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Cationic ordering transition in oxygen-redox layered oxide cathodes

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Carbon Energy 2024年第1期6卷 197-206页

作者： Xinyan Li Ang Gao Qinghua Zhang Hao Yu Pengxiang Ji Dongdong Xiao Xuefeng Wang Dong Su Xiaohui Rong Xiqian Yu Hong Li yong-sheng hu Lin Gu Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijingChina College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijingChina Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials School of Materials Science and EngineeringTsinghua UniversityBeijingChina Beijing Advanced Innovation Center for Materials Genome Engineering Huairou DivisionInstitute of PhysicsChinese Academy of SciencesBeijingChina

Understanding the structural origin of the competition between oxygen 2p and transition-metal 3d orbitals in oxygen-redox(OR)layered oxides is eminently desirable for exploring reversible and high-energy-density Li/Na-ion ***,we reveal the correlation between cationic ordering transition and OR degradation in ribbon-ordered P3-Na_(0.6)Li_(0.2)Mn_(0.8)O_(2) via in situ structural *** two different voltage windows,the OR capacity can be improved approximately twofold when suppressing the in-plane cationic ordering *** find that the intralayer cationic migration is promoted by electrochemical reduction from Mn^(4+)to Jahn–Teller Mn^(3+)and the concomitant NaO_(6) stacking transformation from triangular prisms to octahedra,resulting in the loss of ribbon ordering and electrochemical ***-principles calculations reveal that Mn^(4+)/Mn^(3+)charge ordering and alignment of the degenerate eg orbital induce lattice-level collective Jahn–Teller distortion,which favors intralayer Mn-ion migration and thereby accelerates OR *** findings unravel the relationship between in-plane cationic ordering and OR reversibility and highlight the importance of superstructure protection for the rational design of reversible OR-active layered oxide cathodes.

关键词： cationic ordering layered oxide cathodes oxygen redox sodium-ion batteries

Ni-based cathode materials for Na-ion batteries

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Nano Research 2019年第9期12卷 2018-2030页

作者： Chenglong Zhao Yaxiang Lu Liquan Chen yong-sheng hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Yangtze River Delta Physics Research Center Co. Ltd Liyang 213300China

Na-ion batteries(NIBs)have attracted significant attention owing to Na being an abundant resource that is uniformly distributed in the Earth's *** 3d transition metal(TM)ions have been thoroughly investigated as charge compensators in single or multiple composition systems to enhance the electrochemical performance of cathodes for the practical *** this review,the composition-structure-property relationship of Ni-based cathodes has been reviewed as a design perspective for NIB'S *** typical Ni-based cathode materials have bee n systematically summarized and comparatively analyzed,and it is dem on strated that Ni io ns can be used to provide charge ***,Ni-based cathodes present high reversible capacity owing to the multi-electron redox reactions and suitable redox pote ntial of Ni-ions ***,con sidering the abundan ce,cost,and hygroscopic properties of Ni eleme nt,the content of 0.15-0.35 per formula can be optimal for enhancing the performance of ***,further perspectives on designing Ni?containing cathodes,including Ni-rich layered cathodes,have been discussed,which could promote the practical applications of NIBs for grid-scale energy storage in future.

关键词： Na-ion battery Ni-based cathode Ni27Ni^3+/Ni^4+ charge compensation high specific capacity

Nano-sized carboxylates as anode materials for rechargeable lithium-ion batteries

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Journal of Energy Chemistry 2014年第3期23卷 269-273页

作者： Xiaoyan Wu Jie Ma yong-sheng hu Hong Li Liquan Chen Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences

Nano-sized caiboxylales Na2C7H3NO4 and Na2C6H2N2O4 were prepared and investigated as anode materials for lithium-ion *** carboxylates exhibit high reversible capacities around 190 mAh/g above a cut-off voltage of 0.8 V ***＋/*** improving the safety of the *** addition,good rate performance and long cycle life of these carboxylates make them promising candidates as anode materials for lithium-ion batteries.

关键词： carboxylates Na2C7H3NO4 Na2C6H2N2O4 anode lithium-ion batteries

Flexible Na batteries

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InfoMat 2020年第1期2卷 126-138页

作者： Chenglong Zhao Yaxiang Lu Liquan Chen yong-sheng hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijingChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina Yangtze River Delta Physics Research Center Co.Ltd LiyangChina

Flexible energy storage devices have gained significant attention because of the increasing needs of bendable displays,wearable electronics,and flexible *** Na-based rechargeable batteries are the promising power sources in such products due to their low cost and wide *** this review,we firstly introduce the structural superiority of flexible Na-based batteries and summarize their main components including cathodes,electrolytes,and ***,fabrication of their flexible components is discussed in detail,with specific emphasis on material selection,particularly for solid-state *** is followed by an overview highlighting recent progress in the development of prototypes of flexible Na-ion batteries and ***,perspectives on future challenges for the development of flexible Na batteries are proposed.

关键词： anode cathode electrolyte flexible device Na battery

Anionic redox reaction mechanism in Na-ion batteries

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Chinese Physics B 2022年第9期31卷 95-102页

作者： Xueyan Hou Xiaohui Rong Yaxiang Lu yong-sheng hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100190China

Na-ion batteries(NIBs),as one of the next-generation rechargeable battery systems,hold great potential in large-scale energy storage applications owing to the abundance and costeffectiveness of sodium *** the extensive exploration of electrode materials,the relatively low attainable capacity of NIBs hinders their practical *** recent years,the anionic redox reaction(ARR)in NIBs has been emerging as a new paradigm to deliver extra capacity and thus offers an opportunity to break through the intrinsic energy density *** this review,the fundamental investigation of the ARR mechanism and the latest exploration of cathode materials are summarized,in order to highlight the significance of reversible anionic redox and suggest prospective developing directions.

关键词： energy storage Na-ion battery anionic redox reaction

High-temperature treatment induced carbon anode with ultrahigh Na storage capacity at low-voltage plateau

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Science Bulletin 2018年第17期63卷 1125-1129页

作者： Chenglong Zhao Qidi Wang Yaxiang Lu Baohua Li Liquan Chen yong-sheng hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and Devices Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing 100049 China Division of Energy and Environment Engineering Laboratory for the Next Generation Power and Energy Storage Batteries Graduate School at Shenzhen Tsinghua Universty Shenzhen 518055 Chino School of Materials Science and Engineering Tsinghua University Beijing 100084 China

Sodium-ion batteries （NIBs） show great prospect on the energy storage applications benefiting from thei low cost and the abundant Na resources despite the expected lower energy density compared wit lithium-ion batteries （LIBs）. To further enhance the competitive advantage, especially in energy densit3 developing the high-capacity carbon anode materials can be one of the effective approaches to realiz this goal. Herein, we report a novel carbon anode made from charcoal with a high capacity of ~400 Ah g i, wherein about 85% （〉330 mAh g^-1） of its total capacity is derived from the long plateau regio below ~0.1 V. which differs fiom those of typical hard carbon materials （~300 mAh g^-l） in NIBs but i similar to the graphite anode in LIBs. When coupled with air-stable ***.22Feo.3oMno.4802 oxid cathode, a high-energy density of ~240 Wh kg^-1 is achieved with good rate capability and cyclin stability. The discovery of this promising carbon anode is expected to further improve the energy densit of NIBs towards large-scale electrical energy storage.

关键词： Sodium-ion battery Na storage Hard carbon Charcoal High-temperature carbonization Low-voltage plateau

Recent Progress in Presodiation Technique for High-Performance Na-Ion Batteries

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Chinese Physics Letters 2021年第11期38卷 83-90页

作者： Fei Xie Yaxiang Lu Liquan Chen yong-sheng hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China

Na-ion batteries(NIBs) have been attracting growing interests in recent years with the increasing demand of energy storage owing to their dependence on more abundant Na than Li. The exploration of the industrialization of NIBs is also on the march, where some challenges are still limiting its step. For instance, the relatively low initial Coulombic efficiency(ICE) of anode can cause undesired energy density loss in the full cell. In addition to the strategies from the sight of materials design that to improve the capacity and ICE of electrodes, presodiation technique is another important method to efficiently offset the irreversible capacity and enhance the energy density. Meanwhile, the slow release of the extra Na during the cycling is able to improve the cycling *** this review, we would like to provide a general insight of presodiation technique for high-performance *** recent research progress including the principles and strategies of presodiation will be introduced, and some remaining challenges as well as our perspectives will be discussed. This review aims to exhibit the basic knowledge of presodiation to inspire the researchers for future studies.

关键词： Recent Progress in Presodiation Technique for High-Performance Na-Ion Batteries

Advanced Na metal anodes

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Journal of Energy Chemistry 2018年第6期27卷 1584-1596页

作者： Chenglong Zhao Yaxiang Lu Jinming Yue Du Pan Yuruo Qi yong-sheng hu Liquan Chen Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and Devices Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190 China

Na metal anode, benefiting from its high theoretical capacity and lowest electrochemical potential, ~sone of the most favorable candidates for future Na-based batteries with high energy density. Dendritegrowth, volume change and high reactivity are the formidable challenges in terms of good cycling perfor-mance and high Coulombic efficiency as well as an expected safety guarantee of Na metal anode for thepractical application. Solid electrolyte interphase （SEI） layer as an indispensable component of a battery,its formation and stability play the critical role in the feasibility of Na metal anode. In this review, wefirst discuss the current consideration and challenges of Na metal anode, and then summarize severalstrategies to suppress dendrite growth and improve electrochemical performance, including interface en-gineering, electrolyte composition, electrode construction, and so on. Finally, the conclusion and futureperspective of potential development on Na metal anode are proposed.

关键词： Na metal anode Solid electrolyte interphase Electrolyte Dendrite Na-metal batteries

Failure analysis with a focus on thermal aspect towards developing safer Na-ion batteries

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Chinese Physics B 2020年第4期29卷 41-48页

作者： Yuqi Li Yaxiang Lu Liquan Chen yong-sheng hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China Yangtze River Delta Physics Research Center Co.Ltd Liyang 213300China

Safety requirements stimulate Na-based batteries to evolve from high-temperature Na–S batteries to room-temperature Na-ion batteries(NIBs).Even so,NIBs may still cause thermal runaway due to the external unexpected accidents and internal high activity of electrodes or electrolytes,which has not been comprehensively summarized *** this review,we summarize the significant advances about the failure mechanisms and related strategies to build safer NIBs from the selection of electrodes,electrolytes and the construction of electrode/electrolyte *** the safety risk,the thermal behaviors are emphasized which will deepen the understanding of thermal stability of different NIBs and accelerate the exploitation of safe NIBs.

关键词： Na-ion batteries safety issue electrodes electrolytes solid electrolyte interphase thermal runaway failure analysis