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High and ultra-stable energy storage from all-carbon sodium-ion capacitor with 3D framework carbon as cathode and carbon nanosheet as anode

查看全文 作　　者：Fangyuan [1]Hu;Siyang [1]Liu;Shengming [2]Li;Cheng [3]Liu;Guipeng [4]Yu;Ce [5]Song;Wenlong [3]Shao;Tianpeng [1]Zhang;Xigao [1,3,5]Jian 高影响力作者 机构地区：[1]School of Materials Science and Engineering,State Key Laboratory of Fine Chemicals,Liaoning Province Engineering Centre of High Performance Resins,Dalian University of Technology,Dalian 116024,Liaoning,China;[2]School of Innovation and Entrepreneurship,Dalian University of Technology,Dalian 116024,Liaoning,China;[3]State Key Laboratory of Fine Chemicals,Liaoning Province Engineering Research Centre of High Performance Resins,Dalian University of Technology,Dalian 116024,Liaoning,China;[4]School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,Hunan,China;[5]School of Mathematical Sciences,Dalian University of Technology,Dalian 116024,Liaoning,China高影响力机构 出　　处：《Journal of Energy Chemistry》索引2021年第30卷第4期,共9页高影响力期刊 基　　金：the support from the National Key Research and Development Program(No.2018YFB1107500);the National Natural Science Foundation of China(No.51503024);the Fundamental Research Funds for the Central Universities(No.DUT17RC(3)003);the National Natural Science Foundation of the Joint Fund Key Projects(No.U1663226);the Dalian Youth Science and Technology Star Project Support Program(No.2017RQ104);the Scientific Research Foundation for Doctor,Liaoning Province of China(No.20170520083)。 摘　　要：Sodium-ion capacitors(SICs)are extremely promising due to the combined merits of high energy-power characteristics and considerable price advantage.However,it is still difficult to achieve high energypower outputs and cycle stability in a typical configuration of the metal-based battery-type anode and activated carbon capacitor-type cathode due to the kinetic mismatching.In this work,a carbon nanosheet(PSCS-600)with large interlayer spacing of 0.41 nm derived from the bio-waste pine cone shell was prepared.Besides,the covalent triazine framework derived carbon(OPDN-CTF-A)was obtained through ionothermal synthesis strategy,exhibiting beneficial hierarchical pores(0.5-6 nm)and high heteroatoms(5.6 at%N,6.6 at%O).On this basis,the all-carbon SICs were fabricated by the integration of PSCS-600 anode and OPDN-CTF-A cathode.The device delivered high energy density 111 Wh kg^(-1),high power output of 14,200 W kg^(-1) and ultra-stable cycling life(~90.7%capacitance retention after 10,000 cycles).This work provides new ideas in fabricating carbon-carbon architectural SICs with high energy storage for practical application. 关 键 词：All-carbon capacitor Sodium-ion storage Cycle stability CARBON Electrode design
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