公开(公告)号：US12129366B2

公开(公告)日：2024-10-29

申请号：US18326082

申请日：2023-05-31

申请人： SK Innovation Co., Ltd. ,  SK Geo Centric Co., Ltd.

发明人： Hye Jin Lee ,  Jong Sang Park ,  Dae Sig Hong ,  Sang Mook Kang

IPC分类号： C08L23/06 ,  H01M50/417

CPC分类号： C08L23/06 ,  C08L2207/062 ,  C08L2207/20 ,  H01M50/417

摘要： A polymer composition for manufacturing a small to medium-sized container and which includes a high-density polyethylene (HDPE) recovered from a secondary battery separator. A polymer composition having excellent processability may be prepared by recycling a secondary battery separator. The polymer composition may be molded to manufacture an environmentally friendly small to medium-sized container, such as a small to medium-sized container, having excellent flexural strength, elongation, impact strength, and environmental stress crack resistance.

公开(公告)号：US20240347861A1

公开(公告)日：2024-10-17

申请号：US18619929

申请日：2024-03-28

申请人： Ningde Amperex Technology Limited

发明人： Qiao ZENG ,  Tianjing ZHANG

IPC分类号： H01M50/46 ,  H01M50/119 ,  H01M50/417 ,  H01M50/42 ,  H01M50/426 ,  H01M50/449 ,  H01M50/466

CPC分类号： H01M50/46 ,  H01M50/119 ,  H01M50/417 ,  H01M50/42 ,  H01M50/426 ,  H01M50/449 ,  H01M50/466

摘要： A secondary battery includes an electrode assembly and a pocket. The electrode assembly includes a plurality of electrode plates and a separator including a first separator layer and a second separator layer. The plurality of electrode plates include a first outermost electrode plate, a second outermost electrode plate, a first second-to-outermost electrode plate, and a second second-to-outermost electrode plate. The first outermost electrode plate and the second outermost electrode plate are located on two opposite sides of the plurality of electrode plates in the first direction. The first outermost electrode plate and the first second-to-outermost electrode plate are located on two opposite sides of the first separator layer. The second outermost electrode plate and the second second-to-outermost electrode plate are located on two opposite sides of the second separator layer. The pocket includes a first sidewall extending in the first direction.

公开(公告)号：US20240332743A1

公开(公告)日：2024-10-03

申请号：US18385144

申请日：2023-10-30

申请人： Sumitomo Chemical Company, Limited

发明人： Akihiko SHIN ,  Yuki YONEGUCHI

IPC分类号： H01M50/489 ,  H01M50/417 ,  H01M50/423 ,  H01M50/449

CPC分类号： H01M50/489 ,  H01M50/417 ,  H01M50/423 ,  H01M50/449

摘要： Provided is a nonaqueous electrolyte secondary battery separator capable of satisfactorily maintaining ion permeability even after being compressed. The nonaqueous electrolyte secondary battery separator includes a polyolefin porous film in which an average of inclination angles of major axes of voids extracted from a two-dimensional image of a cross section of the polyolefin porous film is not less than 7.0, the inclination angles being calculated from respective circumscribed rectangles of the voids, the two-dimensional image being obtained by use of SEM, and the cross section being formed by cutting the polyolefin porous film (i) along a straight line that passes a center of a surface of the polyolefin porous film and is parallel to an MD or a TD and (ii) in a direction perpendicular to the surface.

公开(公告)号：US20240327550A1

公开(公告)日：2024-10-03

申请号：US18613397

申请日：2024-03-22

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Kazuya Shikata ,  Natsumi Shiozawa ,  Keisuke Hirami ,  Naoya Okitsu ,  Tomosato Okubo ,  Noriko Horiike ,  Wataru Mizutani

IPC分类号： C08F10/02 ,  H01M50/417 ,  H01M50/443

CPC分类号： C08F10/02 ,  H01M50/417 ,  H01M50/443

摘要： An object of the present invention is to provide, for example, a polyethylene powder that can produce a shaped article excellent in balance between mechanical strength and a rate of thermal shrinkage even when shaped at a high speed. Provided is a polyethylene powder having intrinsic viscosity IV of 1.5 dL/g or more and 15.0 dL/g or less measured in accordance with ISO1628-3 (2010), an amorphous moiety thickness of 5.3 nm or larger and 12.0 nm or smaller, and a crystallite size of 13.9 nm or larger and 18.0 nm or smaller obtained by a reflection method of X-ray diffraction.

公开(公告)号：US20240322372A1

公开(公告)日：2024-09-26

申请号：US18519060

申请日：2023-11-26

申请人： Contemporary Amperex Technology Co., Limited ,  SINOMA LITHIUM BATTERY SEPARATOR (CHANGDE) CO., LTD.

发明人： Jianrui Yang ,  Fenggang Zhao ,  Lianguang Wang ,  Tianle Yang

IPC分类号： H01M50/451 ,  H01M50/406 ,  H01M50/417

CPC分类号： H01M50/451 ,  H01M50/406 ,  H01M50/417

摘要： The present application provides a separator and a preparation method thereof, an electrochemical device, an electrochemical apparatus and a powered device. The separator comprises a base film, the base film has a tensile energy per unit thickness of ≥1.8 J/10 μm in both MD direction and TD direction, and an elongation of ≥150% in both MD direction and TD direction, and the thickness of the base film is 2 μm˜40 μm.

公开(公告)号：US20240322260A1

公开(公告)日：2024-09-26

申请号：US18731354

申请日：2024-06-03

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Hailin Zou ,  Peipei Chen

IPC分类号： H01M10/42 ,  C07D213/79 ,  C07F9/50 ,  H01M10/0525 ,  H01M10/054 ,  H01M50/417 ,  H01M50/426 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489

CPC分类号： H01M10/4235 ,  C07D213/79 ,  C07F9/5004 ,  C07F9/5022 ,  H01M10/0525 ,  H01M10/054 ,  H01M50/417 ,  H01M50/426 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489 ,  H01M2220/20

摘要： The present application provides a secondary battery and an electrical apparatus containing the same. The secondary battery includes a positive electrode sheet, a negative electrode sheet, a separator disposed between the positive electrode sheet and the negative electrode sheet, and an electrolyte solution, wherein the separator includes a substrate and an inorganic and/or organic particle layer disposed on at least one surface of the substrate, and the separator further includes an acid scavenging additive located among the inorganic and/or organic particles of the inorganic and/or organic particle layer or located in a form of a separate layer between the substrate and the inorganic and/or organic particle layer, wherein the maximum dissolution amount of the acid scavenging additive in the electrolyte solution at 25° C. is less than 1% by mass relative to the mass of the electrolyte solution.

公开(公告)号：US20240322241A1

公开(公告)日：2024-09-26

申请号：US18532662

申请日：2023-12-07

申请人： SK On Co., Ltd.

发明人： Min Woo PARK ,  Jeong Yun KIM ,  Seon Yeong PARK

IPC分类号： H01M10/0567 ,  H01M4/02 ,  H01M4/58 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/417

CPC分类号： H01M10/0567 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/417 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/004

摘要： An electrolyte for a lithium secondary battery according to an embodiment of the present disclosure includes, a non-aqueous organic solvent including a propionate solvent; and a lithium salt. The propionate solvent includes at least one of ethyl propionate (EP) and propyl propionate (PP). The lithium salt includes lithium hexafluorophosphate (LiPF6) and lithium bisfluorosulfonylimide (LiFSI).

公开(公告)号：US12100831B2

公开(公告)日：2024-09-24

申请号：US17285417

申请日：2020-05-28

申请人： LG ENERGY SOLUTION, LTD.

发明人： Myeongjun Song ,  Myeongseong Kim ,  Minsu Kim ,  Intae Park

IPC分类号： H01M4/00 ,  H01M4/133 ,  H01M4/36 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/431 ,  H01M50/451 ,  H01M4/02

CPC分类号： H01M4/362 ,  H01M4/133 ,  H01M4/5815 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/431 ,  H01M50/451 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2300/0034

摘要： Disclosed is a lithium secondary battery, and in particular, to a lithium secondary battery capable of obtaining higher energy density and longer lifetime compared to existing lithium secondary batteries by specifying conditions of a positive electrode and an electrolyte liquid and additionally surface modifying a carbon material through heat treatment or including a separator including a molybdenum disulfide coating layer.

公开(公告)号：US12100548B2

公开(公告)日：2024-09-24

申请号：US16934828

申请日：2020-07-21

申请人： Celgard, LLC

发明人： Lie Shi ,  C. Glen Wensley ,  Jill W. Watson

IPC分类号： H01M10/00 ,  H01G11/52 ,  H01M10/0525 ,  H01M50/417 ,  H01M50/449 ,  H01M50/489 ,  H01M50/491

CPC分类号： H01G11/52 ,  H01M10/0525 ,  H01M50/417 ,  H01M50/449 ,  H01M50/489 ,  H01M50/491 ,  Y02E60/13

摘要： Disclosed or provided are non-shutdown high melt temperature or ultra high melt temperature microporous battery separators, high melt temperature separators, battery separators, membranes, composites, and the like that preferably prevent contact between the anode and cathode when the battery is maintained at elevated temperatures for a period of time and preferably continue to provide a substantial level of battery function (ionic transfer, discharge) when the battery is maintained at elevated temperatures for a period of time, methods of making, testing and/or using such separators, membranes, composites, and the like, and/or batteries, high temperature batteries, and/or Lithium-ion rechargeable batteries including one or more such separators, membranes, composites, and the like.

公开(公告)号：US20240313273A1

公开(公告)日：2024-09-19

申请号：US18604044

申请日：2024-03-13

申请人： StoreDot, Ltd.

发明人： Daniel Aronov ,  Nir Kedem ,  Yaron Idesis ,  Dan Corfas ,  Assaf Zehavi ,  Zvi Ioffe

IPC分类号： H01M10/44 ,  H01M4/02 ,  H01M4/131 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/42 ,  H01M50/417 ,  H01M50/491

CPC分类号： H01M10/44 ,  H01M4/131 ,  H01M4/525 ,  H01M4/663 ,  H01M4/667 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/491 ,  H01M2004/028 ,  H01M2010/4292 ,  H01M2300/0037

摘要： Rechargeable battery cells and methods for extreme fast charging are disclosed. For example, such a rechargeable battery cell might be chargeable to at least 70% of usable capacity within 15 minutes. Such a rechargeable battery cell may include an anode having at least one surface with a reversible areal capacity, after formation, up to 8.0 mAh/cm2, and a cathode having at least one surface with a reversible areal capacity, after formation, up to 6 mAh/cm2, wherein a ratio of areal capacity of the at least one surface of the anode to the at least one surface of the cathode is between 1.15 to 1.45. Methods of charging rechargeable battery cells disclosed herein under conditions sufficient to enable charging of at least 70% of usable capacity to the rechargeable battery cell within 15 minutes, are also disclosed.