Li2NaV2(PO4)3: a Novel Composite Cathode Material with high ratio of Rhombohedral Phase

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 宁波所知识产出

	Li2NaV2(PO4)3: a Novel Composite Cathode Material with high ratio of Rhombohedral Phase
	王德宇，Guobao Li ; Yuanhao Tang a, Chenyun Wang a, Jingjing Zhou a, Yujing Bi a, Yang Liu a, Deyu Wang a,, Siqi Shi b, Guobao Li c,
刊名	Journal of Power Sources
	2013-04-01
卷号	2 期号:1 页码:199—203
通讯作者	王德宇，Guobao Li
合作状况	李雨桐
中文摘要	A novel composite material Li2NaV2(PO4)3/C is developed by utilizing our latest finding to form less stable rhombohedral Li3V2(PO4)3 directly with partial substitution of Lit to Nat ions. In the prepared sample, rhombohedral Li3V2(PO4)3 becomes the dominant phase with a proportion of w59%, coexistent with monoclinic Li3V2(PO4)3 (10%) and rhombohedral Na3V2(PO4)3 (31%). High-resolution transmission electron microscopy (HRTEM) reveals that different phases coexist in the same primary particles. This characteristic is different from other cathodes, in which the primary particles are single- or poly-crystals. The prepared composite delivers a discharge capacity of 119.1 mAh g 1, of which 93.6% is centralized around 3.7 V vs. Li/Lit, in good agreement with phase’s ratio calculated from refinement. The plateaus of monoclinic Li3V2(PO4)3, appeared at 3.6 and 4.1 V vs. Li/Lit, play an additional role of indicator to warn the end of charge and discharge. This kind of electrode materials are particular suitable to build large batteries to power electric vehicles and shape the grid.
学科主题	材料物理与化学
原文出处	EI收录
公开日期	2013-12-16
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/9873]
专题	宁波材料技术与工程研究所_宁波所知识产出
推荐引用方式 GB/T 7714	王德宇，Guobao Li,Yuanhao Tang a, Chenyun Wang a, Jingjing Zhou a, Yujing Bi a, Yang Liu a, Deyu Wang a,, Siqi Shi b, Guobao Li c,. Li2NaV2(PO4)3: a Novel Composite Cathode Material with high ratio of Rhombohedral Phase[J]. Journal of Power Sources,2013,2(1):199—203.
APA	王德宇，Guobao Li,&Yuanhao Tang a, Chenyun Wang a, Jingjing Zhou a, Yujing Bi a, Yang Liu a, Deyu Wang a,, Siqi Shi b, Guobao Li c,.(2013).Li2NaV2(PO4)3: a Novel Composite Cathode Material with high ratio of Rhombohedral Phase.Journal of Power Sources,2(1),199—203.
MLA	王德宇，Guobao Li,et al."Li2NaV2(PO4)3: a Novel Composite Cathode Material with high ratio of Rhombohedral Phase".Journal of Power Sources 2.1(2013):199—203.