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8篇 您的检索式:作者名="Heyi LI"
    题名 作者 年代 出处 被引量
1Recent progress on three-dimensional nanoarchitecture anode materials for lithium/sodium storage显示文摘High-performance batteries with high density and low cost are needed for the development of largescale energy storage fields such as electric vehicles and renewable energy systems.The anode with threedimensional(3D)nanoarchitecture is one of the most attractive candidates for high-performance lithiumion batteries(LIBs)and sodium-ion batteries(SIBs)due to its efficient electron/ion transport and high active material mass loading.Although some important breakthroughs have been made in 3D nanoarchitecture anode materials,more improvements are still needed for high cycling stability and high energy density.Herein,the latest research progress of 3D nanoarchitecture anode materials for LIBs and SIBs is reviewed,including nanoporous metal,nanoporous graphene,and their derived foams.Specifically,the storage properties of Li/Na ions,the kinetics of ion/electron transport,and specific chemical interactions are discussed based on the structure design.In addition,the research strategies and structural characteristics of 3D nanoarchitecture anode materials are summarized,providing a reference for the further development of LIBs and SIBs.Meanwhile,the future research directions of LIBs and SIBs have also prospected.Zhijia Zhang Yuefang Chen Shihao Sun Kai Sun Heyi Sun Hongwei Li Yuhe Yang Mengmeng Zhang Weijie Li Shulei Chou Huakun Liu Yong Jiang 2022Journal of Materials Science & Technology2022,,24:2
2Preliminary Design for a China ITER Test Blanket Module显示文摘FENG Kaiming PAN Chuanhong ZHANG Guoshu LUO Deli ZHOU Zhiwei YANG Yongwei WANG Xiaoyu HU Gang YUAN Tao CHEN Zhi WANG Heyi LI Zhenqiang ZHAO Zhou ZHENG Guoyao 2006Southwestern Institute of Physics Annual Report2006,,1:1
3Gate-tunable large-scale flexible monolayer MoS_(2)devices for photodetectors and optoelectronic synapses显示文摘Photodetectors and optoelectronic synapses are vital for construction of artificial visual perception system.However,the hardware implementations of optoelectronic-neuromorphic devices based on conventional architecture usually suffer from poor scalability,light response range,and limited functionalities.Here,large-scale flexible monolayer MoS_(2)devices integrating photodetectors and optoelectronic synapses over the entire visible spectrum in one device have been realized,which can be used in photodetection,optical communication,artificial visual perception system,and optical artificial neural network.By modulating gate voltages,we enable MoS_(2)-based devices to be photodetectors and also optoelectronic synapses.Importantly,the MoS_(2)-based optoelectronic synapses could implement many synaptic functions and neuromorphic characteristics,such as short-term memory(STM),long-term memory(LTM),paired-pulse facilitation(PPF),long-term potentiation(LTP)/long-term depression(LTD),and“learning-experience”behavior.Furthermore,an associative learning behavior(the classical conditioning Pavlov’s dog experiment)was emulated using paired stimulation of optical and voltage pulses.These results facilitate the development of MoS_(2)-based multifunctional optoelectronic devices with a simple device structure,showing great potential for photodetection,optoelectronic neuromorphic computing,human visual systems mimicking,as well as wearable and implantable electronics.Na Li Congli He Qinqin Wang Jianshi Tang Qingtian Zhang Cheng Shen Jian Tang Heyi Huang Shuopei Wang Jiawei Li Biying Huang Zheng Wei Yutuo Guo Jiahao Yuan Wei Yang Rong Yang Dongxia Shi Guangyu Zhang 2022Nano Research2022,15,6:1
4Investigation of polyimide-mica hybrid films for cryogenic applications显示文摘Zhang Heyi Fu Yunshao Li R K 2005Composites Science and Technology2005,65,1112:1
5Research progress on low-power artificial intelligence of things(AIoT)chip design显示文摘An artificial intelligence of things(AIoT)chip is a critical hardware component in edge devices that supports data acquisition and processing in the artificial intelligence(AI)era.In this paper,we introduce the architecture and circuit techniques for AIoT systems as well as the design challenges associated with them.To address the design challenges,we describe our design approaches to improve energy efficiency from the standpoints of system architecture,AI computing,and data acquisition circuits.Meanwhile,we present our most recent research progress and state-of-the-art AIoT chip demonstrations at a prestigious conference.Our design techniques improve power and energy efficiency by orders of magnitude on corresponding state of the arts(SOTA),allowing for an advanced AIoT chip design.Le YE Zhixuan WANG Tianyu JIA Yufei MA Linxiao SHEN Yihan ZHANG Heyi LI Peiyu CHEN Meng WU Ying LIU Yiqi JING Hao ZHANG Ru HUANG 2023Science China(Information Sciences)2023,66,10:0
6Host-Guest Strategy Enabling Nonhalogenated Solvent Processing for High-Performance All-Polymer Hosted Solar Cells显示文摘The power conversion efficiencies(PCEs)of all-polymer solar cells(all-PSCs),usually processed from low-boiling-point and toxic sol-vents,have reached high values of 18%.However,poor miscibility and uncontrollable crystallinity in polymer blends lead to a nota-ble drop in the PCEs when using green solvents,limiting the practical development of all-PSCs.Herein,a third component(guest)BTO was employed to optimize the miscibility and enhance the crystallinity of PM6/PY2Se-F host film processed from green solvent toluene(TL),which can effectively suppress the excessive aggregation of PY2Se-F and facilitate a nano-scale interpenetrating net-work morphology for exciton dissociation and charge transport.As a result,TL-processed all-polymer hosted solar cells(all-PHSCs)exhibited an impressive PCE of 17.01%.Moreover,the strong molecular interaction between the host and guest molecules also en-hances the thermal stability of the devices.Our host-guest strategy provides a unique approach to developing high-efficiency and stable all-PHSCs processed from green solvents,paving the way for the industrial development of all-PHSCs.Yuting Huang Haiyang Chen Qunping Fan Ziyuan Chen Junyuan Ding Heyi Yang Zhe Sun Rui Zhang Weijie Chen Changduk Yang Feng Gao Yaowen Li 2023Chinese Journal of Chemistry2023,41,9:0
7Host-Guest Active Layer Enabling Annealing-Free,Nonhalogenated Green Solvent Processing for High-Performance Organic Solar Cells显示文摘Recent advances in non-fullerene acceptors(NFAs)like Y6 have pushed the power conversion efficiencies(PCEs)of organic solar cells(OSCs)above 19%.However,the harsh fabrication conditions,such as the use of the highly volatile chloroform(CF)solvent and the thermal annealing process,are not suitable for large-area printing technologies and environmental standards.Here,a series of guest molecules,BT2O,BTO,and BT4O,are designed and synthesized with different numbers of oligo ethylene glycol(OEG)repeating units in side chains.All these guest molecules could tune the crystallization kinetics of the annealing-free host-guest active layers by inducing the self-assembly of Y6 in non-halogenated paraxylene(PX)solution.The increasing number of OEG repeating units in guest molecules could enhance the molecular assembly ability but molecular stacking steric hindrance simultaneously.Therefore,BTO with three OEG repeating units blended with PM6:PM7:Y6 delivers the highest PCE of 17.78%.Our results demonstrate controlling the crystallization kinetics via delicate side-chain engineering of guest molecules is an effective way to achieve efficient OSCs in non-halogenated solution.Weiwei Sun Haiyang Chen Ben Zhang Qinrong Cheng Heyi Yang Ziyuan Chen Guang Zeng Junyuan Ding Weijie Chen Yaowen Li 2022Chinese Journal of Chemistry2022,40,24:0
8Effects of Polygonatum sibiricum Polysaccharide on Antioxidant Capacity of the Liver in High-fat Diet Rats显示文摘[Objectives]This study was conducted to investigate the effects of Polygonatum sibiricum polysaccharide(PSP)on antioxidant function in high-fat diet obese rats.[Methods]Thirty five healthy male SD rats were selected to establish an obesity model after feeding a high-fat for 8 weeks.They were then randomly divided into a normal group(NC),a high-fat diet group(HF),and an HF+P.sibiricum polysaccharide group[HF+PSP,300 mg/(kg·d)].After 6 weeks of PSP intervention,the serum and liver of rats were collected,and the activity of aspartate transaminase(AST)and alanine aminotransferase(ALT)in serum,the enzyme activity of superoxide dismutase(SOD),catalase(CAT)and glutathione peroxidase(GSH-Px)and malondialdehyde(MDA)in liver tissue were measured.The pathological changes of liver tissue were observed by HE staining.[Results]Compared with the HF group,PSP could effectively inhibit obesity caused by high-fat diet.It reduced body weight and serum AST and ALT levels,increased the contents of T-SOD,CAT and GSH-Px in the liver,and inhibited the accumulation of MDA content,thereby reducing damage to liver cells caused by a high-fat diet.It indicated that PSP could effectively inhibit obesity in high-fat diet rats and enhance their antioxidant capacity.[Conclusions]This study provides a reference for the study of the antioxidant capacity of PSP.Heyi GONG Zhifeng LI Chenzhong JIN Yihong HU Yan WANG 2023Agricultural Biotechnology2023,12,4:0
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