Enhancement of electrochemical and thermal stability of LiNiO2 modified with precursor coating - 文章详情页

作者：

Zhao, Yujuan (Zhao, Yujuan.) | Xia, Dingguo (Xia, Dingguo.) (学者：夏定国)

收录：

EI Scopus

摘要：

To　improve　the　electrochemical　performance　and　thermal　stability　of　LiNiO2,　composites　of　LiNi0.9Co0.05Al　0.05O2　and　LiNi0.9Al0.1O2　were　synthesized　with　coated　precursor.　The　substituting　elements　of　Co　and　Al　modified　the　surface　morphology　and　significantly　improved　thermal　stability　of　the　composites　by　retarding　the　decomposition　of　the　charged　LiNiO2.　In　comparison　with　LiNiO2,　both　of　LiNi0.9Co　0.05Al0.05O2　and　LiNi0.9Al　0.1O2　exhibited　excellent　cycling　reversibility　with　very　small　loss　of　discharge　capacity.　The　surface　modification　may　reduce　the　undesired　reactions　and　stabilize　the　composite　particles　to　improve　the　cycling　performance.

关键词：

Coatings Composite materials Decomposition Electrochemistry Lithium alloys Morphology Thermodynamic stability

作者机构：

[ 1 ] [Zhao, Yujuan]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100022, China
[ 2 ] [Xia, Dingguo]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100022, China

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