Pole piece, battery and electronic device
The utility model provides a pole piece, battery and electronic device, wherein the pole piece comprises a substrate and a paste coating area formed on the substrate, one side of the substrate extends outwards to form a tab, the paste coating area comprises a body located on the substrate and a firs...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model provides a pole piece, battery and electronic device, wherein the pole piece comprises a substrate and a paste coating area formed on the substrate, one side of the substrate extends outwards to form a tab, the paste coating area comprises a body located on the substrate and a first paste coating area located on the tab, and the ratio of the thickness of the first paste coating area to the thickness of the body is 0.8-1; namely, the paste coating area is arranged on the tab, and the thickness of the paste coating area is slightly different from that of the body or even consistent with that of the body; in other words, the body of the pole piece provided by the utility model does not have a thinned area, so that the problem of lithium precipitation caused by the thinned area does not exist naturally; in addition, the tab comprises an empty foil area located on the side, away from the body, of the first pasting area, and the empty foil area is provided with a concave part. Therefore, when the |
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