BATTERY, MANUFACTURING METHOD AND MANUFACTURING APPARATUS THEREOF, AND ELECTRIC APPARATUS
A battery includes battery units arranged side by side along a first direction, each including at least two battery cells arranged along a second direction perpendicular to the first direction. The battery cell includes a body portion, a gap is formed between the body portions of at least two adjacent battery cells in the battery unit. At least one of the adjacent battery cells includes an electrode terminal protruding from the body portion and located in the gap and configured to be electrically connected to the other battery cell. The battery further includes a sampling member at least partially located in the gap and including a sampling portion and a lead-out portion. The sampling portion is electrically connected to the electrode terminal and is configured to collect an electrical signal of the battery cell.
1 . A battery, comprising:
a plurality of battery units arranged side by side along a first direction, wherein each battery unit comprises at least two battery cells arranged along a second direction, the battery cell comprises a body portion, a gap is formed between the body portions of at least one pair of adjacent battery cells in the battery unit, at least one battery cell in the adjacent battery cells comprises an electrode terminal protruding from the body portion, and the electrode terminal is located in the gap and configured to be electrically connected to the other battery cell, wherein the second direction is perpendicular to the first direction; and
a sampling member at least partially located in the gap, wherein:
the sampling member comprises a sampling portion and a lead-out portion; the sampling portion is electrically connected to the electrode terminal and is configured to collect an electrical signal of the battery cell; and
a first end of the lead-out portion is electrically connected to the sampling portion, a second end of the lead-out portion is led out from between the adjacent battery units along the first direction, and the lead-out portion is configured to output the collected electrical signal.
2 . The battery according to claim 1 , wherein the lead-out portion does not extend beyond an outer side surface of the battery cell in a third direction, wherein the third direction is perpendicular to the first direction and the second direction.
3 . The battery according to claim 1 , wherein in the second direction, the second end of the lead-out portion extends along a direction leaving the electrode terminal.
4 . The battery according to claim 1 , wherein in the second direction, the second end of the lead-out portion extends beyond the gap.
5 . The battery according to claim 1 , wherein the first end of the lead-out portion is close to a side end of the sampling portion in the second direction, and in the second direction, the second end of the lead-out portion extends along a direction leaving the sampling portion.
6 . The battery according to claim 1 , wherein the first end of the lead-out portion is connected to a position of the sampling portion in a center of the battery cell along the first direction, and the second end of the lead-out portion extends to a position between the adjacent battery units along the first direction.
7 . The battery according to claim 1 , wherein the sampling member comprises a plurality of sampling portions spaced apart along the first direction, and the adjacent sampling portions are connected to each other.
8 . The battery according to claim 7 , wherein the plurality of sampling portions share one lead-out portion.
9 . The battery according to claim 7 , wherein the sampling member further comprises a connecting portion, the connecting portion is connected between the adjacent sampling portions, the first end of the lead-out portion is connected at a position of the connecting portion between the adjacent battery units, and the second end of the lead-out portion extends along the third direction, the third direction being perpendicular to the first direction and the second direction.
10 . The battery according to claim 9 , wherein:
two ends of the connecting portion are respectively connected to positions of the adjacent sampling portions close to the lead-out portion in the third direction; or
the sampling portion is of a partially annular structure, and two ends of the connecting portion are connected to the respective adjacent end portions of the adjacent sampling portions.
11 . The battery according to claim 9 , wherein the connecting portion is provided with a deformable section configured to allow dislocation between the adjacent sampling portions.
12 . The battery according to claim 1 , further comprising:
a mounting part mounted on the battery cell and connected to the sampling member, wherein an accommodating groove is provided on the mounting part and is configured to accommodate the second end of the lead-out portion, and the accommodating groove is provided on a surface of the mounting part far away from the battery unit in the third direction, and is located at a position between the adjacent battery units in the first direction, wherein the third direction is perpendicular to the first direction and the second direction.
13 . The battery according to claim 12 , wherein the mounting part is provided with an opening, the opening is disposed opposite the electrode terminal in the first direction, and the opening is configured to form a channel for connecting the sampling portion and the electrode terminal.
14 . The battery according to claim 12 , wherein the mounting part has a supporting portion configured to support the second end of the lead-out portion.
15 . The battery according to claim 1 , wherein the sampling portion is connected to a circumferential side wall of the electrode terminal.
16 . The battery according to claim 1 , wherein the respective electrode terminals of at least one pair of adjacent battery cells in the battery unit are interconnected in the second direction, and the sampling portion is electrically connected to the two electrode terminals.
17 . The battery according to claim 1 , wherein the sampling portion is of a partially annular structure, and the sampling portion is in interference fit with the electrode terminal.
18 . The battery according to claim 1 , wherein the sampling portion is of a partially annular structure and is laser-welded to the electrode terminal.
19 . The battery according to claim 1 , wherein a protruding portion is provided on an inner wall of the sampling portion, and the protruding portion is in contact with the circumferential side wall of the electrode terminal.
20 . The battery according to claim 1 , wherein the sampling portion comprises a first snap ring and a second snap ring, and the first snap ring and the second snap ring together surround the circumferential side wall of the electrode terminal.