Negative pole piece and preparation method thereof, secondary battery, battery module, battery pack and power utilization device

The negative pole piece comprises a negative current collector and a first negative active material layer, the first negative electrode active material layer is arranged on at least one surface of the negative electrode current collector; wherein the first negative electrode active material layer co...

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Bibliographic Details
Main Authors DONG XIAOBIN, LIU LIANGBIN, LYU ZIJIAN, WANG JIAZHENG, YAN QINGWEI
Format Patent
LanguageChinese
English
Published 13.02.2024
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The negative pole piece comprises a negative current collector and a first negative active material layer, the first negative electrode active material layer is arranged on at least one surface of the negative electrode current collector; wherein the first negative electrode active material layer comprises the following components in percentage by mass: 30%-70% of a silicon-based material, 15%-40% of a binder and 15%-40% of a conductive agent. 提供了一种负极极片，包括：负极集流体及第一负极活性材料层；第一负极活性材料层设于负极集流体的至少一个表面上；其中，按照质量百分比计，第一负极活性材料层的组分包括：30％～70％的硅基材料、15％～40％的粘结剂及15％～40％的导电剂。
Bibliography:Application Number: CN202280044752