-
公开(公告)号：US20240261812A1
公开(公告)日：2024-08-08
申请号：US18567694
申请日：2022-09-30
发明人： Won-Sik BAE , So-Jung PARK , So-Yeong LEE , Jong-Yoon LEE , So-Mi JEONG
IPC分类号： B05C1/08 , H01M50/403
CPC分类号： B05C1/0808 , B05C11/10 , H01M50/403 , B05C1/0826
摘要： The present disclosure relates to a coating bar and a method for manufacturing a separator using the same.
The coating bar according to the present disclosure may form a coating layer having an area with different thicknesses by one coating.
Additionally, the method for manufacturing a separator according to the present disclosure includes forming a porous coating layer using a predetermined coating bar, to manufacture a separator including the porous coating layer having an area with different thicknesses. In particular, the present disclosure manufactures the separator having a larger thickness at the two ends than at the center, thereby avoiding a lack of adhesive strength at the two ends in a transverse direction in the adhesion between the separator and the electrode, and exhibiting uniform adhesive strength over the whole interface between the separator and the electrode.-
公开(公告)号：US20230405858A1
公开(公告)日：2023-12-21
申请号：US18036774
申请日：2022-08-22
发明人： Won-Sik BAE , Dong-Wook SUNG , So-Jung PARK , Jong-Yoon LEE , So-Mi JEONG
CPC分类号： B26D1/045 , H01M10/0431
摘要： A method for manufacturing unit cells includes preparing a pre-cell having a first separator sheet and a plurality of first electrodes disposed on the first separator sheet while being spaced apart from one another; forming a cutting guide line having a plurality of though-holes spaced apart from one another on the pre-cell; and cutting the pre-cell along the cutting guide line to form a plurality of unit cells. An apparatus for manufacturing unit cells includes a hole-forming unit configured to form a cutting guide line on a pre-cell having a separator sheet and electrodes disposed on the separator sheet where the cutting guide line has a plurality of though-holes spaced apart from one another; and a cutting unit configured to cut the pre-cell along the cutting guide line to form a plurality of unit cells.
-
公开(公告)号：US20230246299A1
公开(公告)日：2023-08-03
申请号：US18007923
申请日：2021-08-13
发明人： So-Yeong LEE , Ji-Eun KIM , So-Jung PARK , Dong-Wook SUNG
IPC分类号： H01M50/457 , H01M50/417 , H01M50/446
CPC分类号： H01M50/457 , H01M50/417 , H01M50/446
摘要： A separator, and an electrochemical device including the separator, including a porous polymer substrate including a core portion substrate having a plurality of pores, and skin portion substrates on both surfaces of the core portion substrate and having a plurality of pores; and a porous coating layer. Both the core portion substrate and the skin portion substrates include first inorganic particles, or only the core portion substrate includes first inorganic particles, and when both the core portion substrate and the skin portion substrates include the first inorganic particles, the core portion substrate includes the first inorganic particles at a higher weight percentage as compared to the skin portion substrates. The porous coating layer includes a plurality of second inorganic particles and a binder polymer partially or totally on surfaces of the second inorganic particles. The first inorganic particles have a higher Mohs hardness than the second inorganic particles.
-
公开(公告)号：US20240222794A1
公开(公告)日：2024-07-04
申请号：US18288283
申请日：2023-02-27
发明人： Won-Sik BAE , So-Yeong LEE , So-Jung PARK , So-Mi JEONG
IPC分类号： H01M50/451 , H01M10/0525 , H01M50/403 , H01M50/443
CPC分类号： H01M50/451 , H01M50/403 , H01M50/443 , H01M10/0525
摘要： A separator according to the present disclosure includes an organic/inorganic composite porous coating layer on a surface of a porous polymer substrate. The organic/inorganic composite porous coating layer includes a first region comprising a larger amount of inorganic particles and a second region comprising a smaller amount of inorganic particles so that electrolyte wettability is improved by the first region and high adhesion strength with electrode is maintained by the second region.
-
公开(公告)号：US20240332737A1
公开(公告)日：2024-10-03
申请号：US18579055
申请日：2022-10-12
发明人： So-Yeong LEE , So-Jung PARK , Won-Sik BAE , Jong-Yoon LEE , So-Mi JEONG
IPC分类号： H01M50/451 , H01M50/417 , H01M50/463 , H01M50/491 , H01M50/531
CPC分类号： H01M50/451 , H01M50/417 , H01M50/463 , H01M50/491 , H01M50/531
摘要： Disclosed is a separator including a separator substrate and an inorganic coating layer disposed on at least one surface of the substrate, wherein a concave pattern portion having a concave pattern is applied merely at the outer circumferential end of the separator substrate. The separator may show excellent resistance characteristics, while ensuring high binding force between the separator substrate and the inorganic coating layer by virtue of such a structural feature. In addition, in the electrochemical device including the separator, the concave pattern portion at the outer circumferential end of the separator is disposed in such a manner that it may be overlapped with the tab portion of an electrode, when the separator is applied to an electrode assembly. In this manner, it is possible to prevent lithium plating.
-
公开(公告)号：US20240304868A1
公开(公告)日：2024-09-12
申请号：US18273639
申请日：2023-01-12
发明人： So-Yeong LEE , Won-Sik BAE , Kyung-Tae KIM , So-Jung PARK , Kyeong-Hui BAE , So-Mi JEONG
IPC分类号： H01M10/0583 , H01M10/052 , H01M50/417 , H01M50/431 , H01M50/443 , H01M50/451 , H01M50/457 , H01M50/46 , H01M50/466 , H01M50/489
CPC分类号： H01M10/0583 , H01M10/052 , H01M50/417 , H01M50/431 , H01M50/443 , H01M50/451 , H01M50/457 , H01M50/46 , H01M50/466 , H01M50/489
摘要： A separator, an electrode assembly and an electrochemical device including the same are provided. The separator is used for a zigzag stacking-type electrode assembly, and includes a porous substrate made of a polymer material and a porous coating layer formed on opposite surfaces of the porous substrate and containing inorganic particles. A thickness (Ts) of the porous substrate decreases gradually from opposite ends toward a central portion based on a longitudinal direction of the separator, a total thickness (Tc) of the porous coating layers increases gradually toward the central portion, and a total thickness (Ts+Tc) of the separator is constant.
-
7.发明公开公开(公告)号：US20230187780A1
公开(公告)日：2023-06-15
申请号：US17921285
申请日：2021-10-18
发明人： So-Jung PARK , Ji-Eun KIM , So-Yeong LEE
IPC分类号： H01M50/446 , H01M50/457 , H01M50/426 , H01M50/42 , H01M10/052
CPC分类号： H01M50/446 , H01M50/457 , H01M50/426 , H01M50/42 , H01M10/052
摘要： A separator for a lithium secondary battery and a lithium secondary battery including the separator, where the separator includes a porous polymer substrate; and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes inorganic particles having a Mohs hardness of 3.5 to 8.5 and a binder polymer. The binder polymer includes a first binder polymer having a storage modulus at 70° C. of 500 Mpa or more. The separator shows excellent compression resistance.
-
8.发明公开公开(公告)号：US20230420801A1
公开(公告)日：2023-12-28
申请号：US18039085
申请日：2022-08-26
发明人： So-Jung PARK , Won-Sik BAE , Jong-Yoon LEE , So-Yeong LEE , So-Mi JEONG
IPC分类号： H01M50/446 , H01M50/491 , H01M50/46 , H01M10/052
CPC分类号： H01M50/446 , H01M50/491 , H01M50/461 , H01M10/052
摘要： A separator for an electrochemical device, including a porous substrate, and a porous coating layer on at least one surface of the porous substrate. The porous coating layer includes a binder polymer and an inorganic filler, and satisfies Formula 1 of 20≤[amount of inorganic filler (wt %)×BET surface area of inorganic filler (m2/g)]/[amount of binder polymer (wt %)]≤30, wherein the amount of binder polymer and the amount of inorganic filler are based on 100 wt % of the total weight of the porous coating layer.) The separator ensures the safety of the electrochemical device, while providing improved adhesion between the porous substrate and the porous coating layer of the separator and improved adhesion to an electrode, thereby achieving improved heat resistance and stability.
-
9.发明公开公开(公告)号：US20230411794A1
公开(公告)日：2023-12-21
申请号：US18036748
申请日：2022-05-06
发明人： So-Yeong LEE , Ji-Eun KIM , So-Jung PARK , Dong-Wook SUNG
IPC分类号： H01M50/491 , H01M50/417 , H01M50/451
CPC分类号： H01M50/491 , H01M50/417 , H01M50/451 , H01M10/0525
摘要： The present disclosure relates to a porous substrate for a separator. The porous substrate according to the present disclosure has a small and uniform pore size, thus having excellent physical strength and durability, and can secure a high dielectric breakdown voltage, resulting in a low short-circuit occurrence rate.
-
公开(公告)号：US20230361430A1
公开(公告)日：2023-11-09
申请号：US18224211
申请日：2023-07-20
发明人： Won-Sik BAE , Dong-Hun BAE , So-Jung PARK , Jong-Yoon LEE , So-Mi JEONG
IPC分类号： H01M50/451 , H01M50/417 , H01M50/443 , H01M50/434 , H01M50/426 , H01M50/446 , H01M50/463 , H01M50/489 , H01M50/46 , H01M10/052 , H01M10/0585
CPC分类号： H01M50/451 , H01M50/417 , H01M50/443 , H01M50/434 , H01M50/426 , H01M50/446 , H01M50/463 , H01M50/489 , H01M50/46 , H01M10/052 , H01M10/0585
摘要： A separator for an electrochemical device, an electrode assembly and secondary battery including the same, and a method of manufacturing the separator. The separator for an electrochemical device includes a porous polymer substrate; and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a binder polymer and inorganic particles. The separator has a central portion and two end portions. The thickness of the separator at the two end portions in the transverse direction (TD) is larger than the thickness of the separator at the central portion in the TD. The separator prevents generation of a deficiency in adhesion at the two end portions in the TD upon the adhesion of the separator with the electrodes and has uniform adhesion by controlling the thickness of the two end portions of the separator in the TD.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.016 秒)
