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公开(公告)号：EP4203092A1
公开(公告)日：2023-06-28
申请号：EP21889563.9
申请日：2021-11-03
IPC分类号： H01M4/13 , H01M4/62 , H01M10/052 , H01M4/02
摘要： Disclosed is an electrode including a multilayer structured electrode active material layer having two or more stacked sub-layers. The electrode is characterized in that the content of repeating unit (c) derived from a vinyl cyanide compound and repeating unit (d) derived from a (meth)acrylate compound in the lower layer is smaller than the content in the upper layer. It is possible to improve the binding force and resistance characteristics of the multilayer structured electrode by using a different composition of binder at the bottommost portion that is in contact with the current collector and at the topmost portion that is in contact with the separator. When using the multilayer structured electrode obtained by controlling the binder composition of the topmost portion and that of the bottommost portion to have a suitable composition of ingredients, it is possible to further improve battery performance, including capacity, life, output, or the like.
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公开(公告)号：EP4190456A1
公开(公告)日：2023-06-07
申请号：EP21892149.2
申请日：2021-10-07
发明人： LEE, Taek-Soo , JEON, Shin-Wook , CHOY, Sang-Hoon , KIM, Man-Hyeong , KIM, Young-Gon , JO, Young-Joon , CHO, Jin-Ho
摘要： Disclosed is a dual slot die coater capable of discharging a coating solution through an outlet after removing air bubbles contained in the coating solution. The dual slot die coater according to the present disclosure includes a lower air vent installed in the lower manifold region and an upper air vent installed in the upper manifold region.
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公开(公告)号：EP4154994A1
公开(公告)日：2023-03-29
申请号：EP21886820.6
申请日：2021-10-27
发明人： LEE, Taek-Soo , JEON, Shin-Wook , CHO, Jin-Ho , CHOY, Sang-Hoon
摘要： Provided is a slot die coater capable of uniformly forming a coating boundary formed in a machine direction (MD). The slot die coater includes at least two die blocks; a shim plate provided between the two die blocks to form a slot; and a manifold provided in the die block and configured to accommodate a coating solution, wherein the coating solution is discharged and applied to a substrate through a discharge port communicatively connected with the slot an end of the shim plate is moved backward relative to a die lip which is a front end of the die block so as to be offset relative to the die lip.
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公开(公告)号：EP4275799A1
公开(公告)日：2023-11-15
申请号：EP22898893.7
申请日：2022-11-04
发明人： JO, Young-Joon , YOU, Seong-Jae , LEE, Taek-Soo , CHOI, Min-Hyuck , JEON, Shin-Wook , CHOY, Sang-Hoon
摘要： A slot die coater of the present disclosure includes a lower die block and an upper die block; a shim plate interposed between the lower die block and the upper die block to form a slot therebetween; and a manifold disposed in the lower die block, the manifold accommodating a coating solution, wherein the coating solution is delivered and coated on a substrate through an exit port in communication with the slot, and wherein the shim plate includes a plate-shaped member having an open portion which is cut in at least an area to determine a coating width of a coating layer coated on the substrate, and a structure protruding from the plate-shaped member and inserted into the manifold.
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公开(公告)号：EP4273952A1
公开(公告)日：2023-11-08
申请号：EP22828730.6
申请日：2022-06-21
摘要： Provided is an electrode for an electrochemical device. The electrode has a multilayer structure, and the electrode end portion has a stair-like structure due to the areal difference of each layer, thereby facilitating control of the capacity ratio of the positive electrode to the negative electrode. In terms of the electrode processing, the process for manufacturing an electrode including formation of a stair-like structure provides higher processing efficiency as compared to the process of accurately matching the ends of the electrodes. Therefore, when controlling the electrode manufacturing process to realize a multilayer electrode having an adequate stair width that is not excessively out of range, it is possible to enhance the processing efficiency and to control the capacity ratio of the resultant electrode.
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公开(公告)号：EP4260949A1
公开(公告)日：2023-10-18
申请号：EP22898790.5
申请日：2022-09-07
发明人： LEE, Taek-Soo , KIM, Young-Gon , YOU, Seong-Jae , LEE, Do-Yeon , JEON, Shin-Wook , JO, Young-Joon , CHOY, Sang-Hoon
摘要： There is provided a dual slot die coater that is easy to align die lips. The dual slot die coater of the present disclosure includes a first slot and a second slot to deliver a coating solution in an opposite direction of gravity, and includes a first die block vertically installed and integrally formed with a base at a rear of an upper surface of the base; a second die block positioned in contact with the base in front of the first die block to form the first slot between the second die block and the first die block; and a third die block positioned in contact with the base in front of the second die block to form the second slot between the third die block and the second die block.
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公开(公告)号：EP4154992A1
公开(公告)日：2023-03-29
申请号：EP21872806.1
申请日：2021-09-13
发明人： LEE, Taek-Soo , KANG, Min-Kyu , JEON, Shin-Wook , CHOY, Sang-Hoon
摘要： Provided is a multi-slot die coater with reduced structural vulnerability to deformation and twist. The multi-slot die coater according to the present disclosure includes a lower slot and an upper slot to extrude and coat a coating solution on a surface of a continuously moving substrate through at least one of the lower slot or the upper slot, and includes a lower die block; an intermediate die block positioned on the lower die block such that the lower slot is formed between the intermediate die block and the lower die block; and an upper die block positioned on the intermediate die block such that the upper slot is formed between the upper die block and the intermediate die block, wherein at least some of contact surfaces between the lower die block, the intermediate die block and the upper die block are inclined relative to a horizontal plane and a bolt is fastened perpendicular to the inclined contact surface.
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公开(公告)号：EP4154991A1
公开(公告)日：2023-03-29
申请号：EP21872740.2
申请日：2021-08-25
发明人： LEE, Taek-Soo , JEON, Shin-Wook , CHOY, Sang-Hoon
摘要： There is provided a multi-slot die coater including a manifold for a uniform flow of an electrode active material slurry without stagnation. The multi-slot die coater of the present disclosure includes a first manifold in which a first coating solution is received and a second manifold in which a second coating solution is received. The first manifold is a chamber of an inwardly recessed shape, and includes a first surface and a second surface having different angles to a lower slot at a location close to the lower slot, and the angle of the first surface closest to the lower slot is formed at a level of 30-70% of the second surface following the first surface.
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公开(公告)号：EP4147790A1
公开(公告)日：2023-03-15
申请号：EP21858527.1
申请日：2021-08-11
摘要： There is provided a multi-slot die coater that is easy to adjust a coating gap and can achieve widthwise deviation control of the coating gap. According to a configuration of the present disclosure, a step is formed between rear surfaces of die blocks through a fixing block having a step portion. The fixing block has the step portion of a preset height, and any one die block is coupled to the step portion and the other die block is coupled to the other portion than the step portion, and thus the step is naturally formed between the rear surfaces of the die blocks by the coupling of the die blocks to the fixing block. Thus, it is possible to always maintain the distance of the front ends of the die blocks and the substrate, i.e., the coating gap at a desired level, and since the fixing block is fixed between the die blocks, once it is set, the coating gap does not change and is maintained during the process, thereby suppressing the widthwise coating gap deviation.
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公开(公告)号：EP4260950A1
公开(公告)日：2023-10-18
申请号：EP22895842.7
申请日：2022-09-30
发明人： CHOI, Hyung-Woo , KANG, Sung-Mo , KIM, Sang-Min , MUN, Kyoung-Rok , PARK, Jong-Goo , SHIN, Jong-Woo , AHN, Do-Young , LEE, Jae-Pil , JEON, Shin-Wook , CHOY, Sang-Hoon
摘要： A slurry supply device and a slurry supply method are disclosed. A slurry supply device according to an embodiment of the present disclosure includes a slurry tank for storing slurry; a temperature controller for supplying hot or cold water to the slurry tank to control the temperature of the slurry; and a double pipe for supplying the slurry to the slurry tank while being connected to the slurry tank and for allowing hot or cold water to move to control the temperature of the slurry.
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