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Ion coordination to improve ionic conductivity in polymer electrolytes for high performance solid-state batteries

文献类型：期刊论文

作者Liu, Qingyun1; Yu, Tong1; Yang, Huicong1,2; Xu, Shengjun1,2; Li, Hucheng1,2; Chen, Ke3; Xu, Ruogu1,2; Zhou, Tianya1,2; Sun, Zhenhua1,2; Li, Feng1,2
刊名NANO ENERGY
出版日期2022-12-01
卷号103页码:10
ISSN号2211-2855
关键词Anion adsorption Li+ coordination modification Ionic conductivity Oxide ceramic additives Polymer electrolyte
DOI10.1016/j.nanoen.2022.107763
通讯作者Sun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要Polymer electrolytes with high ionic conductivity and good mechanical stability, which can be achieved by the incorporation of oxide ceramics into polymer electrolytes, are critical for solid-state batteries. However, it is challenging to obtain selectivity and efficiency of lithium-ion (Li+) transport enhancements in polymer electrolytes by oxide ceramic additives because the free volume increase in the polymer matrix by oxide ceramic-polymer interactions facilitates simultaneous Li+ and anion transport. Herein, cerium-zirconium oxide (ZrxCe(1-x)O2) nanoparticles are demonstrated to be an effective additive for ion coordination modification to selectively improve Li+ transport in poly (ethylene oxide) (PEO) electrolytes. By anion adsorption using ZrxCe(1-x)O2 nanoparticles, the ionic interaction between Li+ and bis(trifluoromethanesulfon)imide (TFSI-) is weakened, the proportion of PEO-TFSI- mixed coordination with Li+ is reduced, and Li+ coordination is modified. Therefore, after Li+ coordination modification, the PEO electrolyte with Zr0.5Ce0.5O2 nanoparticles achieves a high ionic conductivity of 7.3 x 10(-5) S cm(-1) and a high lithium transfer number of 0.42 at 30 degrees C. Our work suggests that ion coordination modification by oxide ceramics can selectively improve the solid diffusion kinetics of Li+. This research provides new insights into the mechanism of Li+ transport.
资助项目National Key R & D Program of China[2021YFC2800201] ; National Key R & D Program of China[2021YFB3800301] ; National Natural Science Foundation of China[52020105010] ; National Natural Science Foundation of China[51972313] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y201942] ; Liaoning Revitalization Talents Program[XLYC1908015] ; Liaoning Revitalization Talents Program[XLYC2007080]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000863093600001
资助机构National Key R & D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program
源URL[http://ir.imr.ac.cn/handle/321006/176052]  
专题金属研究所_中国科学院金属研究所
通讯作者Sun, Zhenhua; Li, Feng
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
3.Univ New South Wales, Sch Chem Engn, Sydney 2052, Australia
推荐引用方式
GB/T 7714		 Liu, Qingyun,Yu, Tong,Yang, Huicong,et al. Ion coordination to improve ionic conductivity in polymer electrolytes for high performance solid-state batteries[J]. NANO ENERGY,2022,103:10.
APA Liu, Qingyun.,Yu, Tong.,Yang, Huicong.,Xu, Shengjun.,Li, Hucheng.,...&Li, Feng.(2022).Ion coordination to improve ionic conductivity in polymer electrolytes for high performance solid-state batteries.NANO ENERGY,103,10.
MLA Liu, Qingyun,et al."Ion coordination to improve ionic conductivity in polymer electrolytes for high performance solid-state batteries".NANO ENERGY 103(2022):10.

入库方式： OAI收割

来源：金属研究所

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