期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 6, 页码 1627-1630出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14377e
关键词
-
Metal oxides are one of the most promising classes of materials to replace graphite anodes in future high energy density, high power density applications for lithium-ion batteries (LIBs), including (hybrid) electric vehicles and grid-scale energy storage. Unlike graphite, which undergoes lithium ion intercalation, nearly all metal oxides (MOs) experience structural decomposition and phase separation during charge-discharge. In this work, ordered mesoporous nickel oxide (OMNiO) was synthesized and used as a representative MO to study the nanoscale structural changes that occur during charge-discharge via identical-location transmission electron microscopy (IL-TEM). We connect IL-TEM with coin cell electrochemical studies to explain the root cause for the rapid capacity fade that is common to MOs generally, and NiO specifically. We show that the electronic conductivity, in addition to MO structure, plays a crucial role in maintaining high capacity over repeated charge-discharge cycling.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据