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| 1 | Review and prospect of NiCo_(2)O_(4)-based composite materials for supercapacitor electrodes显示文摘Supercapacitors known as typical electrochemical capacitors have been considered as one of the most promising candidates of energy storage systems owing to their advantages such as high-power density,long life span and lower production cost.The electrode materials play a crucial role on properties of supercapacitors.Hence,many researches have been focused on the development of novel electrode materials for high-performance supercapacitors.NiCo_2O_4as supercapacitor electrode material has drawn more and more attentions in recent years due to its outstanding advantages,such as high theoretical capacity,low cost,natural abundance and easy of synthesis.However,the NiCo_2O_4always suffer from severe capacity deterioration because of the low electrical conductivity and small surface area.Hence,it is necessary to systematically and comprehensively summarize the progress in understanding and modifying NiCo_2O_4-based materials from various aspects.In this review,the structure and synthesis method of NiCo_2O_4-based materials are discussed in detail.And then,the major goal of this review is to highlight new progress in using proposed strategies to improve the cycling stability and rate capacity of NiCo_2O_4-based materials,including synthesis,control of special morphologies and design of composite materials.Finally,an insight into the future research and development of Ni Co_2O_4-based materials for supercapacitors is prospected. | Yanmei Li Xiao Han Tingfeng Yi Yanbing He Xifei Li | 2019 | Journal of Energy Chemistry2019，28，4： | 14 |
| 2 | High-performance self-assembly MnCo2O4 nanosheets for asymmetric supercapacitors显示文摘In this study,MnCo2O4 nanosheets were proposed to be utilized as an electrode material for supercapacitors.A two-step hydrothermal method with post-annealing treatment was employed in preparation of the nanostructures.MnCo2O4 electrode delivered a high specific capacitance of 2000 F g^-1 at 0.5 A g^-1,remarkable high-rate capability of 1150 F g^-1 at 20 A g^-1,and an excellent cycling stability of 92.3%at 5 A g^-1 after 5000 cycles.It is found that a three-electrode supercapacitor based on MnCo2O4 exhibits a promising electrochemical performance,better than the other similar materials,benefited from the synergistic effects of MnCo2O4 nanosheets.In fact,the self-assembly of nanosheets structure with high specific surface area and mesoporous structure can potentially enhance the electrochemical performance of supercapacitors. | Jianwei Li Dongbin Xiong Linzhe Wang Maleki Kheimeh Sari Hirbod Xifei Li | 2019 | Journal of Energy Chemistry2019，28，10： | 4 |
| 3 | Carbon nanomaterials and their composites for supercapacitors显示文摘As a type of energy storage device between traditional capacitors and batteries,the supercapacitor has the advantages of energy saving and environmental protection,high power density,fast charging and discharging speed,long cycle life,and so forth.One of the key factors affecting the performance of supercapacitor is the electrode material.Carbon materials,such as carbon nanotube,graphene,activated carbon,and carbon nanocage,are most widely concerned in the application of supercapacitors.The synergistic effect of composites can often obtain excellent results,which is one of the common strategies to increase the electrochemical performance of supercapacitors.To further improve the performance of binary composites,it is a relatively simple method to increase the components as the“bridge”between the two materials to form the ternary composites.The review mainly introduces the current research progress of supercapacitors with pure carbon nanomaterials and multistage carbon nanostructures(composites)as electrodes.The characteristics and application directions of different pure carbon nanomaterials are introduced in detail.Different ways of multilevel structure(material)composite have their own effects on the development of high-performance supercapacitors.We also highlight the recent advances related to these fields and provide our insight into high-energy supercapacitors. | Mingzhu Zhong Miao Zhang Xifei Li | 2022 | Carbon Energy2022，4，5： | 2 |
| 4 | Ion association tailoring SEI composition for Li metal anode protection显示文摘Electrolyte additives play an important role in suppressing lithium dendrites through tailoring the composition/property of the SEI,however lacking of additives can achieve high performances both in ether and carbonate electrolytes hinders further enhancement of the high voltage lithium^-metal batteries.Here,lithium perchlorate(LiClO4)has been presented as an excellent additive to meet the above requirements.An optimized chemical composition of SEI can be achieved through the formation of ionic association.Our results indicate that the LiClO4 behaves like a catalyst,which promotes LiTFSI to form a better SEI to inhibit further reaction.Superior coulombic efficiencies and cycling performances were obtained both in ether and carbonate electrolytes.This study paves a new pathway for designing bi-soluble additives for safe lithium metal batteries. | Yitao He Yaohui Zhang Peng Yu Fei Ding Xifei Li Zhihong Wang Zhe Lv Xianjie Wang Zhiguo Liu Xiqiang Huang | 2020 | Journal of Energy Chemistry2020，29，6： | 2 |
| 5 | Surface Doping vs.Bulk Doping of Cathode Materials for Lithium-Ion Batteries:A Review显示文摘To address the capacity degradation,voltage fading,structural instability and adverse interface reactions in cathode materi-als of lithium-ion batteries(LIBs),numerous modification strategies have been developed,mainly including coating and doping.In particular,the important strategy of doping(surface doping and bulk doping)has been considered an effective strategy to modulate the crystal lattice structure of cathode materials.However,special insights into the mechanisms and effectiveness of the doping strategy,especially comparisons between surface doping and bulk doping in cathode materials,are still lacking.In this review,recent significant progress in surface doping and bulk doping strategies is demonstrated in detail by focusing on their inherent differences as well as effects on the structural stability,lithium-ion(Li-ion)diffusion and electrochemical properties of cathode materials from the following mechanistic insights:preventing the exposure of reactive Ni on the surface,stabilizing the Li slabs,mitigating the migration of transition metal(TM)ions,alleviating unde-sired structural transformations and adverse interface issues,enlarging the Li interslab spacing,forming three-dimensional(3D)Li-ion diffusion channels,and providing more active sites for the charge-transfer process.Moreover,insights into the correlation between the mechanisms of hybrid surface engineering strategies(doping and coating)and their influences on the electrochemical performance of cathode materials are provided by emphasizing the stabilization of the Li slabs,the enhancement of the surface chemical stability,and the alleviation of TM ion migration.Furthermore,the existing challenges and future perspectives in this promising field are indicated. | Huaming Qian Haoqi Ren Ying Zhang Xianfeng He Wenbin Li Jingjing Wang Junhua Hu Hong Yang Hirbod Maleki Kheimeh Sari Yu Chen Xifei Li | 2022 | Electrochemical Energy Reviews2022，5，4： | 2 |
| 6 | Microwave-assisted hydrothermal synthesis of nnnostructured spinel Li4Ti5O12 as anode materials for lithium ion batteries显示文摘 | Jian Liu Xifei Li Jinli Yang | | 0，，： | 1 |
| 7 | Extraction of valuable metals from lepidolite显示文摘 | Qunxuan Yan Xinhai Li Zhixing Wang Xifei Wu Huajun Guo Qiyang Hu Wenjie Peng Jiexi Wang | 2012 | Hydrometallurgy2012，，： | 1 |
| 8 | Extraction of valuable metals from lepidolite显示文摘 | Qunxuan Yan Xinhai Li Zhixing Wang Xifei Wu Huajun Guo Qiyang Hu Wenjie Peng Jiexi Wang | 2012 | Hydrometallurgy2012，，： | 1 |
| 9 | Superior energy capacity of graphene nanosheets for a nonaqueous lithium-oxygen battery显示文摘 | LI Yongliang WANG Jiajun LI Xifei | 2011 | Chemical Communications2011，47，33： | 1 |
| 10 | Time-frequency analysis of Li solid-phase diffusion in spherical active particles under typical discharge modes显示文摘Li transient concentration distribution in spherical active material particles can affect the maximum power density and the safe operating regime of the electric vehicles(EVs). On one hand, the quasiexact/exact solution obtained in the time/frequency domain is time-consuming and just as a reference value for approximate solutions;on the other hand, calculation errors and application range of approximate solutions not only rely on approximate algorithms but also on discharge modes. For the purpose to track the transient dynamics for Li solid-phase diffusion in spherical active particles with a tolerable error range and for a wide applicable range, it is necessary to choose optimal approximate algorithms in terms of discharge modes and the nature of active material particles. In this study, approximation methods,such as diffusion length method, polynomial profile approximation method, Padé approximation method,pseudo steady state method, eigenfunction-based Galerkin collocation method, and separation of variables method for solving Li solid-phase diffusion in spherical active particles are compared from calculation fundamentals to algorithm implementation. Furthermore, these approximate solutions are quantitatively compared to the quasi-exact/exact solution in the time/frequency domain under typical discharge modes, i.e., start-up, slow-down, and speed-up. The results obtained from the viewpoint of time-frequency analysis offer a theoretical foundation on how to track Li transient concentration profile in spherical active particles with a high precision and for a wide application range. In turn, optimal solutions of Li solid diffusion equations for spherical active particles can improve the reliability in predicting safe operating regime and estimating maximum power for automotive batteries. | Qiu-An Huang Yuxuan Bai Liang Wang Juan Wang Fangzhou Zhang Linlin Wang Xifei Li Jiujun Zhang | 2022 | Journal of Energy Chemistry2022，31，4： | 1 |
| 11 | Carbon Black Cathodes for Lithium Oxygen Batteries: Influence of Porosity and Heteroatom-doping显示文摘 | Yongliang Li Xifei Li Dongsheng Geng Yongji Tang Ruying Li Jean-Pol Dodelet Michel Lefèvre Xueliang Sun | 2013 | Carbon2013，，： | 1 |
| 12 | 3D porous LiFePO 4 /graphene hybrid cathodes with enhanced performance for Li-ion batteries显示文摘 | Jinli Yang Jiajun Wang Dongniu Wang Xifei Li Dongsheng Geng Guoxian Liang Michel Gauthier Ruying Li Xueliang Sun | 2012 | Journal of Power Sources2012，，： | 1 |
| 13 | Nitrogen-doped carbon nanotubes as cathode for lithium-air batteries显示文摘 | Li Yongliang Wang Jiajun Li Xifei | 2011 | Electrochemistry Communications2011，13，7： | 1 |
| 14 | Superior energy capacity of graphene nanosheets for a nonaqueous lithium-oxygen battery显示文摘 | Li Yongliang Wang Jiajun Li Xifei | 2011 | Chemical Communications (Cambridge)2011，47，33： | 1 |
| 15 | a novel coating onto LiMn2 O4 cathode with increased lithium ionbattery performance 显示文摘 | Zeng Jiesheng Li Minsi Li Xifei | 2014 | Applied Surface Science2014，317，： | 1 |
| 16 | Tin-alloy heterostructures encapsulated in amorphous carbon nanotubes as hy- brid anodes in rechargeable lithium ion batteries显示文摘 | Li Xifei Zhong Yu Cai Mei | 2013 | Electrochimica Acta2013，89，： | 1 |
| 17 | Free-standing graphene–carbon nanotube hybrid papers used as current collector and binder free anodes for lithium ion batteries显示文摘 | Yuhai Hu Xifei Li Jiajun Wang Ruying Li Xueliang Sun | 2013 | Journal of Power Sources2013，，： | 1 |
| 18 | Nitrogen/sulphur dual-doped hierarchical carbonaceous fibers boosting potassium-ion storage显示文摘The carbon materials as anode electrodes have been widely studied for potassium ion batteries(PIBs).However,the large size of potassium ions prevents their intercalation/deintercalation,resulting in poor storage behaviors.Herein,a novel design of N/S codoped hierarchical carbonaceous fibers(NSHCF)formed from nanosheets self-assembled by catalyzing Aspergillus niger with Sn is reported.The asprepared NSHCF at 600℃(NSHCF-600)exhibits a high reversible capacity of 345.4 m Ah g^(-1) at 0.1 A g^(-1) after 100 cycles and an excellent rate performance of 124.5 m Ah g^(-1) at 2 A g^(-1).The excellent potassium storage performance can be ascribed to the N/S dual-doping,which enlarges interlayer spacing(0.404 nm)and introduces more defects.The larger interlayer spacing and higher pyridinic N active sites can promote K ions diffusion and storage.In addition,the ex situ transmission electron microscopy reveals the high reversibility of potassiation/depotassiation process and structural stability. | Junzhi Li Junming Cao Xifei Li Junhua Hu Yaohui Zhang Hirbod Maleki Kheimeh Sari Chunxiao Lv IgorVZatovsky Wei Han | 2021 | Journal of Energy Chemistry2021，30，4： | 1 |
| 19 | Nitrogen-doped carbon nanotubes as cathode for lithium-air batteries显示文摘 | Li Yongliang Wang Jiajun Li Xifei | 2011 | ElectrochemistlcCommunications2011，13，4： | 1 |
| 20 | Enriched gestation activates the IGF pathway to evoke embryo-adult benefits to prevent Alzheimer’s disease显示文摘Background:Building brain reserves before dementia onset could represent a promising strategy to prevent Alzheimer’s disease(AD),while how to initiate early cognitive stimulation is unclear.Given that the immature brain is more sensitive to environmental stimuli and that brain dynamics decrease with ageing,we reasoned that it would be effective to initiate cognitive stimulation against AD as early as the fetal period.Methods:After conception,maternal AD transgenic mice(3×Tg AD)were exposed to gestational environment enrichment(GEE)until the day of delivery.The cognitive capacity of the offspring was assessed by the Morris water maze and contextual fear-conditioning tests when the offspring were raised in a standard environment to 7 months of age.Western blotting,immunohistochemistry,real-time PCR,immunoprecipitation,chromatin immunoprecipitation(ChIP)assay,electrophysiology,Golgi staining,activity assays and sandwich ELISA were employed to gain insight into the mechanisms underlying the beneficial effects of GEE on embryos and 7–10-month-old adult offspring.Results:We found that GEE markedly preserved synaptic plasticity and memory capacity with amelioration of hallmark pathologies in 7–10-m-old AD offspring.The beneficial effects of GEE were accompanied by global histone hyperacetylation,including those at bdnf promoter-binding regions,with robust BDNF mRNA and protein expression in both embryo and progeny hippocampus.GEE increased insulin-like growth factor 1(IGF1)and activated its receptor(IGF1R),which phosphorylates Ca^(2+)/calmodulin-dependent kinase IV(CaMKIV)at tyrosine sites and triggers its nuclear translocation,subsequently upregulating histone acetyltransferase(HAT)and BDNF transcription.The upregulation of IGF1 mimicked the effects of GEE,while IGF1R or HAT inhibition during pregnancy abolished the GEE-induced CaMKIV-dependent histone hyperacetylation and BDNF upregulation.Conclusions:These findings suggest that activation of IGF1R/CaMKIV/HAT/BDNF signaling by gestational environment enrichment may serve as a promising strategy to delay AD progression. | Enjie Liu Qiuzhi Zhou Ao-Ji Xie Mengzhu Li Shujuan Zhang Hezhou Huang Zhenyu Liuyang Yali Wang Bingjin Liu Xiaoguang Li Dongsheng Sun Yuping Wei Xiaochuan Wang Qun Wang Dan Ke Xifei Yang Ying Yang Jian-Zhi Wang | 2019 | Translational Neurodegeneration2019，8，1： | 1 |
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