Negative electrode of nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery
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United States of America Patent
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Aug 23, 2022
Grant Date -
Oct 10, 2019
app pub date -
Oct 17, 2017
filing date -
Nov 25, 2016
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Abstract
A negative electrode of a nonaqueous electrolyte secondary battery, which is provided with a collector and a negative electrode active material layer that is formed on the collector, and which is characterized in that: the negative electrode active material layer contains a carbon-based negative electrode active material, a silicon-based negative electrode active material, a conductive agent and a predetermined carboxy methylcellulose or a salt thereof; the content of the carboxy methylcellulose or a salt thereof is from 4% by mass to 15% by mass (inclusive) relative to the total mass of the negative electrode active material layer; and the content of the silicon-based negative electrode active material relative to the total content of the carbon-based negative electrode active material and the silicon-based negative electrode active material is from 3% by mass to 19% by mass (inclusive).
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