页

作者： Xingyuan Gao Haozhe Zhang Xiaoqing Liu xihong lu Department of Chemistry Engineering Technology Development Center of Advanced Materials&Energy Saving and Emission Reduction in Guangdong Colleges and UniversitiesGuangdong University of EducationGuangzhouChina MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-carbon Chem&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhouChina

The ever-growing market of wearable electronic devices has greatly stimulated the rapid development of flexible Zn-ion batteries(ZIBs).Manganese oxides are one of the most commonly used hosts for zinc ion accommodation and thus receive particular research interest for high-performance flexible ZIB *** this review,a comprehensive summary of the recent development of flexible ZIBs with manganese oxides as cathode materials is *** from the brief introduction of flexible electronic devices and ZIBs,the charge storage mechanisms and crystal structures of various manganese oxides are *** of the cathode materials in terms of morphology,conductivity,structures,and flexibilities are illustrated in detail,together with the demonstration of structure-performance relationships and applications in flexible ***,limitations to be overcome are indicated and the future work directions are proposed.

关键词： cathodes flexible devices manganese oxides MnO2 Zn-ion batteries

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Surface engineering towards high-energy carbon cathode for advanced aqueous zinc-ion hybrid capacitors

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中国化学快报:英文版 2023年第8期34卷 356-359页

作者： Xingyuan Gao Huilin Deng Yuanbin Fang Yuyan Li xihong lu Faculty of Chemistry and Material Science Guangdong University of EducationEngineering Technology Development Center of Advanced Materials&Energy Saving and Emission Reduction in Guangdong Colleges and UniversitiesGuangzhou 510303China MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-carbon Chem&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275China

Opportunities coexist with challenges for the development of carbon-based cathodes with a high energy density applied for zinc ion hybrid capacitors(ZIHCs).In the present study,a facile and effective surface engineering approach is demonstrated to greatly improve the energy storage ability of commercial carbon paper(CP)in *** from the introduced oxygen functional groups,larger surface area and improved surface wettability upon air calcination,the assembled aqueous ZIHC with the functionalized carbon paper(FCP)exhibits a much higher areal capacity of 0.22 mAh/cm^(2)at 1 mA/cm^(2),outperforming the counterpart with blank CP by over 5000 *** importantly,a superior energy density and power density of 130.8μWh/cm^(2)and 7460.5μW/cm^(2),are respectively ***,more than 90%of the initial capacity is retained over 10000 *** surface engineering strategy to improve the energy storage capability is potentially applicable to developing a wide range of high-energy carbon electrode materials.

关键词： Zinc ion hybrid capacitor Carbon cathode Air activation Pseudocapacitance Surface engineering

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A high over-potential binder-free electrode constructed of Prussian blue and MnO2 for high performance aqueous supercapacitors

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Nano Research 2019年第5期12卷 1061-1069页

作者： Gaowei Zhang Hua Yao Feng Zhang Zitao Gao Qiujun Li Yangyi Yang xihong lu School of Materials Science and Engineering School of ChemistrySun Yat-sen UniversityGuangzhou 510275China College of Chemistry and Pharmaceutical Engineering Huanghuai UniversityZhumadian 463000China

Extending the potential window of aqueous supercapacitors (SCs) up to 2.0 V is still a great *** on their good dynamic structural reversibility and open framework structure,the coordination superamolecular networks (CSNs) exhibit rapid charge/discharge ability and excellent cycle *** a typical coordination superamolecular network (CSN),Prussian blue (denoted as CSN-PB),which self-assembled by the CN-ligand and iron ions is firstly in-situ grown on carbon cloth,followed by electro-deposition of MnO2 to form CSN-PB/MnO2 composite *** from synergistic effect of the constituent components,as well as the open framework structure of CSN-PB,this composite electrode reaches a high potential window of 1.4 V (***/AgCl) and delivers a good specific capacitance of 315.3 F·g^-1 in aqueous *** aqueous asymmetric device,constructed with CSN-PB/MnO2 composite as cathode and activated carbon as anode,can work in a stable potential window of 2.4 V,exhibits a high energy density of 46.13 Wh·kg^-1 and excellent cycling stability with 85.5% capacitance retention after 20,000 *** work provides a new concept of high dynamic structural reversibility from CSNs to increase the cell voltage of asymmetric SCs for further boosting energy density.

关键词： coordination superamolecular networks Prussian blue high operating voltage binder-free electrode aqueous supercapacitors

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Recent progress and challenges of carbon materials for Zn-ion hybrid supercapacitors

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Carbon Energy 2020年第4期2卷 521-539页

作者： Qiyu Liu Haozhe Zhang Jinhao Xie Xiaoqing Liu xihong lu MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-carbon Chem and Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhouChina School of Applied Physics and Materials Wuyi UniversityJiangmenChina

Zinc-ion hybrid supercapacitors(ZHSCs)have garnered increasing attention as promising energy storage devices in recent years,as they combine the advantages of high-energy Zn-ion batteries and high-power ***,the development of ZHSCs is still in its infancy and there are many bottlenecks to *** particular,the challenge induced by the limited ion adsorption capability of carbon-positive electrodes severely restricts the energy density of ***,it has become a key issue to design novel carbon-positive electrodes that enable high energy density yet do not deteriorate the intrinsic power capability and long-term *** study focuses on recent achievements in synthesis,morphology,and electrochemical performance of various carbon materials applied in *** modification strategies to optimize their electrochemical performance are briefly *** addition,current challenges and future opportunities in this field are also *** review will be beneficial to provide an organized framework for the research systems of carbon-positive electrodes and develop novel ZHSCs with high energy density.

关键词： carbon energy density graphene zinc-ion hybrid supercapacitors

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γ-MnO2 nanorods/graphene composite as efficient cathode for advanced rechargeable aqueous zinc-ion battery

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Journal of Energy Chemistry 2020年第4期29卷 182-187页

作者： Chao Wang Yinxiang Zeng Xiang Xiao Shijia Wu Guobin Zhong Kaiqi Xu Zengfu Wei Wei Su xihong lu Electric Power Research Institute of Guangdong Power Grid Co. Ltd.Guangzhou 510080GuangdongChina MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-Carbon Chem&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275GuangdongChina

Aqueous Zn//MnO2 batteries are emerging as promising large-scale energy storage devices owing to their cost-effectiveness,high safety,high output voltage,and energy ***,the MnO2 cathode suffers from intrinsically poor rate performance and rapid capacity ***,we remove the roadblock by compositing MnO2 nanorods with highly conductive graphene,which remarkably enhances the electrochemical properties of the MnO2 *** from the boosted electric conductivity and ion diffusion rate as well as the structural protection of graphene,the Zn//MnO2-graphene battery presents an admirable capacity of 301 mAh g^-1 at 0.5 A g^-1,corresponding to a high energy density of 411.6 Wh kg^-*** at a high current density of 10 A g^-1,a decent capacity of 95.8 mAh g^-1 is still obtained,manifesting its excellent rate ***,an impressive power density of 15 kW kg^-1 is achieved by the Zn//MnO2-graphene battery.

关键词： γ-MnO2 Graphene Zinc-ion battery High-capacity cathode

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Structural regulation strategies towards high performance organic materials for next generation aqueous Zn-based batteries

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ChemPhysMater 2022年第2期1卷 86-101页

作者： Diyu Xu Haozhe Zhang Lijun Zhou Xingyuan Gao xihong lu MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-carbon Chem&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China College of Chemistry and Material Science Engineering Technology Development Center of Advanced Materials&Energy Saving and Emission Reduction in Guangdong Colleges and UniversitiesGuangdong University of EducationGuangzhou 510303China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Environmental degradation has promoted the exploitation of novel energy-storage *** en-ergy technologies,including supercapacitors and aqueous batteries,are highly desirable for energy storage *** them,aqueous zinc-based batteries(AZBs)are highly valued because of their inherent safety and low *** class of emerging materials favorably employed in these devices are organic cathodes,featuring resource renewability,cost-effectiveness,and adjustable electrochemical properties via facile structural modi-fication compared to the conventional inorganic *** date,various types of organic compounds have been developed and applied to *** paper comprehensively reviews the mechanisms involved in organic electrode material reactions,highlighting the structural modifications,including morphological,molecular,func-tional group,crystal,and electronic structures,affecting the final device ***,the prospects of practical applications of zinc/organic aqueous battery are delineated.

关键词： Aqueous batteries Zn-based batteries Organic materials Structural regulation Morphological structure

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