Recently,Coordination Polymers(CPs)have been widely utilized as energy storage materials for reversible Lithium-Ion Batteries(LIBs)benefiting from their tunable building blocks and adjusted electrochemical properties.However,the unsatisfied electrochemical behavior of CPs with poor conductivity and sluggish ion transport kinetics is still a bottle-neck for their large-scale energy storage applications in LIBs.Herein,we display the rational fabrication of a conductive Sn-based coordination polymer(Sn-DHTPA)via judi-ciously choosing suitable building units.The Sn-DHTPA is employed as anode for LIBs,exhibiting superior reversible storage capacity of 1142.6 mA h g-1 at 0.1 A g-1 after 100 cycles and impressive rate storage capability of 287.7 mA h g-1 at 20 A g-1.More importantly,a robust cycling performance of 205.5 mA h g-1 at an extra-high current density of 20 A g-1 are observed without remarkable capacity-fading up to 1000 cycles.The behavior superiority of Sn-DHTPA is related to its advanced architecture with abundant lithium storage sites,high electrical conductivity and rapid lithium transport.A series of ex-situ charac-terizations reveal that the impressive lithium storage capacity is contributed by the redox active sites of both the aromatic linker and metal center related to in-situ generated metallic nanoparticles dispersed in the skeleton.

Xinlu Zhang;Lu Han;Junfeng Li;Ting Lu;Jinliang Li;Guang Zhu;Likun Pan

Shanghai Key Laboratory of Magnetic Resonance,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China;Siyuan Laboratory,Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials,Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials,Department of Physics,Jinan University,Guangzhou,Guangdong 510632,China;Key Laboratory of SpinElectron and Nanomaterials of Anhui Higher Education Institutes,Suzhou University,Suzhou 234000,China

材料科学技术（英文版）

[1]Xinlu Zhang;Lu Han;Junfeng Li;Ting Lu;Jinliang Li;Guang Zhu;Likun Pan-.A novel Sn-based coordination polymer with high-efficiency and ultrafast lithium storage)[J].材料科学技术（英文版）,2022(02):156-164

DHTPA,judi,ciously

novel,Sn,coordination,polymer,high,efficiency,ultrafast,lithium,storage,Recently,Coordination,Polymers,CPs,have,been,widely,utilized,energy,materials,reversible,Lithium,Ion,Batteries,LIBs,benefiting,from,their,tunable,building,blocks,adjusted,electrochemical,properties,However,unsatisfied,behavior,poor,conductivity,sluggish,transport,kinetics,still,bottle,neck,large,scale,applications,Herein,display,rational,fabrication,conductive,via,choosing,suitable,units,employed,anode,exhibiting,capacity,mA,after,cycles,impressive,capability,More,importantly,robust,cycling,performance,extra,current,density,are,observed,without,remarkable,fading,superiority,related,advanced,architecture,abundant,sites,electrical,rapid,series,situ,charac,terizations,reveal,that,contributed,by,redox,active,both,aromatic,linker,center,generated,metallic,nanoparticles,dispersed,skeleton

0.587576