US 12,330,185 B2
Coating apparatus and coating method
Ning Li, Shenzhen (CN); Guishan Chen, Shenzhen (CN); Jin Chai, Shenzhen (CN); and Zheng Liu, Shenzhen (CN)
Assigned to SHENZHEN MANST TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 18/840,798
Filed by SHENZHEN MANST TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Feb. 24, 2022, PCT No. PCT/CN2022/077755
§ 371(c)(1), (2) Date Aug. 22, 2024,
PCT Pub. No. WO2023/159438, PCT Pub. Date Aug. 31, 2023.
Prior Publication US 2025/0108402 A1, Apr. 3, 2025
Int. Cl. B05C 5/02 (2006.01); B05C 11/10 (2006.01); H01M 4/04 (2006.01)
CPC B05C 5/0262 (2013.01) [B05C 11/1005 (2013.01); H01M 4/0404 (2013.01)] 9 Claims
OG exemplary drawing
 
1. Coating equipment, wherein the coating equipment comprises:
a coating die, wherein the coating die comprises:
a first slot configured for circulation of first slurry and a second slot configured for circulation of second slurry, wherein an intersection angle is formed between the first slot and the second slot;
a first adjusting mechanism, wherein the first adjusting mechanism comprises a first driving piece and a first adjusting piece, and a driving end of the first driving piece is connected with the first adjusting piece; and
a second adjusting mechanism, wherein the second adjusting mechanism comprises a second driving piece and a second adjusting piece, and a driving end of the second driving piece is connected with the second adjusting piece; and
a slurry parameter detector, wherein the slurry parameter detector is in communication connection with the first adjusting mechanism and the second adjusting mechanism and is configured to detect information of slurry on an electrode piece;
the coating equipment further comprises an upper die, a middle die and a lower die, wherein the upper die and the middle die define the first slot, and the lower die and the middle die define the second slot;
the first adjusting mechanism is arranged on the upper die and/or the middle die, and the second adjusting mechanism is arranged on the lower die and/or the middle die;
wherein,
the slurry parameter detector is configured to detect slurry information of the first slurry coated on the electrode piece via the first slot and form a first slurry parameter, and the first adjusting mechanism is configured to adjust the position of the first adjusting piece according to the first slurry parameter so as to adjust the flow rate of the first slurry circulating in the first slot; the slurry parameter detector is also configured to detect slurry information of the second slurry coated on the electrode piece via the second slot and form a second slurry parameter, and the second adjusting mechanism is configured to adjust the position of the second adjusting piece according to the second slurry parameter so as to adjust the flow rate of the second slurry circulating in the second slot;
at the intersection of the first slot and the second slot, the upper die and the lower die jointly define a die lip for slurry to flow out;
the lower die comprises a deformation part and a base part, the deformation part is arranged on a side close to the die lip, and the base part is arranged on a side away from the die lip;
the second driving piece is mounted on the base part, and the second adjusting piece is connected with the deformation part; the second adjusting piece has a die lip adjusting state of driving the deformation part to move towards or away from the base part under the action of the second driving piece, and in the die lip adjusting state, a lower lip of the lower die is warped relative to an upper lip of the upper die;
the first adjusting piece is a T-shaped block, and the T-shaped block comprises a rod part and an intercepting part in the shape of a rectangular block, the intercepting part is arranged on a side close to the first slot, and when the intercepting part extends into the first slot, interception of the circulating process of the first slurry can be realized, so that the flow rate of the first slurry is adjusted.