POSTIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY
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United States of America Patent
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Issued Date -
May 29, 2014
app pub date -
Jul 2, 2012
filing date -
Jul 4, 2011
priority date (Note) -
Abandoned
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Abstract
Provided is a cathode material for lithium ion secondary battery containing a composite material of a lithium silicate crystal and a carbon material. The composite material shows a peak in a wave number range from 1400 cm−1 to 1550 cm−1 in infrared absorption spectrum and shows no peak in a wave number range from 1000 cm−1 to 1150 cm−1 in Raman spectrum.
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