BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS
A battery cell includes a housing, an electrode assembly, and an electrode lead-out portion. The housing is provided with a sealed area at an edge. The electrode assembly is accommodated in the housing, and the electrode assembly includes a main body portion and a tab connected to the main body portion. At least a portion of the electrode lead-out portion is electrically connected to the tab to form a connection portion, and at least a portion of the connection portion is located in the sealed area.
1 . A battery cell, comprising:
a housing, wherein the housing is provided with a sealed area at an edge;
an electrode assembly accommodated in the housing, wherein the electrode assembly comprises a main body portion and a tab connected to the main body portion; and
an electrode lead-out portion, wherein at least a portion of the electrode lead-out portion is electrically connected to the tab to form a connection portion, and at least a portion of the connection portion is located in the sealed area.
2 . The battery cell according to claim 1 , further comprising:
an adhesion member, wherein the adhesion member is configured to adhere the connection portion to the sealed area.
3 . The battery cell according to claim 2 , wherein the adhesion member fully covers a surface of the connection portion.
4 . The battery cell according to claim 2 , wherein:
a dimension of the adhesion member along a first direction exceeds a dimension of the electrode lead-out portion along the first direction, the first direction being an extension direction of the sealed area; and/or
the dimension of the adhesion member along the first direction exceeds a dimension of the tab along the first direction.
5 . The battery cell according to claim 2 , wherein a portion of the adhesion member is arranged on an outer side of the housing along a second direction, the second direction being a direction from the main body portion to the tab.
6 . The battery cell according to claim 1 , wherein the connection portion is entirely located in the sealed area.
7 . The battery cell according to claim 6 , wherein a dimension of the sealed area along a second direction is larger than a dimension of the connection portion along the second direction, the second direction being a direction from the main body portion to the tab.
8 . The battery cell according to claim 1 , wherein:
the edge has a first surface at an end back away from the main body portion, and the sealed area comprises an end portion back away from the main body portion along a second direction, wherein a distance between the first surface and the end portion is 1 mm to 2 mm, and the second direction is a direction from the main body portion to the tab.
9 . A battery, comprising the battery cell according to claim 1 .
10 . An electric apparatus, comprising the battery according to claim 9 , wherein the battery is configured to supply electrical energy.