BINDER AND LITHIUM-ION BATTERY INCLUDING SAME
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United States of America
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Issued Date -
Dec 12, 2024
app pub date -
Dec 28, 2023
filing date -
Dec 28, 2023
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Abstract
Disclosed are a binder and a lithium-ion battery including the binder. The binder includes at least one polymer, and the polymer has a structure shown in Formula 1. The binder utilizes a composite structure in which a main chain is polyethylene glycol and both ends of a polymer chain include catechol, which respectively provide the binder with high ionic conductivity and high adhesion. A negative electrode plate including the binder features relatively has high ionic conductivity and peel strength. In addition, the binder in the present disclosure is used in a lithium-ion battery, and the lithium-ion battery has a higher cycle capacity retention rate, a lower cycle expansion rate, and higher rate performance than a lithium-ion battery using a conventional polymer binder.
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