Improving the stability of LiNi0.80Co0.15Al0.05O2 by AlPO4 nanocoating for lithium-ion batteries

CORC > 化学研究所 > 中国科学院化学研究所 > 分子纳米结构与纳米技术实验室

	Improving the stability of LiNi0.80Co0.15Al0.05O2 by AlPO4 nanocoating for lithium-ion batteries
	Qi, Ran 1,2; Shi, Ji-Lei 2,3; Zhang, Xu-Dong 2,3; Zeng, Xian-Xiang 2,3; Yin, Ya-Xia 2,3; Xu, Jian 2,3; Chen, Li 1; Fu, Wei-Gui 1; Guo, Yu-Guo 2,3; Wan, Li-Jun 2,3
刊名	SCIENCE CHINA-CHEMISTRY
	2017-09-01
卷号	60 期号:9 页码:1230-1235
关键词	Li-ion Batteries Cathode Materials Surface Modification Alpo4 Coating
英文摘要	Nickel-rich layered materials, such as LiNi0.80Co0.15Al0.05O2 (NCA), have been considered as one alternative cathode materials for lithium-ion batteries (LIBs) due to their high capacity and low cost. However, their poor cycle life and low thermal stability, caused by the electrode/electrolyte side reaction, prohibit their prosperity in practical application. Herein, AlPO4 has been homogeneously coated on the surface of NCA via wet chemical method towards the target of protecting NCA from the attack of electrolyte. Compared with the bare NCA, NCA@AlPO4 electrode delivers high capacity without sacrificing the discharge capacity and excellent cycling stability. After 150 cycles at 0.5 C between 3.0-4.3 V, the capacity retention of the coated material is 86.9%, much higher than that of bare NCA (66.8%). Furthermore, the thermal stability of cathode is much improved due to the protection of the uniform coating layer on the surface of NCA. These results suggest that AlPO4 coated NCA materials could act as one promising candidate for next-generation LIBs with high energy density in the near future.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39297]
专题	化学研究所_分子纳米结构与纳米技术实验室
作者单位	1.Tianjin Polytech Univ, Sch Mat Sci & Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300071, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qi, Ran,Shi, Ji-Lei,Zhang, Xu-Dong,et al. Improving the stability of LiNi0.80Co0.15Al0.05O2 by AlPO4 nanocoating for lithium-ion batteries[J]. SCIENCE CHINA-CHEMISTRY,2017,60(9):1230-1235.
APA	Qi, Ran.,Shi, Ji-Lei.,Zhang, Xu-Dong.,Zeng, Xian-Xiang.,Yin, Ya-Xia.,...&Wan, Li-Jun.(2017).Improving the stability of LiNi0.80Co0.15Al0.05O2 by AlPO4 nanocoating for lithium-ion batteries.SCIENCE CHINA-CHEMISTRY,60(9),1230-1235.
MLA	Qi, Ran,et al."Improving the stability of LiNi0.80Co0.15Al0.05O2 by AlPO4 nanocoating for lithium-ion batteries".SCIENCE CHINA-CHEMISTRY 60.9(2017):1230-1235.