Secondary Battery
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United States of America Patent
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Issued Date -
Nov 23, 2023
app pub date -
Dec 28, 2021
filing date -
Dec 28, 2020
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Abstract
Disclosed is a secondary battery including a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode includes a positive electrode current collector, and a positive electrode active material layer disposed on the positive electrode current collector, the positive electrode active material layer including a positive electrode active material and a binder. The negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector, the negative electrode active material layer including a negative electrode active material and a binder. The negative electrode active material includes a first negative electrode active material that is an artificial graphite having no carbon coating layer on the surface thereof and a second negative electrode active material that is an artificial graphite having a carbon coating layer on the surface thereof.
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