NEGATIVE ELECTRODE AND SECONDARY BATTERY
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United States of America
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Issued Date -
Feb 13, 2025
app pub date -
Oct 31, 2024
filing date -
Oct 31, 2024
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Abstract
A negative electrode and a secondary battery capable of improving cycle characteristics are provided. The negative electrode includes a negative electrode current collector, a negative electrode active material layer, a first layer provided between the negative electrode current collector and the negative electrode active material layer, and a second layer provided on the negative electrode active material layer. The negative electrode current collector contains at least one or more of copper, nickel, and iron, the negative electrode active material layer contains silicon, the first layer contains silicon, a metal element constituting the negative electrode current collector, and at least one or more of titanium, nickel, zinc, silver, iron, boron, indium, and germanium, and the second layer contains silicon and at least one or more of titanium, nickel, zinc, silver, iron, boron, indium, and germanium.
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