Lithium secondary battery positive electrode and lithium secondary battery
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United States of America Patent
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Jun 23, 2015
Grant Date -
Oct 27, 2011
app pub date -
Mar 9, 2011
filing date -
Apr 22, 2010
priority date (Note) -
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Abstract
A lithium secondary battery positive electrode according to the present invention is a lithium secondary battery positive electrode including a positive electrode material mixture layer containing a positive electrode active material and a conductivity enhancing agent on one or both sides of a current collector, wherein the positive electrode active material contains a lithium-containing composite oxide, the conductivity enhancing agent contains carbon fibers having an average fiber length of 10 nm or more and less than 1000 nm and an average fiber diameter of 1 nm or more and 100 nm or less, and the content of the carbon fibers in the positive electrode material mixture layer is 0.25 mass % or more and 1.5 mass % or less.
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