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用于高性能锂电池正极的无模板合成Li[Ni0.25Li0.15Mn0.6]O2纳米线

Template-free synthesis of Li[Ni0.25Li0.15Mn0.6]O2 nanowires for high performance lithium battery cathode.

作者信息

Kim Min Gyu, Jo Minki, Hong Young-Sik, Cho Jaephil

机构信息

Beamline Research Division, Pohang Accelerator Laboratory, Pohang, 790-784, Korea.

出版信息

Chem Commun (Camb). 2009 Jan 8(2):218-20. doi: 10.1039/b815378g. Epub 2008 Nov 17.

DOI:10.1039/b815378g
PMID:19099074
Abstract

Li[Ni0.25Li0.15Mn0.6]O2 nanowires having an aspect ratio of several hundreds and with a diameter of about 30 nm were synthesized at a pH of 2 during a hydrothermal process at 200 degrees C for 5 h without using a template. The nanowires exhibited a first discharge capacity of 311 mA h g(-1) and a rate capability of 95% at 4C (=1200 mA g(-1)).

摘要

合成了长径比为数百且直径约为30nm的Li[Ni0.25Li0.15Mn0.6]O2纳米线，在200℃水热过程中于pH值为2的条件下反应5小时，未使用模板。这些纳米线首次放电容量为311 mA h g(-1)，在4C（=1200 mA g(-1)）时倍率性能为95%。

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