Battery cell with impurity removal function and battery pack

The invention provides a battery cell with an impurity removal function and a battery pack, and relates to the field of battery structures. The battery cell with the impurity removal function comprises a pole group which is wound to form a quasi-cylindrical structure; the current collecting part is connected to the first end of the pole group in the axis direction; the impurity removal part is connected with the pole group; an impurity removal channel used for discharging impurities is formed in the impurity removal part, the inlet end of the impurity removal channel is located between the pole group and the current collecting part, and the outlet end of the impurity removal channel is communicated with the external space of the pole group. 本发明提供了一种具有除杂功能的电芯及电池包，涉及电池结构领域。所述具有除杂功能的电芯包括：极组，卷绕形成为类圆柱状结构；集流部，连接于所述极组的轴线方向的第一端；以及除杂件，与所述极组连接；所述除杂件形成有用于排出杂质的除杂通道，所述除杂通道的入口端位于所述极组和所述集流部之间，所述除杂通道的出口端与所述极组的外部空间连通。