Improved electrochemical performance of Ti1.4V0.6Ni hydrogen storage alloy in its composite with LiAlH4

被引：8

作者：

Lin, Jing ^{[1
,2
]}

Cao, Zhanyi ^{[1
]}

Sun, Lianshan ^{[2
]}

Liang, Fei ^{[2
]}

Wang, Limin ^{[2
]}

机构：

[1] Jilin Univ, Coll Mat Sci & Engn, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Jilin, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 724卷

基金：

中国国家自然科学基金;

关键词：

Composite materials; Electrode materials; Electrochemical reactions; METAL HYDRIDE ELECTRODES; QUASI-CRYSTAL ALLOY; NI; BATTERIES; PHASE; PRETREATMENT; BEHAVIOR; LANI5; LI;

D O I：

10.1016/j.jallcom.2017.06.248

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ti1.4V0.6Ni + xLiAlH(4) (x = 0.5, 1, 1.5, 2, 2.5, wt.%) composites were prepared by ball-milling, and the effects of LiAlH4 content on structure and electrochemical properties of the composites were investigated systematically. The addition of LiAlH4 to the Ti1.4V0.6Ni alloy significantly affected the morphology and size of the composite particles. The electrochemical cycling stability and rate dischargeability of the composite electrodes benefitted from adding some LiAlH4 (x = 1), which however deteriorated when the LiAlH4 content increased further. The positive effect of LiAlH4 on the electrochemical performance of the studied alloy was caused by suppression of the dissolution of active components of the Ti1.4V0.6Ni hydrogen storage alloy. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1 / 7

页数：7

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