Preparation method of dry-method electrode pole piece, electrode pole piece and battery cell
An electrode pole piece and dry method technology, which is applied in the field of battery preparation, can solve the problems of self-supporting membrane hole edges, uneven feeding, and excessive material volume, and achieve the goal of improving the poor uniformity of the membrane and improving the quality and performance. Effect
Active Publication Date: 2021-12-31
SVOLT ENERGY TECHNOLOGY CO LTD
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The invention provides a preparation method of a dry-method electrode pole piece, an electrode pole piece and a battery cell. The preparation method of the dry-method electrode pole piece comprises the following steps of preparing a fibrillated mixed material from raw material powder, stirring and sieving the mixed material to obtain pole piece powder, and processing the pole piece powder to obtain the electrode pole piece. According to the preparation method of the dry-method electrode pole piece, the material fibration degree before feeding can be regulated and controlled by stirring and sieving the mixed material, so that the thickness of a rolled film is regulated and controlled, and the problems of poor uniformity and poor neatness of the film are solved, so that the electrode pole piece prepared by the method is used for preparing a battery cell, and the quality and the performance of the battery cell are favorably improved.
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Property | Measurement | Unit |
Mesh | 1.0 ~ 100.0 | mesh |
Thickness | 1.0 ~ 3.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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