Aqueous Na-ion batteries have been extensively studied for large-scale energy storage systems.However,their wide application is still limited by their inferior cycle stability (＜3000 cycles) and poor temperature tolerance.Furthermore,many of the reported high rate behaviors are achieved at a low mass loading (＜3 mg cm-2) of the electrodes.Herein,we propose an aqueous Na-ion battery which includes a Ni-based Prussian blue (NiHCF) cathode,a carbonyl-based organic compound,5,7,12,14-pentacenetetrone (PT)anode and a "water-in-salt" electrolyte (17 mol kg-1 NaClO4 in water).Its operation involves the rever-sible coordination reaction of the PT anode and the extraction/insertion of Na+ in the NiHCF cathode.It is demonstrated that the wide internal spaces of the PT anode and NiHCF cathode can not only buffer the volumetric change induced by Na+ storage,but also enable fast kinetics.The full cell exhibits a supercapacitor-like rate performance of 50 A g-1 (corresponding to a discharge or charge within 6.3 s)and a super-long lifespan of 15,000 cycles.Moreover,the excellent rate performance can still be pre-served even with a high mass loading of the electrodes (15 mgNiHCF cm-2 and 8 mgPT cm-2).Especially,the cell can work well in a wide temperature range,from-40 to 100 ℃,showing a typical all-climate operation.

Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,Institute of New Energy,iChEM (Collaborative Innovation Center of Chemistry for Energy Materials),Fudan University,Shanghai 200433,China;College of Pharmacy,Henan University of Chinese Medicine,Zhengzhou 450046,China

[1]Yu Zhang;Jie Xu;Zhi Li;Yanrong Wang;Sijia Wang;Xiaoli Dong;Yonggang Wang-.All-climate aqueous Na-ion batteries using "water-in-salt" electrolyte)[J].科学通报（英文版）,2022(02):161-170

NiHCF,pentacenetetrone,mgNiHCF,mgPT

All,climate,aqueous,batteries,using,water,salt,electrolyte,Aqueous,have,been,extensively,studied,large,scale,energy,storage,systems,However,their,wide,application,still,limited,by,inferior,stability,cycles,poor,temperature,tolerance,Furthermore,many,reported,high,behaviors,are,achieved,low,mass,loading,electrodes,Herein,propose,battery,which,includes,Prussian,blue,cathode,carbonyl,organic,compound,anode,NaClO4,Its,operation,involves,rever,sible,coordination,reaction,extraction,insertion,Na+,demonstrated,that,internal,spaces,can,not,only,buffer,volumetric,change,induced,but,also,enable,fast,kinetics,full,exhibits,supercapacitor,like,performance,corresponding,discharge,within,long,lifespan,Moreover,excellent,pre,served,even,Especially,work,well,range,from,showing,typical

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