典型文献
Enhanced electrode kinetics and properties via anionic regulation in polyanionic Na3+xV2(PO4)3-x(P2O7)x cathode material
文献摘要：
Mixing polyanion cathode materials are promising candidates for the development of next-generation batteries,owing to their structural robustness and low-volume changes,yet low conductivity of polyanion hinders their practical capacity.Herein,the anion-site regulation is proposed to elevate the electrode kinetics and properties of polyanionic cathode.Multivalent anion P2O74-is selected to substitute the PO43-in Na3V2(PO4)3(NVP)lattice and regulate the ratio of polyanion groups to prepare Na3+xV2(PO4)3-x(P2O7)x(NVPPx,0≤x≤0.15)materials.The optimal Na3.1V2(PO4)2.9(P2O7)0.1(NVPP0.1)material can deliver remarkably elevated specific capacity(104 mAh g-1 at 0.1 C,60 mAh g-1 at 20 C,respectively),which is higher than those of NVP.Moreover,NVPP0.1 exhibits outstanding cyclic stability(91％capacity retention after 300 cycles at 1 C).Experimental analyses reveal that the regulation of anions improves the structure stability,increases the active Na occupancy in the lattice and accelerates the Na+migration kinetics.The strategy of anion-site regulation provides the researchers a reference for the design of new high-performance poly anionic materials.
文献关键词：
中图分类号：
作者姓名：
Mei-Yi Wang;Xin-Xin Zhao;Jin-Zhi Guo;Xue-Jiao Nie;Zhen-Yi Gu;Xu Yang;Xing-Long Wu
作者机构：
National&Local United Engineering Laboratory for Power Batteries,Faculty of Chemistry,Northeast Normal University,Changchun,Jilin,130024,China;Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education,Northeast Normal University,Changchun,Jilin,130024,China
文献出处：
引用格式：
[1]Mei-Yi Wang;Xin-Xin Zhao;Jin-Zhi Guo;Xue-Jiao Nie;Zhen-Yi Gu;Xu Yang;Xing-Long Wu-.Enhanced electrode kinetics and properties via anionic regulation in polyanionic Na3+xV2(PO4)3-x(P2O7)x cathode material)[J].绿色能源与环境（英文）,2022(04):763-771
A类：
polyanionic,Na3+xV2,polyanion,P2O74,NVPPx,1V2,NVPP0,Na+migration
B类：
Enhanced,electrode,kinetics,properties,via,regulation,cathode,Mixing,materials,promising,candidates,development,next,generation,batteries,owing,their,structural,robustness,low,volume,changes,yet,conductivity,hinders,practical,capacity,Herein,site,proposed,Multivalent,selected,substitute,PO43,Na3V2,lattice,regulate,groups,prepare,optimal,deliver,remarkably,elevated,specific,mAh,respectively,which,higher,than,those,Moreover,exhibits,outstanding,cyclic,stability,retention,after,cycles,Experimental,analyses,reveal,that,anions,improves,structure,increases,active,occupancy,accelerates,strategy,provides,researchers,reference,design,new,performance
AB值：
0.446251
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
