Improving the Li-ion conductivity and air stability of cubic Li7La3Zr2O12 by the co-doping of Nb, Y on the Zr site

doi:10.1016/j.jeurceramsoc.2017.12.002

QIBEBT-IR

	Improving the Li-ion conductivity and air stability of cubic Li7La3Zr2O12 by the co-doping of Nb, Y on the Zr site
	Gai, Jianli 1; Zhao, Erqing2 ; Ma, Furui 1; Sun, Deye 1; Ma, Xiaodi 1; Jin, Yongcheng 1; Wu, Qingliu 3; Cui, Yongjie 4
	2018-04-01
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
卷号	38 期号:4 页码:1673-1678
摘要	The elements Nb and Y were simultaneously substituted to the Zr sites of an Li7La3Zr2O12 (LLZO) electrolyte to improve its Li-ion conductivity and air stability. Samples of Li7La3Zr2-2xNbxYxO12 were fabricated using a solid-state reaction method. The results show that the introduction of Nb and Y can stabilise cubic-phase LLZO. The total conductivity of Li7La3ZrNb0.5Y0.5O12 electrolyte can reach 8.29 x 10(-4) S cm(-1) at 30 degrees C when sintered at 1230 degrees C for only 15 h. Surprisingly, the conductivity of Li7La3ZrNb0.5Y0.5O12 can be maintained at 6.91 x 10(-4) S cm(-1) after exposure to air for 1.5 months, indicating excellent air stability. Furthermore, a LiFePO4/Li7La3ZrNb0.5Y0.5O12/Li cell displayed stable charge/discharge and cycling performance at ambient temperature, suggesting there is potential to use Li7La3ZrNb0.5Y0.5O12 electrolyte in Li-ion batteries. Additionally, the effects of varying the co-doping amount and dwelling time on the Li-ion conductivity of Li7La3Zr2-2xNbxYxO12 were investigated.
文章类型	Article
关键词	Solid State Electrolyte Ionic Conductivity Li7la3zr2o12 Garnet Lithium Ion Battery
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.jeurceramsoc.2017.12.002
关键词[WOS]	SOLID-STATE ELECTROLYTES ; GARNET-TYPE LI7LA3ZR2O12 ; LITHIUM GARNET ; SUPERIONIC CONDUCTORS ; PHASE-STABILITY ; BATTERIES ; AL ; TA ; MICROSTRUCTURE ; SUBSTITUTION
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
项目资助者	"100 Talents" programs of Chinese Academy of Sciences(Y51002110W)
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000424716700084
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/10622
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Jin, Yongcheng; Wu, Qingliu; Cui, Yongjie
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China 2.Henan Inst Sci & Technol, Sch Chem & Chem Engn, Eastern Hualan Ave, Xinxiang 453003, Peoples R China 3.Western Michigan Univ, Dept Chem & Paper Engn, 1903 W Michigan Ave, Kalamazoo, MI 49008 USA 4.Northwest A&F Univ, Coll Mech & Elect Engn, 22 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gai, Jianli,Zhao, Erqing,Ma, Furui,et al. Improving the Li-ion conductivity and air stability of cubic Li7La3Zr2O12 by the co-doping of Nb, Y on the Zr site[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(4):1673-1678.
APA	Gai, Jianli.,Zhao, Erqing.,Ma, Furui.,Sun, Deye.,Ma, Xiaodi.,...&Cui, Yongjie.(2018).Improving the Li-ion conductivity and air stability of cubic Li7La3Zr2O12 by the co-doping of Nb, Y on the Zr site.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(4),1673-1678.
MLA	Gai, Jianli,et al."Improving the Li-ion conductivity and air stability of cubic Li7La3Zr2O12 by the co-doping of Nb, Y on the Zr site".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.4(2018):1673-1678.