Winding battery cell, cylindrical battery, and electric device
AssigneeBYD Company Limited
InventorsLyuhua YAO, Jianjun WANG, Lei LEI
Life of this patent
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AssigneeBYD Company Limited
InventorsLyuhua YAO, Jianjun WANG, Lei LEI
Estimating the term…
A winding battery cell, a cylindrical battery, and an electric device. The winding battery cell comprises an electrode sheet. The electrode sheet comprises an active material coating portion and a tab portion. The tab portion comprises a plurality of tabs arranged in the length direction of the electrode sheet. The tab portion of a winding starting section is a first tab portion. The first tab portion comprises a plurality of first tabs. The edge of the side of the first tabs facing a reel hole in a winding direction is a first side edge. The first side edge obliquely extends towards a winding tail end in the direction from the active material coating portion toward the tab portion. In the direction of the active material coating portion toward the tab portion, the height of each first tab extending out of the active material coating portion is a first height. In the winding direction, the heights of the plurality of first tabs increase.
A winding battery cell being formed by winding and having a reel hole defined on an inner side, the winding battery cell comprising:
Dependencies are inferred from the claim text.