Negative electrode plate and preparation method therefor, secondary battery, battery module, battery pack and power consuming device
AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsXihui Wang, Wenzhu Xu, Xiaoming Ge
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Abstract
A negative electrode plate may comprise a negative electrode current collector and a negative electrode film layer provided on at least one surface of the negative electrode current collector; the negative electrode film layer may comprise a first region and a second region along the width direction, the first region may not comprise a solid electrolyte, while the second region may comprise a solid electrolyte.
Claims20
A negative electrode plate, comprising a negative electrode current collector and a negative electrode film layer provided on at least one surface of the negative electrode current collector;
- wherein the negative electrode film layer comprises a first region and a second region along a width direction of the negative electrode film layer, the first region does not comprise a solid electrolyte, and the second region comprises a solid electrolyte, wherein both the first region and the second region comprise a negative electrode active material.
A method for preparing a negative electrode plate, comprising the steps of:
- dividing at least one surface of the negative electrode current collector into a first section and a second section along a width direction of the negative electrode current collector;
- providing a first negative electrode slurry and a second negative electrode slurry, wherein the first negative electrode slurry does not comprise a solid electrolyte, and the second negative electrode slurry comprises a solid electrolyte;
- and
- coating the first section with the first negative electrode slurry, and coating the second section with the second negative electrode slurry,
- wherein both the first region and the second region comprise a negative electrode active material.
Dependencies are inferred from the claim text.