ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICITY-CONSUMING DEVICE
The present application discloses an electrode assembly including: a first electrode sheet including an insulating substrate, an electricity-conducting layer arranged on a surface of the insulating substrate, and an active material layer coating on a surface of the electricity-conducting layer, in which the first electrode sheet is bent to form a multi-layer structure and includes a plurality of bending segments and a plurality of first layer-stacking segments arranged to be stacked, and each of the bending segments is configured to connect two adjacent first layer-stacking segments; a second electrode sheet, in which a polarity of the second electrode sheet is opposite to a polarity of the first electrode sheet, and the second electrode sheet includes a plurality of second layer-stacking segments, the plurality of second layer-stacking segments and the plurality of first layer-stacking segments are alternately arranged in a layer-stacking direction of the first layer-stacking segments.
1 . An electrode assembly for a battery, the electrode assembly comprising
a first electrode sheet, comprising an insulating substrate, an electricity-conducting layer arranged on a surface of the insulating substrate, and an active material layer coating on a surface of the electricity-conducting layer, wherein the first electrode sheet is bent to form a multi-layer structure and comprises a plurality of bending segments and a plurality of first layer-stacking segments arranged to be stacked, each of the bending segments is configured to connect two adjacent first layer-stacking segments, and each of the bending segments comprises a guiding portion for guiding the bending segment to be bent during production;
a second electrode sheet, wherein a polarity of the second electrode sheet is opposite to a polarity of the first electrode sheet, and the second electrode sheet comprises a plurality of second layer-stacking segments, the plurality of second layer-stacking segments and the plurality of first layer-stacking segments are alternately arranged in a layer-stacking direction of the first layer-stacking segments.
2 . The electrode assembly according to claim 1 , wherein the guiding portion is arranged in a first direction, and the first direction is perpendicular to a bending direction of the bending segments.
3 . The electrode assembly according to claim 1 , wherein each of the first layer-stacking segments comprises two first outer edges opposite to each other; after the bending segments is guided to be bent during production, the first outer edges of the two adjacent first layer-stacking segments connected to the bending segments are consistent.
4 . The electrode assembly according to claim 1 , wherein the guiding portion comprises at least one groove and/or at least one through hole.
5 . The electrode assembly according to claim 4 , wherein when the guiding portion comprises only one groove, in a first direction perpendicular to a bending direction of the bending segment, the groove is arranged continuously and penetrates the bending segment.
6 . The electrode assembly according to claim 4 , wherein when the guiding portion comprises a plurality of grooves and/or a plurality of through holes, the plurality of grooves and/or the plurality of through holes are arranged to be spaced from one another.
7 . The electrode assembly according to claim 4 , wherein the groove is arranged on a surface of the bending segment close to the second layer-stacking segments.
8 . The electrode assembly according to claim 4 , wherein the groove penetrates the electricity-conducting layer and exposes the insulating substrate.
9 . The electrode assembly according to claim 4 , wherein when the guiding portion comprises the through hole, the through hole penetrates the bending segment.
10 . The electrode assembly according to claim 1 , wherein only the insulating substrate is arranged on each of the bending segments.
11 . A battery cell, comprising the electrode assembly according to claim 1 .
12 . The battery cell according to claim 11 , wherein the guiding portion is arranged in a first direction, and the first direction is perpendicular to a bending direction of the bending segments.
13 . The battery cell according to claim 11 , wherein each of the first layer-stacking segments comprises two first outer edges opposite to each other; after the bending segments is guided to be bent during production, the first outer edges of the two adjacent first layer-stacking segments connected to the bending segments are consistent.
14 . The battery cell according to claim 11 , wherein the guiding portion comprises at least one groove and/or at least one through hole.
15 . The battery cell according to claim 14 , wherein when the guiding portion comprises only one groove, in a first direction perpendicular to a bending direction of the bending segment, the groove is arranged continuously and penetrates the bending segment.
16 . The battery cell according to claim 14 , wherein when the guiding portion comprises a plurality of grooves and/or a plurality of through holes, the plurality of grooves and/or the plurality of through holes are arranged to be spaced from one another.
17 . The battery cell according to claim 14 , wherein the groove is arranged on a surface of the bending segment close to the second layer-stacking segments.
18 . The battery cell according to claim 14 , wherein the groove penetrates the electricity-conducting layer and exposes the insulating substrate.
19 . A battery comprising the battery cell according to claim 11 .
20 . An electricity-consuming device comprising the battery according to claim 19 , wherein the battery is configured to supply electrical energy.