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AssigneeZhuhai Cosmx Battery Co., Ltd.
InventorsWeiping Chen, Suli Li, Panlong Guo, Lin Chu, Junyi Li, Yanming Xu
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Disclosed are a negative electrode plate and a battery. A first negative active material layer is disposed at a bottom layer, and includes a first binder resistant to electrolyte swelling, has a better chemical corrosion resistance, and is not easy to age, so as to ensure long-term bonding, and reduce battery cell expansio. The negative electrode plate can maintain good mechanical strength and elongation at immersion of the electrolyte, so as to ensure that it is not separatedr. A second binder in a second negative active material layer away from the negative current collector uses a high swelling material, the high-swelling binder is in good affinity with the electrolyte, and the electrolyte infiltration speed is good, which facilitates lithium ion conduction. Furthermore, the high-swelling binder is bound to the separator well in a hot pressing process, so as to improve an interface bonding effect.
A negative electrode plate, wherein the negative electrode plate comprises a negative current collector, a first negative active material layer applied to at least one side of a surface of the negative current collector, and a second negative active material layer;
Dependencies are inferred from the claim text.