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AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsWenmeng Zhang, Shuhua Chen, Huihui Liu, Zhengbing Fan, Linhui Chen, Huanhuan Zuo
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A secondary battery, an electric apparatus, and a binder. The secondary battery includes a positive electrode plate, a negative electrode plate, and a separator. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector. The negative electrode film layer includes a negative electrode active material and a first binder. A mass percentage of the negative electrode active material in the negative electrode film layer is 96%-98.4%, and a mass percentage of the first binder in the negative electrode film layer is 0.5%-3%. The first binder includes a polymer, and the polymer includes —COOM, —CONH2, —CN, and —COOR, where M represents an alkali metal, and R represents substituted or unsubstituted C1-C20 alkyl.
A secondary battery, comprising a positive electrode plate, a negative electrode plate, and a separator, wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector;
A binder, comprising a polymer, wherein the polymer comprises —COOM, —CONH2, —CN, and —COOR, wherein M comprises an alkali metal, and R comprises substituted or unsubstituted C1-C20 alkyl.
Dependencies are inferred from the claim text.