NEGATIVE ELECTRODE AND SECONDARY BATTERY INCLUDING SAME
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United States of America Patent
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Nov 3, 2022
app pub date -
Sep 22, 2020
filing date -
Sep 22, 2020
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Abstract
A negative electrode and a secondary battery including the negative electrode, the negative electrode includes a negative electrode active material layer, the negative electrode active material layer includes a negative electrode active material, the negative electrode active material includes a carbon-based negative electrode active material particles. Each carbon-based negative electrode active material particle includes a core comprising a plurality of flake artificial graphite primary particles; natural graphite present on the core; and an amorphous carbon-based material, wherein the natural graphite is present in the carbon-based negative electrode active material particles in an amount of 10 wt % to 30 wt %, and the carbon-based negative electrode active material particles have a sphericity of 0.78 to 0.83.
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