Pre-stacking device, pre-stacking method, and battery processing equipment
View Patent ↗The present application relates to a pre-stacking device, a pre-stacking method, and a battery processing equipment. The pre-stacking device includes: at least two conveying members, each having at least two bearing positions for placing battery cells; a pre-stacking platform with a stacking station; and a gripping mechanism arranged between the pre-stacking platform and all the conveying members to move the battery cells on each of the conveying members to the stacking station; the gripping mechanism being configured to be capable of gripping corresponding battery cells from each of the conveying members according to a preset battery-cell polarity combination mode.
1 . A pre-stacking method comprising the steps of:
acquiring a preset battery-cell polarity combination mode, the acquiring the preset battery-cell polarity combination mode further comprising acquiring a first polarity combination mode, wherein in the first polarity combination mode, polarities of adjacent battery cells are alternately arranged; and
in response to the acquired battery-cell polarity combination mode being the first polarity combination mode, controlling a gripping mechanism to:
grip a group of battery cells from a first conveying member and place the group of battery cells from the first conveying member on a stacking station, and grip a group of battery cells from a second conveying member and place the group of battery cells from the second conveying member on the stacking station, the group of battery cells from the first conveying member and the group of battery cells from the second conveying member each having sticked tape;
repeat the above gripping action until a free position for a single group of battery cells remains on the stacking station; and
grip a group of battery cells from a third conveying member and place the group of battery cells from the third conveying member in the free position on the stacking station, a polarity of the group of battery cells from the third conveying member is opposite to that of the group of battery cells adjacent thereto, the group of battery cells from the third conveying member not having sticked tape, such that every two adjacent battery cells on the stacking station are bonded and fixed to each other by the corresponding sticked tape on one of the two adjacent battery cells.
2 . The pre-stacking method according to claim 1 , wherein the step of acquiring a preset battery-cell polarity combination mode further comprises:
acquiring a second polarity combination mode, wherein in the second polarity combination mode, two adjacent battery cells are treated as a unit, and the polarities of the adjacent units are alternately arranged.
3 . The pre-stacking method according to claim 2 , further comprising:
in response to the acquired polarity combination mode being the second polarity combination mode, controlling the gripping mechanism to:
grip two groups of battery cells from the first conveying member and place them on the stacking station, and grip two groups of battery cells from the second conveying member and place them on the stacking station;
repeat the above gripping action until the free position for a single group of battery cells remains on the stacking station; and
grip a group of battery cells from the third conveying member and place them in the free position on the stacking station, wherein the polarity of the group of battery cells gripped from the third conveying member is the same as that of the group of battery cells adjacent thereto.
4 . The pre-stacking method according to claim 1 , further comprising:
controlling the gripping mechanism to bring the battery cells thereon to turn over, so that the battery cells turn over from a flat state to a state with electrode terminals facing upwards;
rotating the battery cells on the gripping mechanism so that sticked tape on each battery cell faces a same direction; and
placing, on the stacking station, the battery cells in the state with the electrode terminals facing upwards.
5 . The pre-stacking method according to claim 1 , further comprising, after the step of in response to the acquired battery-cell polarity combination mode, controlling a gripping mechanism to grip corresponding battery cells from each conveying member and place them on a stacking station, the step of:
controlling the supporting member to rotate so that one of the stacking stations on the supporting member having the battery cells placed thereon is arranged opposite to a pressing mechanism; and
controlling the pressing mechanism to exert a force on the battery cells in the stacking station opposite to the pressing mechanism that causes the battery cells to approach each other along the arrangement direction of the battery cells.