NEGATIVE ELECTRODE MATERIAL POWDER FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY USING THE SAME, AND LITHIUM ION SECONDARY BATTERY USING THE SAME
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United States of America Patent
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Issued Date -
Nov 7, 2013
app pub date -
Jan 4, 2012
filing date -
Jan 7, 2011
priority date (Note) -
Abandoned
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Abstract
Provided is a negative electrode material powder for a lithium ion secondary battery, including SiOx (0.4≦x≦1.2), in which 1H is inevitably included therein and a peak area of a chemical shift of 0.2-0.4 ppm is between 5% and 40% of an entire peak area in a spectrum 1H measured by means of nuclear magnetic resonance spectroscopy. A peak area of a chemical shift of 1.1-2.0 ppm is preferably between 5% and 95% of the entire peak area in a spectrum for 1H measured by means of nuclear magnetic resonance spectroscopy
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