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| 1 | Perovskite light-emitting/detecting bifunctional fibres for wearable LiFi communication显示文摘Light fidelity(LiFi),which is emerging as a compelling technology paradigm shifting the common means of highcapacity wireless communication technologies,requires wearable and full-duplex compact design because of its great significance in smart wearables as well as the‘Internet of Things’.However,the construction of the key component of wearable full-duplex LiFi,light-emitting/detecting bifunctional fibres,is still challenging because of the conflicting process between carrier separation and recombination,as well as the highly dynamic film-forming process.Here,we demonstrate light-emitting/detecting bifunctional fibres enabled by perovskite QDs with hybrid components.The hybrid perovskite inks endow fibres with super-smooth QD films.This,combined with the small exciton binding energy and high carrier mobility of perovskite QDs,enables successful integration of electroluminescence and photodetection into monofilaments.The bifunctional fibres possess the narrowest electroluminescence full width at half maximum of ~19 nm and,more importantly,the capability for simultaneously transmitting and receiving information.The successful fabrication of narrow emission full-duplex LiFi fibres paves the way for the fabrication and integration of low crosstalk interoperable smart wearables. | Qingsong Shan Changting Wei Yan Jiang Jizhong Song Yousheng Zou Leimeng Xu Tao Fang Tiantian Wang Yuhui Dong Jiaxin Liu Boning Han Fengjuan Zhang Jiawei Chen Yongjin Wang Haibo Zeng | 2020 | Light(Science & Applications)2020，9，1： | 7 |
| 2 | Mixed polyanion cathode materials:Toward stable and high-energy sodium-ion batteries显示文摘Sodium-ion batteries(SIBs)are considered as one of the most fascinating alternatives to lithium-ion batteries for grid-scale energy storage applications because of the low cost and wide abundance of sodium resources.Among various cathode materials,mixed polyanion compounds come into the spotlight as promising electrode materials due to their superior electrochemical properties,such as high working voltage,long cycling stability,and facile reaction kinetics.In this review,we summarize the recent development in the exploration of different mixed polyanion cathode materials for SIBs.We provide a comprehensive understanding of the structure-composition-performance relationship of mixed polyanion cathode materials together with the discussion of their sodium storage mechanisms.It is anticipated that further innovative works on the material design of advanced cathode materials for batteries can be inspired. | Along Zhao Yongjin Fang Xinping Ai Hanxi Yang Yuliang Cao | 2021 | Journal of Energy Chemistry2021，30，9： | 4 |
| 3 | Understanding of the sodium storage mechanism in hard carbon anodes显示文摘Hard carbon has been regarded as the most promising anode material for sodiumion batteries(SIBs)due to its low cost,high reversible capacity,and low working potential.However,the uncertain sodium storage mechanism hinders the rational design and synthesis of high-performance hard carbon anode materials for practical SIBs.During the past decades,tremendous efforts have been put to stimulate the development of hard carbon materials.In this review,we discuss the recent progress of the study on the sodium storage mechanism of hard carbon anodes,and the effective strategies to improve their sodium storage performance have been summarized.It is anticipated that hard carbon anodes with high electrochemical properties will be inspired and fabricated for large-scale energy storage applications. | Xiaoyang Chen Changyu Liu Yongjin Fang Xinping Ai Faping Zhong Hanxi Yang Yuliang Cao | 2022 | Carbon Energy2022，4，6： | 3 |
| 4 | Photodynamic Therapy for Symptomatic Circumscribed Macular Choroidal Hemangioma in Chinese Patients显示文摘 | Yongjin Zhang Wei Liu Yanwen Fang Jiang Qian Gezhi Xu Wenji Wang Lei Li Ying Shen Qiaoyun Gao | 2010 | American Journal of Ophthalmology2010，，5： | 1 |
| 5 | Boosting the sodium storage performance of Prussian blue analogues via effective etching显示文摘Prussian blue analogues(PBAs)have gained significant popularity as cathode materials for sodium-ion batteries(SIBs)due to their remarkable features such as high capacity and convenient synthesis.However,PBAs usually suffer from kinetic problems during the electrochemical reactions due to sluggish Na~+diffusion in the large crystals,resulting in low-capacity utilization and inferior rate capability.In this study,we present a facile etching method aiming at activating the sodium storage sites and accelerating the Na~+transport of Na_2NiFe(CN)_6(denoted as NaNiHCF)by precisely controlling its morphologies.A progressive corner passivation phenomenon occurred in NaNiHCF during the etching process,which led to a substantial augmentation of the specific surface area as the morphology transitioned from a standard cube to a dice shape.Notably,by controlling the etching time,the obtained NaNiHCF-3 electrode exhibited boosted electrochemical performance with high reversible capacity of 83.5mAh g~(-1)(98.2%of its theoretical capacity),superior rate capability(71.2 mAh g~(-1)at 10 C),and stable cycling life-span at different temperatures.Both experimental and computational methods reveal the remarkably reversible structural evolution process and improved Na~+diffusion coefficient.We believe that this work can serve as an indispensable reference to tailor the structure of PBAs to obtain improved electrochemical performance. | Yanan Zhao Jian Peng Kean Chen Laibing Luo Hui Chen Hang Zhang Shulei Chou Xiangmin Feng Weihua Chen Ruoyu Cao Xinping Ai Yongjin Fang Yuliang Cao | 2023 | Science China Chemistry2023，66，11： | 0 |
| 6 | Towards extreme fast charging of 4.6 V LiCoO_(2) via mitigating high-voltage kinetic hindrance显示文摘High-voltage LiCoO_(2)(LCO) is an attractive cathode for ultra-high energy density lithium-ion batteries(LIBs) in the 3 C markets.However,the sluggish lithium-ion diffusion at high voltage significantly hampers its rate capability.Herein,combining experiments with density functional theory(DFT) calculations,we demonstrate that the kinetic limitations can be mitigated by a facial Mg^(2+)+Gd^(3+)co-doping method.The as-prepared LCO shows significantly enhanced Li-ion diffusion mobility at high voltage,making more homogenous Li-ion de/intercalation at a high-rate charge/discharge process.The homogeneity enables the structural stability of LCO at a high-rate current density,inhibiting stress accumulation and irreversible phase transition.When used in combination with a Li metal anode,the doped LCO shows an extreme fast charging(XFC) capability,with a superior high capacity of 193.1 mAh g^(-1)even at the current density of 20 C and high-rate capacity retention of 91.3% after 100 cycles at 5 C.This work provides a new insight to prepare XFC high-voltage LCO cathode materials. | Yu Tang Jun Zhao He Zhu Jincan Ren Wei Wang Yongjin Fang Zhiyong Huang Zijia Yin Yalan Huang Binghao Zhang Tingting Yang Tianyi Li Leighanne CGallington Si Lan Yang Ren Qi Liu | 2023 | Journal of Energy Chemistry2023，，3： | 0 |
| 7 | Superior performance for lithium storage from an integrated composite anode consisting of SiO-based active material and current collector显示文摘Silicon-based material is considered to be one of the most promising anodes for the next-generation lithium-ion batteries(LIBs)due to its rich sources,nontoxicity,low cost and high theoretical specific capacity.However,it cannot maintain a stable electrode structure during repeated charge/discharge cycles,and therefore long cycling life is difficult to be achieved.To address this problem,herein a simple and efficient method is developed for the fabrication of an integrated composite anode consisting of SiO-based active material and current collector,which exhibits a core-shell structure with nitrogen-doped carbon coating on SiO/P micro-particles.Without binder and conductive agent,the volume expansion of SiO active material in the integrated composite anode is suppressed to prevent its pulverization.At a current density of 500 mA·g−1,this integrated composite anode exhibits a reversible specific capacity of 458 mA·h·g−1 after 200 cycles.Furthermore,superior rate performance and cycling stability are also achieved.This work illustrates a potential method for the fabrication of integrated composite anodes with superior electrochemical properties for high-performance LIBs. | Junqiang Hua Hailiang Chu Ying Zhu Tingting Fang Shujun Qiu Yongjin Zou Cuili Xiang Kexiang Zhang Bin Li Huanzhi Zhang Fen Xu Lixian Sun | 2020 | Frontiers of Materials Science2020，14，3： | 0 |
| 8 | An advanced low-cost cathode composed of graphene-coated Na_(2.4)Fe_(1.8)(SO_(4))_(3) nanograins in a 3D graphene network for ultra-stable sodium storage显示文摘Iron-based electrodes have attracted great attention for sodium storage because of the distinct cost effectiveness.However,exploring suitable iron-based electrodes with high power density and long duration remains a big challenge.Herein,a spray-drying strategy is adopted to construct graphene-coated Na_(2.4)Fe_(1.8)(SO_(4))_(3) nanograins in a 3D graphene microsphere network.The unique structural and compositional advantages endow these electrodes to exhibit outstanding electrochemical properties with remarkable rate performance and long cycle life.Mechanism analyses further explain the outstanding electrochemical properties from the structural aspect. | Yongjin Fang Qi Liu Xiangming Feng Weihua Chen Xinping Ai Liguang Wang Liang Wang Zhiyuan Ma Yang Ren Hanxi YangYuliang Cao | 2021 | Journal of Energy Chemistry2021，30，3： | 0 |
| 9 | Investigation on drawing process of Bi-2223/Ag wires using racetrack-type dies:Simulation and experiments显示文摘The traditional rolling process of Bi-2223/Ag wires with circular sections is an inhomogeneous process. For the purpose of achieving a uniform filaments distribution, a novel technique for round wire through racetrack-type dies during the last several passes of drawing is necessarily brought forward. In order to investigate the processing behaviors of superconducting filaments, a numerical model for the three passes of racetrack drawing was constructed, and subsequently, the optimization of three racetrack-type dies was designed based on the simulation results. Then the three passes of racetrack drawing was applied to fabricate Bi-2223/Ag tape and the density distribution of each filament of the wire was studied by Vickers microhardness. The experimental results showed that the racetrack drawing can obtain dense superconducting filaments, and improve the mechanical properties and critical current of the final tape. | LU YongJin ZENG Pan LEI LiPing QU TiMing FANG Gang SUN JianFeng | 2009 | Science China(Technological Sciences)2009，52，8： | 0 |
| 10 | Amorphous NaVOPO_(4)as a High-Rate and Ultrastable Cathode Material for Sodium-Ion Batteries显示文摘The low cost and profusion of sodium resources make sodium-ion batteries(SIBs)a potential alternative to lithium-ion batteries for grid-scale energy storage applications.However,the use of conventional cathode materials for Na-ion intercalation/deintercalation cannot satisfy the requirements of high-powered and long lifespan performance due to multiphase transition and lattice confinement. | Yongjin Fang Jiexin Zhang Faping Zhong Xiangming Feng Weihua Chen Xinping Ai Hanxi Yang Yuliang Cao | 2021 | CCS Chemistry2021，3，10： | 0 |
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