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| 1 | Ni_(2)P/NiMoP heterostructure as a bifunctional electrocatalyst for energy-saving hydrogen production显示文摘Electrochemical water splitting is a sustainable and feasible strategy for hydrogen production but is hampered by the sluggish anodic oxygen evolution reaction(OER).Herein,an effective approach is introduced to significantly decrease the cell voltage by replacing the anodic OER with a urea oxidation reaction(UOR).A Ni_(2)P/NiMoP nanosheet catalyst with a hierarchical architecture is uniformly grown on a nickel foam(NF)substrate through a simple hydrothermal and phosphorization method.The Ni_(2)P/NiMoP achieves impressive HER activity,with a low overpotential of only 22 mV at 10 mA cm^(-2)and a low Tafel slope of 34.5 mV dec^(−1).In addition,the oxidation voltage is significantly reduced from 1.49 V to 1.33 V after the introduction of 0.33 M urea.Notably,a two-electrode electrolyzer employing Ni_(2)P/NiMoP as a bifunctional catalyst exhibits a current density of 10 mA cm^(-2)at a cell voltage of 1.35 V and excellent long-term durability after 80 h. | Tongzhou Wang Xuejie Cao Lifang Jiao | 2021 | eScience2021，1，1： | 10 |
| 2 | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO_(2)显示文摘Electrolytic MnO_(2)/Zn batteries have attracted extensive attention for use in large-scale energy storage applications due to their low cost,high output voltage,safety,and environmental friendliness.However,the poor electrical conductivity of MnO_(2)limits its deposition and dissolution at large capacities,which leads to sluggish reaction kinetics and drastic capacity decay.Here,we report a theory-guided design principle for an electrolytic MnO_(2)/Zn battery co-regulated with transition metal ions that has improved electrochemical performance in terms of deposition and stripping chemistries.We start with first-principles calculations to predict the electrolytic effects of regulating transition metal ions in the deposition/stripping chemistry of the MnO_(2)cathode.The results indicate that with the simultaneous incorporation of strongly electronegative Co and Ni,the MnO_(2)cathode tends to possess more active electron states,faster charge-transfer kinetics,and better electrical conductivity than either MnO_(2)regulated with Co or Ni on their own,or pristine MnO_(2);hence,this co-regulation is beneficial for the cathode solid/liquid MnO_(2)/Mn2t reactions.We then fabricate and demonstrate a novel Co2t and Ni2t coregulated MnO_(2)/Zn(Co-Ni-MnO_(2)/Zn)battery that yields significantly better electrochemical performance,finding that the synergistic regulation of Co and Ni on MnO_(2)can significantly increase its intrinsic conductivity and achieve high rates and Coulombic efficiencies at large capacities.The aqueous Co-Ni-MnO_(2)/Zn battery exhibits a high rate(10C,100 mA cm^(-2)),high Coulombic efficiency(91.89%),and excellent cycling stability(600 cycles without decay)at a large areal capacity of 10 mAh cm^(-2).Our proposed strategy of co-regulation with transition metal ions offers a versatile approach for improving the electrochemical performance of aqueous electrolytic MnO_(2)/Zn batteries in large-scale energy storage applications. | Mingyan Chuai Jinlong Yang Mingming Wang Yuan Yuan Zaichun Liu Yan Xu Yichen Yin Jifei Sun Xinhua Zheng Na Chen Wei Chen | 2021 | eScience2021，1，2： | 8 |
| 3 | Simultaneous regulation of cations and anions in an electrolyte for high-capacity, high-stability aqueous zinc–vanadium batteries显示文摘Safe,inexpensive aqueous zinc-ion batteries(AZIBs)are regarded as promising energy storage devices.However,they still face issues,including dissolution and collapse of the cathode as well as H_(2)evolution and the growth of Zn dendrites on the Zn anode.Herein,we simultaneously regulate the cations and anions in the electrolyte for high-capacity,high-stability aqueous zinc–vanadium(Zn–V)batteries based on a bimetallic cation-doped Na_(0.33)K_(0.1)V_(2)O_(5)·nH_(2)O cathode.We demonstrate that Na^(+) cations suppress cathode dissolution and restrain Zn dendrite growth on the anode via an electrostatic shield effect.We also illustrate that ClO_(4)^(-) anions participate in energy storage at the cathode and are reduced to Cl^(-),generating a protective layer on the Zn anode surface and providing a stable interface to decrease Zn dendrites and H_(2)evolution during long-term cycling.When Na^(+) and ClO_(4)^(-) are introduced into an aqueous ZnSO_(4) electrolyte,a Zn/Zn symmetric cell shows durable and reversible Zn stripping/plating for 1500 h at a current density of 1 mA cm^(-2) and with an area capacity of 1 mAh cm^(-2).Zn/Na_(0.33)K_(0.1)V_(2)O_(5)·nH_(2)O full batteries exhibit a high capacity of 600 mAh g^(-1)at 0.1 A g^(-1) and long-term cycling performance for 5000 cycles,with a capacity of 200 mAh g^(-1) at 20 Ag^(-1). | Ziqing Wang Miao Zhou Liping Qin Minghui Chen Zixian Chen Shan Guo Liangbing Wang Guozhao Fang Shuquan Liang | 2022 | eScience2022，2，2： | 8 |
| 4 | Promoting the sulfur redox kinetics by mixed organodiselenides in high-energy-density lithium-sulfur batteries显示文摘Lithium-sulfur(Li-S)batteries are considered as a highly promising energy storage system due to their ultrahigh theoretical energy density.However,the sluggish kinetics of the complex multi-electron sulfur redox reactions seriously hinders the actual battery performance especially under practical working conditions.Homogeneous redox mediation,through elaborately designing the additive molecules,is an effective approach to promote the sulfur redox kinetics.Herein a promoter of mixed organodiselenides(mixed-Se)is proposed to comprehensively improve the sulfur redox kinetics following the redox comediation principles.Concretely,diphenyl diselenide promotes the liquid-liquid conversion between polysulfides and the solid-liquid conversion regarding lithium sulfide oxidation to polysulfides,while dimethyl diselenide enhances the liquid-solid conversion regarding lithium sulfide deposition.Consequently,the mixed-Se promoter endows a high discharge capacity of 1002 mAh g^(−1)with high sulfur loading of 4.0 mg cm^(−2),a high capacity retention of 81.6%after 200 cycles at 0.5 C,and a high actual energy density of 384 Wh kg^(−1)at 0.025 C in 1.5 Ah-level Li-S pouch cells.This work affords an effective kinetic promoter to construct high-energy-density Li-S batteries and inspires molecular design of kinetic promoters toward targeted energy-related redox reactions. | Meng Zhao Xi-Yao Li Xiang Chen Bo-Quan Li Stefan Kaskel Qiang Zhang Jia-Qi Huang | 2021 | eScience2021，1，1： | 8 |
| 5 | Platinum single-atom catalyst with self-adjustable valence state for large-current-density acidic water oxidation显示文摘The design of active acidic oxygen evolution reaction(OER)catalysts is of paramount importance to achieve efficient large-current-density industrial hydrogen fuel production via water electrolysis.Herein,we develop a Pt-based catalyst with high electrochemical activity for the OER in acidic conditions under a large current.We achieve this by modulating the electronic structure of Pt into a high-valence,electron-accessible Pt1^((2.4+δ)+)(δ=0-0.7)state during the reaction.This electron-accessible Pt1^((2.4+δ)+)single-site catalyst can effectively maintain a large OER current density of 120 mA cm^(-2)for more than 12 h in 0.5 M H_(2)SO_(4) at a low overpotential of 405 mV,and it shows a high mass activity of~3350 A gmetal^(-1)at 10 mA cm^(-2) current density and 232 mV overpotential.Using in situ synchrotron radiation infrared and X-ray absorption spectroscopies,we directly observe in an experiment that a key(*O)-Pt_(1)-C_(2)N_(2) intermediate is produced by the potential-driven structural optimization of square pyramidal Pt_(1)-C_(2)N_(2) moieties;this highly favors the dissociation of H_(2)O over Pt1^(2.4+δ)^(+)sites and prevents over-oxidation and dissolution of the active sites. | Hui Su Mikhail A.Soldatov Victor Roldugin Qinghua Liu | 2022 | eScience2022，2，1： | 7 |
| 6 | Spinel/Post-spinel engineering on layered oxide cathodes for sodium-ion batteries显示文摘Sodium-ion batteries(SIBs)have attracted much scientific interest for use in large-scale energy storage systems because sodium is cheaper than lithium.However,the large radius of Na^(+)and barriers to Na^(+)transport result in sluggish kinetics and complicated structural distortion,leading to unsatisfactory rate capability and poor cycling stability.It therefore is essential to develop an electrode with enhanced kinetics and a stable structure during cycling to improve SIB performance.Among the various layered oxide cathodes,those with a spinel-like structure could play an important role in boosting electron transport because of their excellent intrinsic conductivity,including by coordinating with Na^(+)insertion/extraction.Moreover,thanks to the inherent high stability of the spinel-like phase,it could function as a stabilizer for host cathode structures.This review summarizes recent advances in spinel engineering on layered oxide cathodes to boost Na^(+)transport kinetics and provide structural stability to achieve high-performance SIBs,focusing particularly on post-spinel structures,layered oxide integrated spinel-like structures,and spinel transitions.The insights proposed in this review will be useful for guiding rational structural engineering and design to drive the development of new materials and chemistries in Na-based electrode materials. | Yan-Fang Zhu Yao Xiao Shi-Xue Dou Yong-Mook Kang Shu-Lei Chou | 2021 | eScience2021，1，1： | 6 |
| 7 | Molecular crowding agents engineered to make bioinspired electrolytes for high-voltage aqueous supercapacitors显示文摘The development of low-cost and eco-friendly aqueous electrolytes with a wide voltage window is the key to achieving safe high energy density supercapacitors(SCs).In this work,a molecular crowding electrolyte is prepared by simulating the crowded environment in living cells.Ion transport in the molecular crowding electrolyte can be effectively improved via reducing the molecular weight of the crowding agent,polyethylene glycol(PEG).The results show that PEG with a molecular weight of 200(PEG200)can significantly improve ionic conductivity while maintaining a wide voltage window.These advantages enable commercial activated carbon-based SCs to work at 2.5 V with high energy density,outstanding rate performance and good stability for more than 10,000 cycles.On this basis,three series of molecular crowding electrolytes using sodium perchlorate,lithium perchlorate,and sodium trifluoromethanesulfonate as salts are developed,demonstrating the versatility of PEG200 for wide-voltage aqueous electrolytes. | Mengke Peng Li Wang Longbin Li Zhongyou Peng Xiannong Tang Ting Hu Kai Yuan Yiwang Chen | 2021 | eScience2021，1，1： | 5 |
| 8 | A perspective of ZnCl_(2)electrolytes:The physical and electrochemical properties显示文摘Molten ZnCl_(2)hydrates are ionic liquids at room temperature,which exhibit intriguing physical and electrochemical properties.Continuous efforts have been devoted over several decades to understanding the properties of the molten ZnCl_(2)hydrates that have been dubbed as water-in-salt electrolytes recently.The physical properties of molten ZnCl_(2)hydrates can be described from the perspectives of ions in their speciation and water molecules regarding their chemical environments.Recently,attention has been given to molten ZnCl_(2)hydrates as electrolytes for Zn metal batteries.It was revealed that the physical properties of such electrolytes have rich implications in their electrochemical properties.Therefore,it demands a holistic understanding of the physical and electrochemical properties of molten ZnCl_(2)hydrates to design functional electrolytes to serve high-performing Zn metal batteries.This perspective attempts to review the works that described the properties of concentrated ZnCl_(2)as an ionic liquid and as an emerging electrolyte.The author also provides a perspective to highlight the needs of future research to circumvent the limits of this electrolyte. | Xiulei Ji | 2021 | eScience2021，1，2： | 5 |
| 9 | Nitrate additives for lithium batteries:Mechanisms,applications,and prospects显示文摘Lithium-metal batteries(LMBs)are considered as one of the most promising energy storage devices due to the high energy density and low reduction potential of the Li-metal anode.However,the growth of lithium dendrites results in accumulated dead Li and safety issues,limiting the practical application of LMBs.LiNO_(3)is a well-known additive in lithium-sulfur batteries to regulate the solid-electrolyte interphase(SEI),effectively suppressing the redox shuttle of polysulfides.Recently,other nitrates have been investigated in various electrolyte and battery systems,yielding improved SEI stability and cycling performance.In this review,we provide an overview of various nitrates,including LiNO_(3)for lithium batteries,focusing on their mechanisms and performance.We first discuss the effect of nitrate anions on SEI formation,as well as the cathode-electrolyte interphase(CEI).The solvation behavior regulated by nitrates is also extensively explored.Some strategies to improve the solubility of LiNO_(3)in ester-based electrolytes are then summarized,followed by a discussion of recent progress in the application of nitrates in different systems.Finally,further research directions are presented,along with challenges.This review provides a comprehensive understanding of nitrates and affords new and interesting ideas for the design of better electrolytes and battery systems. | Xiang Li Ruxin Zhao Yongzhu Fu Arumugam Manthiram | 2021 | eScience2021，1，2： | 5 |
| 10 | MXenes: Synthesis strategies and lithium-sulfur battery applications显示文摘Since their discovery in 2011,the two-dimensional transition-metal carbides,nitrides,and carbonitrides known as MXenes have attracted considerable attention due to their metallic conductivity,mechanical properties,and hydrophilicity,which are closely related to their rich surface terminations.As a result,numerous novel synthesis strategies have been explored and new MXenes have been developed.Some have been applied in the field of energy storage,typically lithium–sulfur batteries(LSBs).This review summarizes recent advances in MXenes for LSBs.We first introduce the structural characterization of these materials,then provide detailed summaries of synthetic methods.Next,we give a comprehensive overview of research progress on MXenes for the cathodes,separators,and anodes in LSBs.Finally,we address challenges and offer perspectives on future directions for research.We hope this review will help researchers gain insight into multifunctional MXenes and their comprehensive applications in LSBs. | Teng Zhang Long Zhang Yanglong Hou | 2022 | eScience2022，2，2： | 5 |
| 11 | Designing safer lithium-based batteries with nonflammable electrolytes:A review显示文摘Lithium-based batteries have had a profound impact on modern society through their extensive use in portable electronic devices,electric vehicles,and energy storage systems.However,battery safety issues such as thermal runaway,fire,and explosion hinder their practical application,especially for using metal anode.These problems are closely related to the high flammability of conventional electrolytes and have prompted the study of flameretardant and nonflammable electrolytes.Here,we review the recent research on nonflammable electrolytes used in lithium-based batteries,including phosphates,fluorides,fluorinated phosphazenes,ionic liquids,deep eutectic solvents,aqueous electrolytes,and solid-state electrolytes.Their flame-retardant mechanisms and efficiency are discussed,as well as their influence on cell electrochemical performance.We conclude with a summary of future prospects for the design of nonflammable electrolytes and the construction of safer lithium-based batteries. | Shichao Zhang Siyuan Li Yingying Lu | 2021 | eScience2021，1，2： | 5 |
| 12 | Emerging design principles,materials,and applications for moisture-enabled electric generation显示文摘Smart generators that collect energy from the ambient environment are a new approach for meeting growing global energy needs.Moisture is one of the most abundant resources in the ambient environment,and using it to generate electricity has aroused great interest in recent years.In this review,we first summarize the emerging design principles of moisture power generation,including ion diffusion,streaming potential,and charged surface potential.Then,based on these fundamental principles,we systematically summarize the materials thus far known to be suitable for moisture power generation.Finally,we highlight the application of moisture energy generators in various fields,such as thermoelectricity,solar thermal evaporation,capacitors,strain sensors,and information storage,and discuss current challenges and future prospects for the development of moisture energy generators. | Zhaoyang Sun Xian Wen Liming Wang Dongxiao Ji Xiaohong Qin Jianyong Yu Seeram Ramakrishna | 2022 | eScience2022，2，1： | 4 |
| 13 | Controlling Li deposition below the interface显示文摘The desire for high-energy-density batteries calls for the revival of the Li metal anode.However,its application is hindered by enormous challenges associated with Li deposition/desolvation behaviors,such as side reactions,volume change,and dendrite formation.To overcome these challenges,Li deposition must be controlled to remain below the separator.Further,to enable longer cycle life,Li deposition should be constrained below the solid electrolyte interphase(SEI).To achieve these goals,it is critical to have a deep theoretical understanding and corresponding strategies.This paper examines Li plating/stripping in terms of behaviors,mechanisms,and influencing factors,and it proposes general strategies to control Li deposition.Comprehensive design strategies for the electrode,electrolyte,and their interface are essential.Three dimensional(3D)anodes are recommended to store most of the Li deposited below the surface of the anode.Artificial interface engineering can reduce the risk of Li deposition outside of the 3D anode,while electrolyte engineering favors Li transport,regulates Li deposition,and suppresses dendrites,serving as the final barrier to uncontrolled Li deposition.This paper reviews systemic theories and solutions to control Li deposition below the interface,paving the way for a promising route to build safer lithium metal batteries. | Wenzhuo Cao Quan Li Xiqian Yu Hong Li | 2022 | eScience2022，2，1： | 4 |
| 14 | Large-scale synthesis of N-doped carbon capsules supporting atomically dispersed iron for efficient oxygen reduction reaction electrocatalysis显示文摘The large-scale synthesis of platinum-free electrocatalysts for the oxygen reduction reaction(ORR)remains a grand challenge.We report the large-scale production of stable and active ORR electrocatalysts based on iron,an earth-abundant element.A core–shell zeolitic imidazolate framework–tannic acid coordination polymer composite(ZIF-8@K-TA)was utilized as the catalyst precursor,which was transformed into iron atoms dispersed in hollow porous nitrogen-doped carbon capsules(H-Fe-N_(x)-C)through ion exchange and pyrolysis.H-Fe-N_(x)-C fea-tures site-isolated single-atom iron centers coordinated to nitrogen in graphitic layers,high levels of nitrogen doping,and high permeability to incoming gases.Benefiting from these characteristics,H-Fe-N_(x)-C demonstrated efficient electrocatalytic activity(E_(1/2)=0.92 V,vs.RHE)and stability towards the ORR in both alkaline and acidic media.In ORR performance,it surpassed the majority of recently reported Fe-N-C catalysts and the standard Pt/C catalyst.In addition,H-Fe-N_(x)-C showed outstanding tolerance to methanol. | Hui Yang Yanfang Liu Xiaolu Liu Xiangke Wang He Tian Geoffrey I.N.Waterhouse Paul E.Krugere Shane GTelfer Shengqian Ma | 2022 | eScience2022，2，2： | 4 |
| 15 | Effect of electrolyte anions on the cycle life of a polymer electrode in aqueous batteries显示文摘Redox polymers are a class of high-capacity, low-cost electrode materials for electrochemical energy storage, butthe mechanisms governing their cycling stability are not well understood. Here we investigate the effect of anionson the longevity of a p-dopable polymer through comparing two aqueous zinc-based electrolytes. Galvanostaticcycling studies reveal the polymer has better capacity retention in the presence of triflate anions than that withsulfate anions. Based on electrode microstructural analysis and evolution profiles of the cell stacking pressure, theorigin of capacity decay is ascribed to mechanical fractures induced by volume change of the polymer activematerials during repeated cycling. The volume change of the polymer with the triflate anion is 61% less than thatwith the sulfate anion, resulting in fewer cracks in the electrodes. The difference is related to the different anionsolvation structures—the triflate anion has fewer solvated water molecules compared with the sulfate anion,leading to smaller volume expansion. This work highlights that anions with low solvation degree are preferablefor long-term cycling. | Ye Zhang Lihong Zhao Yanliang Liang Xiaojun Wang Yan Yao | 2022 | eScience2022，2，1： | 4 |
| 16 | Sputtered MoN nanolayer as a multifunctional polysulfide catalyst for high-performance lithium–sulfur batteries显示文摘Two major obstacles for the practical application of lithium–sulfur batteries are sluggish redox kinetics and the shuttle effect of lithium polysulfides(LiPSs).Herein,MoN nanolayer-decorated multilayer graphene is fabricated via magnetron sputtering then serves as a multifunctional interlayer in Li–S batteries to suppress the shuttle effect and enhance redox kinetics.It is revealed that after the initial discharge process,the MoN layers break up into independent microreaction units consisting of MoN bodies and MoS_(2) edges,forming a heterogeneous composite catalyst in situ.The MoN bodies not only have high sulfur affinity to trap LiPSs but also enhance their redox kinetics.At the same time,the MoS_(2) edge weakens the mobility of LiPSs via the anchoring effect.As a result,Li–S cells using the interlayer present superior cycling stability under a high sulfur loading of 4.8 mg cm^(-2).This work may open a new avenue for developing high-performance Li–S batteries. | Xin-Yang Yue Jing Zhang Jian Bao Yi-Fan Bai Xun-Lu Li Si-Yu Yang Zheng-Wen Fu Zhen-Hua Wang Yong-Ning Zhou | 2022 | eScience2022，2，3： | 4 |
| 17 | Toward dendrite-free and anti-corrosion Zn anodes by regulating a bismuth-based energizer显示文摘Aqueous rechargeable zinc metal batteries display high theoretical capacity along with economical effectiveness,environmental benignity and high safety.However,dendritic growth and chemical corrosion at the Zn anodes limit their widespread applications.Here,we construct a Zn/Bi electrode via in-situ growth of a Bi-based energizer upon Zn metal surface using a replacement reaction.Experimental and theoretical calculations reveal that the Bi-based energizer composed of metallic Bi and ZnBi alloy contributes to Zn plating/stripping due to strong adsorption energy and fast ion transport rates.The resultant Zn/Bi electrode not only circumvents Zn dendrite growth but also improves Zn anode anti-corrosion performance.Specifically,the corrosion current of the Zn/Bi electrode is reduced by 90%compared to bare Zn.Impressively,an ultra-low overpotential of 12mV and stable cycling for 4000h are achieved in a Zn/Bi symmetric cell.A Zn–Cu/Bi asymmetric cell displays a cycle life of 1000 cycles,with an average Coulombic efficiency as high as 99.6%.In addition,an assembled Zn/Bi-activated carbon hybrid capacitor exhibits a stable life of more than 50,000 cycles,an energy density of 64Wh kg−1,and a power density of 7kWkg−1.The capacity retention rate of a Zn/Bi–MnO_(2)full cell is improved by over 150%compared to a Zn–MnO_(2)cell without the Bi-based energizer.Our findings open a new arena for the industrialization of Zn metal batteries for large-scale energy storage applications. | Mingming Wang Yahan Meng Ke Li Touqeer Ahmad Na Chen Yan Xu Jifei Sun Mingyan Chuai Xinhua Zheng Yuan Yuan Chunyue Shen Ziqi Zhang Wei Chen | 2022 | eScience2022，2，5： | 4 |
| 18 | Recent advances in micro-supercapacitors for AC line-filtering performance:From fundamental models to emerging applications显示文摘Recently,micro-supercapacitors(MSCs)have undergone major development as next-generation micro-electrochemical energy storage devices for self-powered,integrated,and wearable systems,thanks to their excellent performance capability.In particular,their rapid frequency response characteristics make them potential candidates to replace conventional capacitors and function as alternating current(AC)line filters to rectify pulse energy or as current ripple filters in the kHz range.However,few papers have been published about the associated fundamental device components,architectures,and correct characterization of MSCs applied in filter applications.In addition,it is a huge challenge to achieve a balance between capacitance and frequency response,not yet to be overcome.This review comprehensively summarizes recent advances in MSCs for AC line-filtering,from fundamental mechanisms to appropriate characterization and emerging applications.Special attention is given to progress in microfabrication strategies,electrode materials,and electrolytes for high-frequency MSCs.We also present perspectives and insights into the development of MSCs in different frequency ranges for AC line-filtering applications. | Xin Feng Xiaoyu Shi Jing Ning Dong Wang Jincheng Zhang Yue Hao Zhong-Shuai Wu | 2021 | eScience2021，1，2： | 4 |
| 19 | Solid-state lithium batteries: Safety and prospects显示文摘Solid-state lithium batteries are flourishing due to their excellent potential energy density.Substantial efforts have been made to improve their electrochemical performance by increasing the conductivity of solid-state electrolytes(SEs)and designing a compatible battery configuration.The safety of a solid lithium battery has generally been taken for granted due to the nonflammability and strength of SEs.However,recent results have shown the release of dangerous gases and intense heat due to the formation of lithium dendrites,indicating the safety of solid-state lithium batteries may have been overestimated.In this review,we introduce a safety evaluation methodology,then focus on the garnet Li_(7)La_(3)Zr_(2)O_(12)(LLZO)and sulfide-based SEs,summarizing their structure,conductivity,compatibility with a lithium metal anode,electrochemical/chemical stability,and mechanical/thermal stability,which correlate closely with battery safety.We also evaluate the safety of all-solid-state lithium batteries,then conclude by discussing future avenues for improving the safety of SE-based batteries. | Yong Guo Shichao Wu Yan-Bing He Feiyu Kang Liquan Chen Hong Li Quan-Hong Yang | 2022 | eScience2022，2，2： | 4 |
| 20 | Electroactive polymeric nanofibrous composite to drive in situ construction of lithiophilic SEI for stable lithium metal anodes显示文摘Uncontrolled lithium dendrite growth hinders the practical application of lithium metal batteries(LMBs).Herein,we report a novel Li^(+) flux distributor achieved by placing an electroactive polyvinylidene fluoride/polymethyl methacrylate(PVDF/PMMA)composite nanofiber interlayer on a current collector,inducing uniform lithium deposition to mitigate the dendrite problem.Specifically,the released PMMA reacts with Liþto form abundant C–O–Li bonds and generate in situ a stable lithiophilic PMMA-Li solid electrolyte interphase layer.Theoretical calculations reveal that polar C–F groups in the PVDF framework and lithiophilic PMMA-Li provide homo-dispersed Li^(+) migration pathways with low energy barriers.Consequently,uniform Li nucleation is achieved at the molecular level,resulting in ultrahigh cycling stability with dendrite-free Li deposition at 5 mA cm^(-2) and 5 mAh cm^(-2)for over 500 h.The PVDF/PMMA||Li||LiFePO_(4)(LFP)full cell presents an increased rate capacity of 110 mAh g^(-1) at 10 C.In addition,a soft-package battery demonstrates a high energy density of 289 Wh kg^(-1).This work provides a facile design for stable lithium metal anodes to promote the practical use of LMBs and other alkali metal batteries. | Ai-Long Chen Nan Shang Yue Ouyang Lulu Mo Chunyang Zhou Weng Weei Tjiu Feili Lai Yue-E Miao Tianxi Liu | 2022 | eScience2022，2，2： | 3 |
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