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Nanostructured Mn-based oxides as high-performance cathodes for next generation Li-ion batteries

Journal of Energy Chemistry 2021年第8期30卷 547-571,I0012页

作者： Guodong Hao qinzhi lai Hongzhang Zhang School of Chemistry and Chemical Engineering Mudanjiang Normal UniversityMudanjiang 157011China Department of Chemistry College of SciencesNortheastern UniversityShenyang 110819China Division of Energy Storage Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Mn-based oxides have been regarded as a promising family of cathode materials for high-performance lithium-ion batteries,but the practical applications have been limited because of severe capacity deterioration(such as Li Mn O_(2)and Li Mn_(2)O_(4))as well as further complications from successive structure changes during cycling,low initial coulombic efficiency(such as Li-rich cathode)and oxidization of organic carbonate solvents at high charge potential(such as Li Ni0.5 Mn1.5 O4).Large amounts of efforts have been concentrated on resolving these issues towards practical applications,and many vital progresses have been carried ***,the primary target of this review is focused on different proposed strategies and breakthroughs to enhance the rate performance and cycling stability of nanostructured Mn-based oxide cathode materials for Li-ion batteries,including morphology control,ion doping,surface coatings,composite *** combination of delicate architectures with conductive species represents the perspective ways to enhance the conductivity of the cathode materials and further buffer the structure transformation and strain during *** last,based on the elaborated progress,several perspectives of Mn-based oxide cathodes are summarized,and some possible attractive strategies and future development directions of Mn-based oxide cathodes with enhanced electrochemical properties are *** review will offer a detailed introduction of various strategies enhancing electrochemical performance and give a novel viewpoint to shed light on the future innovation in Mn-based oxide cathode materials,which benefits the design and construction of high-performance Mn-based oxide cathode materials in the future.

关键词： Mn-based oxide Cathode material Electrochemical property Modification

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A non-aqueous Li/organosulfur semi-solid flow battery

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Chinese Chemical Letters 2018年第5期29卷 716-718页

作者： Chenhui Wang qinzhi lai Pengcheng Xu Xianfeng Li Huamin Zhang Division of energy storage Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Dalian-116023 China University of Chinese Academy of Sciences Beijing 100039 China

Non-aqueous flow batteries have attracted extensive attention due to the advantages of wide voltagewindow, high energy density and wide operating temperature and so on. Herein, tetramethylthiuramdisulfide （TMTD） with high intrinsic capacity （223 mAh/g） and high solubility （-1 mol/L in chloroform） isinvestigated as the positive active material of the non-aqueous LiJdisulfide semi-solid flow battery. Theelectrochemical activity and reversibility are investigated by cyclic voltammetry and linear scanvoltammetry. This Li/TMTD battery with a high cell voltage of 3.36 V achieves coulombic efficiency of 99%,voltage efficiency of 73% and energy efficiency of 72% at the current density of 5 mA/cm2 with activematerial concentration of 0.1 mol/L. Moreover, the LiJTMTD battery can operate for 100 cycles withoutobvious efficiency decay, indicating good stability.

关键词： Energy storage Batteries Organosulfur High energy density High cell voltage

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Enlarging Zn deposition space via regulating Sn-induced effective interface for high areal capacity zinc-based flow battery

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Journal of Energy Chemistry 2023年第11期86卷 579-586,I0012页

作者： Yuning Sun Siyu Zhang Qiming Zhang Lantong Cui Pengfei Wang Yanbin Yin Qian Wang qinzhi lai School of Materials Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina College of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004HebeiChina Division of Energy Storage Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Department of Advanced Energy Materials College of Materials Science and EngineeringSichuan UniversityChengdu 610064SichuanChina

Zinc-based flow batteries(ZFBs)have aroused great favor in large-scale energy storage due to the high security and low ***,the low areal capacity arising from the limited space for Zn plating hinders the further ***,a novel carbon felt-Sn-carbon felt sandwich host(CSCH)is designed and *** from the strong chemical absorption and the dehydration effect on Zn(H_(2)O)_(6)^(2+),the Sn activation layer in the CSCH demonstrates the lowest comprehensive resistance for Zn ***,Zn is induced to nucleate preferentially on the Sn activation layer,and grows towards the membrane,regulating the spatial distribution of Zn electrochemical deposits,which remarkably improves the areal capacity and cyclic stability of Zn ***,the zinc-bromine flow batteries equipped with CSCH electrodes can achieve the ultra-high areal capacity of 120 mA h cm^(-2)at 80 mA cm^(-2),and run stably for 140 h with average energy efficiency of 80.3%in the extreme condition(80 mA cm^(-2),80 mA h cm^(-2)).This innovative work will inspire future advanced designs for high areal capacity electrodes in ZFBs.

关键词： Zinc-based flow batteries High areal capacity Sn-induced deposition,Zn deposition depth

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Non-aqueous lithium bromine battery of high energy density with carbon coated membrane

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Journal of Energy Chemistry 2017年第4期26卷 639-646页

作者： Xiaoli Xi Xianfeng Li Chenhui Wang qinzhi lai Yuanhui Cheng Pengcheng Xu Huamin Zhang Division of Energy Storage Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100039China Collaborative Innovation Center of Chemistry for Energy Materials Dalian 116023LiaoningChina

Flow batteries with high energy density and long cycle life have been pursued to advance the progress of energy storage and grid application. Non-aqueous batteries with wide voltage windows represent a promising technology without the limitation of water electrolysis, but they suffer from low electrolyte concentration and unsatisfactory battery performance. Here, a non-aqueous lithium bromine rechargeable battery is proposed, which is based on Br;/Br;and Li;/Li as active redox pairs, with fast redox kinetics and good stability. The Li/Br battery combines the advantages of high output voltage（;.1 V）,electrolyte concentration（3.0 mol/L）, maximum power density（29.1 m W/cm;） and practical energy density（232.6 Wh/kg）. Additionally, the battery displays a columbic efficiency（CE） of 90.0%, a voltage efficiency（VE） of 88.0% and an energy efficiency（EE） of 80.0% at 1.0 m A/cm;after continuously running for more than 1000 cycles, which is by far the longest cycle life reported for non-aqueous flow batteries.

关键词： Non-aqueous Battery Lithium Bromine Energy-storage

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Investigation on the performance evaluation method of flow batteries

Investigation on the performance evaluation method of flow b...

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第一届全国储能科学与技术大会

作者： ZHENG Qiong XING Feng LI Xianfeng LIU Tao lai qinzhi NING Guiling ZHANG Huamin Division of Energy Storage Dalian Institute of Chemical PhysicsChinese Academy of Sciences

Performance evaluation method is very important for the research on flow ***-discharging test is the most typical evaluation method for flow ***,the polarization curves,together with the associated power density curves,which are commonly employed in fuel cells,have come into use for flow batteries’ performance *** on the investigation of performance evaluation method,it is confirmed that the charging-discharging test is optimal for flow batteries’ performance evaluation.A comparison of voltage losses(voltage efficiency,VE) can be clearly delivered from the polarization curves,which are quite practical for fuel cells’ performance *** for flow batteries,apart from VE,coulombic efficiency(CE),energy efficiency(EE),utilization of electrolyte(UE) and capacity stability should be seriously considered during charging-discharging ***,CE and UE are inaccessible;accordingly EE and capacity stability can’t be detected from polarization ***,the polarization curve is improper to serve as a performance evaluation method for flow *** the premise of a proper CE,a rough performance evaluation for flow batteries can be achieved via the polarization *** peak power density is of limited significance in practical use due to the extremely low EE and low energy storage capacity obtained at that point.

关键词： performance evaluation method flow batteries charging-discharging performance test polarization curve

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直接甲醇燃料电池活化过程中膜电极变化

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稀有金属材料与工程 2008年第3期37卷 476-479页

作者：张健尹鸽平邵玉艳王振波赖勤志哈尔滨工业大学黑龙江哈尔滨150001

采用水煮电极和恒压放电两种方法活化膜电极(MEA),考察了活化前后膜电极及电极上阳极(PtRu/C)与阴极(Pt/C)催化剂的变化情况。电极极化曲线、电化学阻抗谱(EIS)测试发现,活化后的电极性能有较大提高,膜电极的电阻降低。X射线衍射(XRD)... 详细信息

采用水煮电极和恒压放电两种方法活化膜电极(MEA),考察了活化前后膜电极及电极上阳极(PtRu/C)与阴极(Pt/C)催化剂的变化情况。电极极化曲线、电化学阻抗谱(EIS)测试发现,活化后的电极性能有较大提高,膜电极的电阻降低。X射线衍射(XRD)的分析表明膜电极上阳极和阴极催化剂都发生聚集长大。分别采用CO吸附溶出法和氢吸脱附法测量MEA的阳极和阴极催化剂的电化学活性面积(ESA),结果表明,尽管催化剂的颗粒长大,但经过恒压放电活化的阳极和阴极的电化学活性面积分别提高了20.9%和5.0%。同时发现恒压放电活化的方法相对于水煮电极活化的方法更有利于提高膜电极性能。

关键词：直接甲醇燃料电池膜电极活化电化学活性面积

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钠离子电池用高性能锑基负极材料的调控策略研究进展

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物理化学学报 2022年第11期38卷 45-71页

作者：李莹来雪琦曲津朋赖勤志伊廷锋东北大学材料科学与工程学院沈阳110819 东北大学秦皇岛分校资源与材料学院河北秦皇岛066004 河北省电介质与电解质功能材料重点实验室河北秦皇岛066004

锑(Sb)具有高的理论比容量、较小的电极极化、合适的Na^(+)脱嵌电位、价格低廉以及环境友好的优势,而成为一种具有较大应用前景的钠离子电池负极材料。但是,Sb基负极材料的一个重要挑战是在循环过程中高比容量伴随着大的体积变化,进而... 详细信息

锑(Sb)具有高的理论比容量、较小的电极极化、合适的Na^(+)脱嵌电位、价格低廉以及环境友好的优势,而成为一种具有较大应用前景的钠离子电池负极材料。但是,Sb基负极材料的一个重要挑战是在循环过程中高比容量伴随着大的体积变化,进而导致活性材料粉化,并从集流体上脱落,这大大限制了其在钠离子电池领域的大规模应用。因此,如何解决Sb基负极材料充放电过程中体积膨胀问题对于高性能的钠离子电池设计是至关重要的。本文详细综述和讨论了Sb基材料的结构-性能关系及其在钠离子电池中的应用,详细介绍了钠离子电池Sb基负极材料在氧化还原反应机理、形貌设计、结构-性能关系等方面的最新研究进展。本综述的主要目的是探讨影响Sb基负极材料性能的决定因素,从而提出有前途的改性策略,以提高其可逆容量和循环稳定性。最后,对Sb基钠离子电池负极材料的未来发展、面临的挑战和前景进行了展望。本文可为Sb负极材料的构建和优化提供具体的观点,阐明了Sb基负极材料未来的发展方向,从而促进钠离子电池的快速发展和实际应用。

关键词：钠离子电池反应机理 Sb 负极材料优化策略

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水系锌锂离子液流电池正极材料研究

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储能科学与技术 2015年第5期4卷 487-492页

作者：赖勤志李先锋张华民中国科学院大连化学物理研究所辽宁大连116023

近年来,水系锂离子电池具有功率高、环境污染小等优点而受到广泛关注。文章采用在碱性体系中稳定性较好的Li Fe PO4作为正极材料,石墨板为负极,组装锌锂离子电池;通过SEM分析、XRD分析、循环伏安测试、线性扫描伏安测试等手段研究了锂... 详细信息

近年来,水系锂离子电池具有功率高、环境污染小等优点而受到广泛关注。文章采用在碱性体系中稳定性较好的Li Fe PO4作为正极材料,石墨板为负极,组装锌锂离子电池;通过SEM分析、XRD分析、循环伏安测试、线性扫描伏安测试等手段研究了锂的嵌入脱出以及锌的沉积溶解反应的反应活性及正极材料的稳定性。

关键词：水系锂离子电池磷酸铁锂电解液稳定性

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