Battery cell and battery with same

A battery cell comprises a battery cell body, a packaging bag and tabs, the battery cell body comprises a top surface, and the packaging bag covers the battery cell body and forms a top sealing edge on the top surface. The tab extends out of the top sealing edge. A diamond-like carbon film is arranged on the tab, so that the tab is isolated from the top sealing edge. The diamond-like carbon film can effectively isolate the tabs from the top sealing edge and can assist the tabs in heat dissipation at the same time, so that the heat dissipation performance of the battery cell is improved. The invention also provides a battery with the battery cell. 一种电芯，包括电芯本体、包装袋及极耳。所述电芯本体包括顶面。所述包装袋包覆所述电芯本体，并于所述顶面形成顶封边。所述极耳由所述顶封边内伸出。所述极耳上设置有类金刚石薄膜，以使所述极耳和所述顶封边隔离。所述类金刚石薄膜可将极耳和顶封边进行有效隔离的同时，还可辅助极耳散热，提高所述电芯的散热性能。本申请还提供了一种具有该电芯的电池。