公开(公告)号：EP4131627A1

公开(公告)日：2023-02-08

申请号：EP21781623.0

申请日：2021-03-26

申请人： Toray Industries, Inc.

发明人： KAMON, Keiichi ,  KAI, Nobuyasu ,  TANAKA, Hiroko ,  TSUKUDA, Akimitsu ,  IMAZU, Naoki

IPC分类号： H01M50/489 ,  B32B5/32 ,  C08F220/24 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451

摘要： Provided is a porous film having high adhesiveness to electrodes and having excellent thermal dimensional stability and battery properties. This porous film includes a porous substrate and, on at least one surface of the porous substrate, a porous layer including inorganic particles and organic particles A, said organic particles A having adhesiveness to electrodes. The inorganic particle content in the porous layer is 50% by mass to 95% by mass. In 50 measurements of the surface elastic modulus of the porous layer, the value of α/β is 10 to 40, where α is the surface elastic modulus indicating the inorganic particles, and β is the minimum of the measured values, and the percentage of the 50 measured values that are included in the range from β to 2β is 30% to 100%.

公开(公告)号：EP4123751A1

公开(公告)日：2023-01-25

申请号：EP22182575.5

申请日：2022-07-01

申请人： Ricoh Company, Ltd.

发明人： Nose, Daisuke ,  Kanno, Yusuke ,  Higashi, Ryuji ,  Matsuoka, Kohji ,  Ohmura, Tomoya

IPC分类号： H01M4/13 ,  H01M4/139 ,  H01M50/403 ,  H01M50/431 ,  H01M50/443 ,  H01M50/446 ,  H01M50/414 ,  H01M50/46

摘要： A liquid composition containing particles and a dispersion medium is provided, in which a variation coefficient determined by dividing a standard deviation of an area ratio of the particles in an arbitrary cross section of the liquid composition by an average value of the area ratio is 0.07 or larger.

公开(公告)号：EP4120460A1

公开(公告)日：2023-01-18

申请号：EP22184785.8

申请日：2022-07-13

申请人： Ningde Amperex Technology Limited

发明人： SONG, Chuantao

IPC分类号： H01M50/443 ,  H01M50/489 ,  H01M10/0525 ,  H01M50/417 ,  H01M50/446 ,  H01M50/449 ,  H01M50/454 ,  H01M50/46 ,  H01M10/0587

摘要： A separator, a lithium-ion cell including the separator, and an electric apparatus including the lithium-ion cell. The separator includes a separator substrate and a coating layer disposed on the separator substrate, and the separator is adhered to an adjacent first electrode plate or second electrode plate through the coating layer. The coating layer is configured to decrease a peel force between the separator and an external component when a temperature is higher than a preset threshold or to be capable of chemically reacting with an acidic substance. When the temperature is higher than a threshold, the peel force between the separator and an adjacent electrode plate is decreased. To be specific, such lithium-ion cell can improve a current situation that the peel force between the separator and the electrode plate remains relatively great when the temperature of the cell is higher than a threshold.

公开(公告)号：EP4075543A2

公开(公告)日：2022-10-19

申请号：EP22165713.3

申请日：2022-03-30

申请人： Ningde Amperex Technology Ltd.

发明人： ZHANG, Hanxiang

IPC分类号： H01M4/133 ,  H01M4/587 ,  H01M50/417 ,  H01M50/434 ,  H01M50/443 ,  H01M50/46 ,  H01M50/451 ,  H01M50/457

摘要： An electrochemical device includes a negative electrode active material layer and a separator. The separator includes a substrate and an adhesive layer. The negative electrode active material layer includes a hard carbon. The negative electrode active material layer has a porosity of 20% to 60%. The adhesive layer has an adhesive force of 5 N to 20 N.

公开(公告)号：EP3553868B1

公开(公告)日：2022-09-14

申请号：EP18801673.7

申请日：2018-05-15

发明人： CHO, Sung-Ju ,  SHIN, Ho-Suk ,  WOO, Seung-He ,  KANG, Sung-Joong ,  HAN, Hyea-Eun

IPC分类号： H01M10/0562 ,  H01M10/056 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/40 ,  H01M50/431 ,  H01M50/44 ,  H01M50/443 ,  H01M50/42

公开(公告)号：EP3937302A1

公开(公告)日：2022-01-12

申请号：EP21184369.3

申请日：2021-07-07

申请人： SK Innovation Co., Ltd. ,  SK ie technology Co., Ltd.

发明人： JI, Sang Yoon ,  KIM, Yun Bong ,  LEE, Dong Yeon

IPC分类号： H01M50/44 ,  H01M50/443 ,  H01M10/42 ,  H01M50/403 ,  H01M50/411 ,  H01M50/431 ,  H01M50/434 ,  H01M50/446 ,  H01M50/451 ,  H01M50/454 ,  H01M50/489 ,  H01M50/491 ,  H01G11/52 ,  H01M50/457 ,  H01M50/417 ,  H01M10/0525

摘要： The present invention relates to an electrochemical device capable of securing battery safety and improving battery performance by including a new separator having excellent thermal stability, excellent electrochemical stability, excellent lithium ion conductivity, and a preferred rate of electrolyte impregnation as compared with a polyolefin-based organic/inorganic composite porous separator according to the related art.

公开(公告)号：EP4459776A1

公开(公告)日：2024-11-06

申请号：EP24172175.2

申请日：2024-04-24

申请人： SK Innovation Co., Ltd. ,  SK ie technology Co., Ltd.

发明人： JI, Sang Yoon ,  AHN, Jun Hwan ,  LEE, Chang Hee ,  KIM, Jun Hyung

IPC分类号： H01M50/403 ,  H01M50/423 ,  H01M50/431 ,  H01M50/443 ,  H01M50/446 ,  H01M10/0525

摘要： Provided are a separator, a method for manufacturing the same, and a secondary battery including the same.
Specifically, a separator including hollow adhesive particles, a method for manufacturing the same, and a secondary battery including the same are provided. The separator according to an exemplary embodiment of the present disclosure includes: a porous substrate; and at least one coating layer which is placed on one or both surfaces of the porous substrate and includes inorganic particles and hollow adhesive particles. The separator of the present disclosure has improved surface adhesive strength, so that it may be adhered to an electrode with high adhesive strength. The present invention further provides a method for manufacturing a secondary battery including the separator. Further provided is a use of the hollow adhesive particles to increase adhesion to a porous separator substrate, and/or to suppress swelling of a separator in a secondary battery.

公开(公告)号：EP4443630A3

公开(公告)日：2024-10-30

申请号：EP24172681.9

申请日：2020-11-30

申请人： Contemporary Amperex Technology (Hong Kong) Limited

发明人： CHENG, Cong ,  HONG, Haiyi ,  LAN, Yuanyuan ,  YANG, Jianrui ,  LIU, Na ,  JIN, Haizu

IPC分类号： H01M50/446 ,  H01M50/451 ,  H01M50/403 ,  H01M50/417 ,  H01M50/42 ,  H01M50/449 ,  H01M50/489 ,  H01M10/42 ,  H01M50/414 ,  H01M50/431 ,  H01M50/491 ,  H01M50/494 ,  H01M50/443

摘要： The present application relates to a separator in the electrochemical field and a preparation method therefor, and to a secondary battery comprising the separator, a device comprising the secondary battery. The separator of the present application is prepared by a simple process and has excellent heat resistance performance. Moreover, the secondary batteries and devices comprising the separator of the present application have good safety performance and cycling performance.

公开(公告)号：EP4451451A1

公开(公告)日：2024-10-23

申请号：EP23880310.0

申请日：2023-10-23

申请人： LG Energy Solution, Ltd.

发明人： KIM, Ji Hyeon ,  SUNG, Dong Wook ,  KA, Kyung Ryun ,  SUNG, In Hyouk ,  KIM, Hye Won

IPC分类号： H01M50/451 ,  H01M50/446 ,  H01M50/403 ,  H01M50/46 ,  H01M50/414 ,  H01M50/443 ,  H01M50/491

摘要： There is provided a separator for a secondary battery, which has excellent dimensional stability even at high temperatures when it is a wet state in which an electrolyte has been injected. According to one aspect of the present disclosure, there is provided a separator for a secondary battery, including: a porous substrate; and a functional coating layer disposed on at least one surface of the porous substrate, wherein the functional coating layer includes a first coating layer and a second coating layer disposed on the first coating layer, the first coating layer contains inorganic particles, an acrylic binder, and polydopamine, and the second coating layer contains polydopamine.

公开(公告)号：EP4439757A1

公开(公告)日：2024-10-02

申请号：EP22895730.4

申请日：2022-11-21

申请人： National Institute of Advanced Industrial Science and Technology

发明人： SUZUKI, Muneyasu ,  USHIJIMA, Hirobumi

IPC分类号： H01M10/052 ,  H01M4/13 ,  H01M10/0565 ,  H01M10/058 ,  H01M50/414 ,  H01M50/434 ,  H01M50/44 ,  H01M50/443 ,  H01M50/446 ,  H01M50/489

CPC分类号： Y02E60/10 ,  Y02P70/50 ,  H01M10/0565 ,  H01M4/13 ,  H01M10/052 ,  H01M50/489 ,  H01M50/434 ,  H01M50/446 ,  H01M50/414 ,  H01M10/058 ,  H01M50/443 ,  H01M50/44

摘要： An embodiment of the present invention provides a flexible all-solid-state battery including a weight energy density comparable to that of a conventional lithium-ion battery using an electrolytic solution and having a high level of safety that does not short-circuit even when bent under an excessive bending load. According to an embodiment of the present invention, a flexible all-solid-state battery including a layer of a solid-state polymer electrolyte arranged between a layer of a separator supporting the solid-state polymer electrolyte and a layer including a negative electrode active material is provided. In the flexible all-solid-state battery, the separator may include a woven fabric, a knit, or a non-woven cloth of an inorganic fiber or a polymeric fiber of 1 g/m2 to 70 g/m2 with a thickness in a range from 1 µm to 100 µm, an oxide ceramic particle layer including oxide ceramic particles with a particle size from 1 µm to 20 µm at a filling rate in a range from 5% to 60%, or a complex of the woven fabric, the knit, or the non-woven cloth and the oxide ceramic particles.