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The Effect of Cd on the Electrochromic Properties of NiO_xH_y film

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Chinese Chemical Letters 1998年第5期9卷 473-476页

作者： Cao, XY zhang, WL zhang, GY zhang, wh Lin, YN Yuan, HT Zhou, ZX zhang, YS Nankai Univ Inst New Energy Mat Chem Tianjin 300071 Peoples R China Nankai Univ Photon Ctr Tianjin 300071 Peoples R China

The effects of 2.8% Cd on the electrochromic properties of NiOxHy film were studied. The film was electrodeposited on both the polished Ni plate and conductive ITO glass to study its electrochemical and optical characteristics respectively. It was found that Cd could decrease the working voltage and increase the oxygen evolution voltage as well as the transmittance difference of colored and breached states of the film. However, it has little effect on the kinetic process.

关键词： NiOxHy film Cd electrochromic properties

In Situ Polymer Gel Electrolyte in Boosting Scalable Fibre Lithium Battery Applications

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Nano-Micro Letters 2024年第11期16卷 170-173页

作者： Jie Luo Qichong zhang Key Laboratory of Multifunctional Nanomaterials and Smart Systems Chinese Academy of SciencesSuzhou Institute of Nano-Tech and Nano-Bionics398 Ruoshui RoadSuzhou 215123People’s Republic of China

The poor interfacial stability not only deteriorates fibre lithium-ion batteries(FLBs)performance but also impacts their scalable *** efficiently address these challenges,*** Peng team proposed a generalized channel structures strategy with optimized in situ polymerization technology in their recent *** resultant FLBs can be woven into different-sized powering textiles,providing a high energy density output of 128 wh kg^(-1) and simultaneously demonstrating good durability even under harsh *** a promising strategy expands the horizon in developing FLB with particular polymer gel electrolytes,and significantly ever-deepening understanding of the scaled wearable energy textile system toward a sustainable future.

关键词： High-performance fibre lithium batteries Gel electrolytes Channel structures Stable interface Scalable application

12.6μm-Thick Asymmetric Composite Electrolyte with Superior Interfacial Stability for Solid-State Lithium-Metal Batteries

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Nano-Micro Letters 2024年第9期16卷 397-409页

作者： Zheng zhang Jingren Gou Kaixuan Cui Xin zhang Yujian Yao Suqing Wang Haihui Wang Beijing Key Laboratory for Membrane Materials and Engineering Department of Chemical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510000People’s Republic of China

Solid-state lithium metal batteries(SSLMBs)show great promise in terms of high-energy-density and high-safety ***,there is an urgent need to address the compatibility of electrolytes with high-voltage cathodes/Li anodes,and to minimize the electrolyte thickness to achieve highenergy-density of ***,we develop an ultrathin(12.6μm)asymmetric composite solid-state electrolyte with ultralight areal density(1.69 mg cm^(−2))for *** electrolyte combining a garnet(LLZO)layer and a metal organic framework(MOF)layer,which are fabricated on both sides of the polyethylene(PE)separator separately by tape *** PE separator endows the electrolyte with flexibility and excellent mechanical *** LLZO layer on the cathode side ensures high chemical stability at high *** MOF layer on the anode side achieves a stable electric field and uniform Li flux,thus promoting uniform Li^(+)*** to the well-designed structure,the Li symmetric battery exhibits an ultralong cycle life(5000 h),and high-voltage SSLMBs achieve stable cycle *** assembled pouch cells provided a gravimetric/volume energy density of 344.0 wh kg^(−1)/773.1 wh L^(−1).This simple operation allows for large-scale preparation,and the design concept of ultrathin asymmetric structure also reveals the future development direction of SSLMBs.

关键词： Solid-state lithium metal batteries Composite solid-state electrolyte Ultrathin asymmetric structure Pouch cells

Defect engineered nickel hydroxide nanosheets for advanced pseudocapacitor electrodes

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Nano Research 2024年第6期17卷 5233-5242页

作者： Yaohang Gu Yuxuan zhang Xuanyu Wang Ateer Bao Bo Ni Haijun Pan Xiaoyan zhang Xiwei Qi School of Materials Science and Engineering Northeastern UniversityShenyang 110189China College of Metallurgy and Energy North China University of Science and TechnologyTangshan 063210China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province School of Resources and MaterialsNortheastern University at QinhuangdaoQinhuangdao 066004China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004China

while the past years have witnessed great achievement in pseudocapacitors,the inauguration of electrode materials of high-performance still remains a formidable ***,the capacity and rate capability of the electrode depends largely on its electrical conductivity,which ensures fast charge transfer kinetics in both the grain bulk and grain ***,nickel hydroxides with oxygen vacancies are facilely fabricated via a hydrothermal *** active materials exhibit a high specific capacitance of 3250 F·g^(−1)and a high areal of capacitance of 14.98 F·cm^(−2)at 4.6 mA·cm^(−2).The asymmetric supercapacitor device based on our material delivers a high energy density of~71.6 wh·kg^(−1)and a power density of~17,300 W·kg^(−1)and could retain~95%of their initial capacitance even after 30,000 *** addition,the defect-rich hydroxides demonstrate higher electrical conductivity as well as dielectric constant,which is responsible for the superior pseudocapacitive *** new scientific strategy in terms of taking the advantages of oxygen vacancies might open up new opportunities for qualified pseudocapacitive materials of overall high performances not only for nickel hydroxides but also for other metal hydroxides/oxides.

关键词： pseudocapacitors nickel hydroxides oxygen vacancies electrical conductivity

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阳光下步行获益更多(译文)

中华高血压杂志 2021年第6期29卷 596-597页

作者：刘瑾(译) 练桂丽(审校) zhang R Chen H Liu YX zhang wh Lu Q Yamanishi H Yamanishi C Yamanishi K Qiu YL Ye XF Huang ZR zhang BY Chen YF Zheng YQ zhang YF Guo ZZ Dong D Liu TX Dai YQ Xu MH Hao Y Li SZ Cai FY Wang RQ Guo XY Zhu DH zhang HY Zeng ZT Higashino H 机构不详

我刊2018年第10期刊登了一篇上海交通大学医学院陈红教授团队的研究《缓步行走3km对血压心率的影响及其辅助降压的β-内啡肽机制》,发现缓步行走3km可降低正常血压者及高血压患者的血压。后来作者又发现阳光下与非阳光条件下的步行存在... 详细信息

我刊2018年第10期刊登了一篇上海交通大学医学院陈红教授团队的研究《缓步行走3km对血压心率的影响及其辅助降压的β-内啡肽机制》,发现缓步行走3km可降低正常血压者及高血压患者的血压。后来作者又发现阳光下与非阳光条件下的步行存在差别,因此进一步设计了对比阳光下与非阳光步行降压效果与机制的研究。根据初步研究结果,作者于2019年在《中国药理学报(英文版)》"Correspondence(通信)"栏目中刊登了"Sunny walking counts more"一文,经作者推荐和《中国药理学报(英文版)》编辑部同意,我刊将其翻译为中文版本,以飨读者。

关键词：中国药理学报中文版本正常血压血压心率上海交通大学医学院阳光步行

Carbon nanocages bridged with graphene enable fast kinetics for dual-carbon lithium-ion capacitors

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Green Energy & Environment 2024年第3期9卷 573-583页

作者： Shani Li Yanan Xu Wenhao Liu Xudong zhang Yibo Ma Qifan Peng Xiong zhang Xianzhong Sun Kai Wang Yanwei Ma Institute of Electrical Engineering Chinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China Innovation Academy for Green Manufacture Beijing100190China Beijing Institute of Technology Beijing100081China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001China

Lithium-ion capacitors(LICs) combining the advantages of lithium-ion batteries and supercapacitors are considered a promising nextgeneration energy storage device. However, the sluggish kinetics of battery-type anode cannot match the capacitor-type cathode, restricting the development of LICs. Herein, hierarchical carbon framework(HCF) anode material composed of 0D carbon nanocage bridged with 2D graphene network are developed via a template-confined synthesis process. The HCF with nanocage structure reduces the Li^(+) transport path and benefits the rapid Li^(+) migration, while 2D graphene network can promote the electron interconnecting of carbon nanocages. In addition, the doped N atoms in HCF facilitate to the adsorption of ions and enhance the pseudo contribution, thus accelerate the kinetics of the anode. The HCF anode delivers high specific capacity, remarkable rate capability. The LIC pouch-cell based on HCF anode and active HCF(a-HCF) cathode can provide a high energy density of 162 wh kg^(-1) and a superior power density of 15.8 kW kg^(-1), as well as a long cycling life exceeding 15,000cycles. This study demonstrates that the well-defined design of hierarchical carbon framework by incorporating 0D carbon nanocages and 2D graphene network is an effective strategy to promote LIC anode kinetics and hence boost the LIC electrochemical performance.

关键词： Hierarchical carbon framework Nanocage ZIF Graphene Lithium-ion capacitors

Enhancing electrolyte ion diffusion via direct ink writing pillar array structure of graphene electrodes for high-performance microsupercapacitors

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Nano Research 2024年第7期17卷 6203-6211页

作者： Yan zhang Huandi zhang Xiaoxiao Wang Cheng Tang Xiaowei Shi Zehua Zhao Jiamei Liu Guolong Wang Jianfeng Shen Lei Li State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and EngineeringXi’an Jiaotong University28 Xianning West RoadXi’an 710049China Center for Materials Chemistry Frontier Institute of Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China Instrument Analysis Center of Xi'an Jiaotong University Xi’an Jiaotong University28 Xianning West RoadXi’an 710049China Institute of special materials and technology Fudan UniversityShanghai 200433China

The graphene-based microsupercapacitors(MSCs)suffer from graphene aggregation issue in *** reduces the electrolyte ions transportation in the electrodes to degrade the charge storage ability of MSCs,hampering their practical *** the electrolyte ions transportation in the electrodes can boost the charge storage ability of ***,we design and experimentally realize pillar array structure of graphene electrodes for MSCs by direct ink writing *** graphene electrodes with pillar array structure increase the contact area with electrolyte and short the electrolyte ions transport path,facilitating electrolyte ions transport in *** MSCs exhibit high areal capacitance of 25.67 mF·cm^(−2),high areal energy density of 20.54μwh·cm^(−2),and high power density of 1.45 mW·cm^(−2).One single MSCs can power timer for 10 min and pressure sensor more than 160 min,showing high practical application *** work provides a new avenue for developing high performance MSCs.

关键词： microsupercapacitors pillar array structure direct ink writing areal energy density ion transport

High-performance localized high-concentration electrolytes by diluent design for long-cycling lithium metal batteries

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Chinese Chemical Letters 2024年第4期35卷 244-247页

作者： Zhe Wang Li-Peng Hou Qian-Kui zhang Nan Yao Aibing Chen Jia-Qi Huang Xue-Qiang zhang College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

Electrolyte design is essential for stabilizing lithium metal anodes and localized high-concentration electrolyte(LHCE) is a promising one. However, the state-of-the-art LHCE remains insufficient to ensure long-cycling lithium metal anodes. Herein, regulating the solvation structure of lithium ions in LHCE by weakening the solvating power of diluents is proposed for improving LHCE performance. A diluent,1,1,2,2,3,3,4,4-octafluoro-5-(1,1,2,2-tetrafluoroethoxy) pentane(OFE), with weaker solvating power is introduced to increase the proportion of aggregates(an anion interacts with more than two lithium ions,AGG-n) in electrolyte compared with the commonly used 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether(TTE). The decomposition of AGG-n in OFE-based LHCE intensifies the formation of anion-derived solid electrolyte interphase and improves the uniformity of lithium deposition. Lithium metal batteries with OFE-based LHCE deliver a superior lifespan of 190 cycles compared with 90 cycles of TTE-based LHCE under demanding conditions. Furthermore, a pouch cell with OFE-based LHCE delivers a specific energy of 417 wh/kg and undergoes 49 cycles. This work provides guidance for designing high-performance electrolytes for lithium metal batteries.

关键词： Lithium metal anodes Electrolyte Diluents Solid electrolyte interphase Pouch cells

Ultra-high-rate Bi anode encapsulated in 3D lignin-derived carbon framework for sodium-ion hybrid capacitors

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Rare Metals 2024年第3期43卷 1037-1047页

作者： Ze-Hua Lin Xue-Qing Qiu Xi-Hong Zu Xiao-Shan zhang Lei Zhong Shi-Rong Sun Shu-Hua Hao Ying-Juan Sun Wen-Li zhang School of Chemical Engineering and Light Industry Guangdong University of Technology(GDUT)Guangzhou510006China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang515200China School of Advanced Manufacturing Institute of Green Chemistry and Advanced MaterialsGuangdong University of TechnologyJieyang515200China

Bismuth(Bi),as an alloy-based anode material,has attracted much atte ntion in the developme nt of sodiumion hybrid capacitors(SIHCs)due to its high theoretical ***,the volume expansion of the Bi-based anode during the sodiation/desodiation process results in limited rate *** the present work,a porous Bi-based composite was constructed by a one-step hydrothermal method,and Bi was encapsulated in ligninderived nitrogen-doped porous carbon(Bi@LNPC)after *** obtained Bi nanoparticles could effectively adapt to the strain and shorten the diffusion distance of Na^(+).In addition,porous carbon skeleton provides a rigid conductive network for electronic ***,the assembled sodium-ion half-cell with Bi@LNPC anode shows ultra-high-rate *** the current density was enhanced from 0.1 to 50 A·g^(-1),the specific capacity decreased slightly from 351.5 to 342.8 mAh·g^(-1).Even at an extremely high current density of 200 A·g^(-1),it retains 81.3%capacity retention when compared to a current density of 1 A·g^(-1).The SIHCs assembled by Bi@LNPC show a high energy density of 63 wh·kg^(-1).This work provides an effective method for developing high-rate Bi anode materials for sodium-ion hybrid capacitors(SIHCs)and sodium-ion batteries(SIBs).

关键词： Bismuth Lignin Sodium-ion batteries Sodium-ion hybrid capacitors Rate Porous carbon