BATTERY, ELECTRIC DEVICE, AND MANUFACTURING METHOD AND MANUFACTURING DEVICE OF BATTERY
A battery includes a battery cell including an electrode terminal, a sampling terminal configured to collect a signal from the battery cell, and a busbar configured to electrically connect to the battery cell. The sampling terminal is disposed between the busbar and the electrode terminal and is welded to the busbar.
1 . A battery, comprising:
a battery cell, comprising an electrode terminal;
a sampling terminal, configured to collect a signal from the battery cell; and
a busbar, configured to electrically connect to the battery cell;
wherein the sampling terminal is disposed between the busbar and the electrode terminal and is welded to the busbar.
2 . The battery according to claim 1 , further comprising:
a welding portion, wherein the welding portion is configured to fixedly connect the busbar, the electrode terminal, and the sampling terminal.
3 . The battery according to claim 2 , wherein the busbar is provided with a groove on a side of the busbar facing the electrode terminal, and at least part of the sampling terminal is accommodated in the groove.
4 . The battery according to claim 3 , wherein the groove extends from an edge of the busbar in a direction orthogonal to a central axis of the electrode terminal.
5 . The battery according to claim 4 , wherein a projection of the groove on the electrode terminal does not exceed the central axis of the electrode terminal.
6 . The battery according to claim 3 , wherein depth H of the groove and thickness h1 of the sampling terminal satisfy h1−0.05 mm≤H≤h1+0.05 mm.
7 . The battery according to claim 3 , wherein depth H of the groove and thickness h of the busbar satisfy H≤h/2.
8 . The battery according to claim 3 , wherein the welding portion is annular and an end of the sampling terminal is located within an annular region enclosed by the welding portion.
9 . The battery according to claim 8 , wherein width W of the groove, width w1 of the sampling terminal, and diameter D of the annular region satisfy w1+1 mm≤W≤πD/8.
10 . The battery according to claim 8 , wherein the end of the sampling terminal does not exceed the central axis of the electrode terminal, and distance A between the end of the sampling terminal and the central axis of the electrode terminal and diameter D of the annular region satisfy 0≤A≤D/2−1 mm.
11 . The battery according to claim 1 , wherein the busbar is provided with a through-hole, the electrode terminal is exposed through the through-hole, and the through-hole is staggered with the sampling terminal in a thickness direction of the sampling terminal.
12 . The battery according to claim 1 , wherein the busbar, the electrode terminal, and the sampling terminal are made of a same material.
13 . An electric device comprising the battery according to claim 1 , wherein the battery is configured to supply electric energy.
14 . A manufacturing method of battery, comprising:
providing a battery cell, the battery cell comprising an electrode terminal;
providing a sampling terminal, the sampling terminal being configured to collect a signal from the battery cell;
providing a busbar; and
disposing the sampling terminal between the busbar and the electrode terminal, and welding the busbar to the sampling terminal.
15 . A manufacturing device of battery, comprising:
a providing module, configured to provide a battery cell, a sampling terminal, and a busbar, wherein the battery cell comprises an electrode terminal, and the sampling terminal is configured to collect a signal from the battery cell; and
an assembling module, configured to dispose the sampling terminal between the busbar and the electrode terminal, and weld the busbar to the sampling terminal.