公开(公告)号：US20250062504A1

公开(公告)日：2025-02-20

申请号：US18637285

申请日：2024-04-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyung Dong LEE ,  Jae Hyung KIM ,  Seung Il KIM

IPC: H01M50/538 ,  H01M10/04 ,  H01M10/647

Abstract: An electrode assembly for a battery includes: a positive electrode plate including a positive electrode current collector plate, a positive electrode active material layer on a surface of the plate, at least one uncoated portion at which no positive electrode active material is applied, and at least one positive electrode tab electrically attached and coupled to the uncoated portion, and protruding upwardly from an upper portion of the electrode assembly; a negative electrode plate including a negative electrode current collector plate, a negative electrode active material layer on a surface of the plate, at least one uncoated portion in which no negative electrode active material is applied, at least one negative electrode tab electrically attached and coupled to the uncoated portion, and protruding downwardly from a lower portion of the electrode assembly; and a separator between the positive electrode plate and the negative electrode plate.

公开(公告)号：US20250062493A1

公开(公告)日：2025-02-20

申请号：US18933468

申请日：2024-10-31

Applicant: LG Energy Solution, Ltd.

Inventor： Se Hyun Yoon ,  Beomsu Kim ,  Yong Nam Kim ,  Heeyong Kim ,  Dong Hyeuk Park ,  Dong Myung Kim ,  Jae Han Jung

IPC: H01M50/46 ,  H01M4/04 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0583 ,  H01M50/463 ,  H01M50/466

Abstract: An electrode assembly manufacturing method includes the steps of: assembling an electrode stack; performing a primary heat press operation on the electrode stack while engaging the electrode stack with a gripper; and then performing a secondary heat press operation on the electrode stack while the gripper is disengaged from the electrode stack. The secondary heat press operation may include applying heat and pressure to the electrode stack for a time period from 5 seconds to 60 seconds under a temperature condition from 50° C. to 90° C. and under a pressure condition from 1 Mpa to 6 Mpa. The step of assembling the electrode stack may include alternately stacking first and second electrodes on an elongated separator sheet, and sequentially folding the separator sheet over a previously-stacked one of the electrodes before a subsequent electrode is stacked. An apparatus for performing the manufacturing method is also disclosed.

公开(公告)号：US20250062465A1

公开(公告)日：2025-02-20

申请号：US18449016

申请日：2023-08-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Diptak BHATTACHARYA ,  Anil K. SACHDEV ,  Ryan Patrick HICKEY

IPC: H01M50/209 ,  H01M10/04 ,  H01M10/653 ,  H01M10/6555 ,  H01M50/236

Abstract: A battery cell includes a battery cell stack including A anode electrodes, C cathode electrodes, and S separators, where A, C, and S are integers greater than one. A double-walled prismatic enclosure is configured to house the battery cell stack including a can body including an inner enclosure, an outer enclosure, and a gap between the inner enclosure and the outer enclosure. The battery cell stack is arranged in the inner enclosure. The outer enclosure of the can body defines a first opening and a second opening at opposite ends thereof. A first lid portion is attached to the first opening of the outer enclosure. A first bottom portion is attached to the second opening of the outer enclosure.

公开(公告)号：US20250062435A1

公开(公告)日：2025-02-20

申请号：US18720966

申请日：2022-12-12

Applicant: AMPERE S.A.S.

Inventor： Victor CHAUDOY ,  Thierry TOURRET

IPC: H01M10/613 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/625 ,  H01M10/6555 ,  H01M10/6557 ,  H01M50/204

Abstract: A module for a battery includes an enclosure, cells arranged within the enclosure, a space formed between the first main face of a cell and the second main face of an adjacent cell, the fluid occupying the space or spaces so as to cool the first main faces and/or the second main faces. The module includes flexible walls each extending facing and in contact with the first main face or the second main face of a cell and the flow rate of the fluid being controlled so as to make it possible to vary a pressure of the fluid applied to the flexible walls.

公开(公告)号：US20250062389A1

公开(公告)日：2025-02-20

申请号：US18732904

申请日：2024-06-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kyugil CHOI

IPC: H01M10/04 ,  H01M50/105 ,  H01M50/533

Abstract: A rechargeable battery includes an electrode assembly with an exterior shape having a central portion between a first round portion and a second round portion, the electrode assembly including a first electrode with a first substrate and a plurality of first tabs, the plurality of first tabs being positioned continuously without interruption over the first round portion and over a portion of the central portion in contact with the first round portion, and the first electrode including a plurality of first folding lines between the first substrate and the plurality of first tabs, respectively, a second electrode with a second substrate and a plurality of second tabs, and a separator between the first electrode and the second electrode, the first electrode, the separator, and the second electrode being wound around centers of two winding axes, and a case configured to accommodate and seal the electrode assembly.

公开(公告)号：US20250062386A1

公开(公告)日：2025-02-20

申请号：US18668005

申请日：2024-05-17

Applicant: Samsung SDI Co., Ltd.

Inventor： Min Seung KANG ,  Eun Song LEE ,  Eon Woo PARK ,  Kyung Ho KIM ,  Kyeong Yun PARK ,  Myeong Jun JO

IPC: H01M10/04 ,  H01M50/46 ,  H01M50/531

Abstract: A secondary battery includes an electrode assembly including a first separator, a negative electrode plate on the first separator, a second separator on the negative electrode plate, and a positive electrode plate on the second separator, the electrode assembly wound in a jelly-roll shape having a winding start end and a winding finish end, and having a flat portion, and curved portions respectively at one side of the flat portion and at another side of the flat portion, and a finishing tape attached to the winding finish end of the electrode assembly wound in the jelly-roll shape, wherein the positive electrode plate covers an outer surface of the electrode assembly wound in the jelly-roll shape, and has a finish end terminating on the flat portion.

公开(公告)号：US20250062384A1

公开(公告)日：2025-02-20

申请号：US18935634

申请日：2024-11-03

Applicant: Contemporary Amperex Technology (Hong Kong) Limited

Inventor： Cheng Li ,  Chong Xu ,  Jianrui Yang

IPC: H01M10/04 ,  B65H19/22 ,  B65H26/02 ,  B65H39/16 ,  H01M10/42 ,  H01M50/403 ,  H01M50/449 ,  H01M50/46

Abstract: A manufacturing method and a manufacturing equipment of an electrode assembly, a battery cell, a battery, and an electrical device. The manufacturing method of the electrode assembly specifically includes: providing roll materials including: a cathode plate roll, a separator roll, and an anode plate roll, in which, the separator roll includes a separator body and an early warning coating arranged on the separator body; the separator body has a head end and a tail end at two opposite ends along a winding direction thereof; and the early warning coating is configured to be spaced from the tail end by a first preset length; stacking and winding a cathode plate of the cathode plate roll, the separator body of the separator roll, and an anode plate of the anode plate roll; and detecting, in the winding process, whether the early warning coating is arranged on the separator body.

公开(公告)号：US20250062313A1

公开(公告)日：2025-02-20

申请号：US18807559

申请日：2024-08-16

Applicant: Solid Power Operating, Inc.

Inventor： Luke Anderson

IPC: H01M4/04 ,  H01M10/04

Abstract: Aspects involve systems and methods for producing an electrode laminate for a battery that includes a tension device to maintain tension on an electrode stack as the stack is cut into a shape. The tension device may include a first roller and a second. The upper roller may rotate in a counterclockwise direction as the lower roller rotates in a clockwise direction to pull or otherwise draw a skeleton of a cut stack through the tension device. A collection of spaced flexible and resilient flaps may be connected to the upper roller and may rotate with the upper roller. A contacting edge of each of the flaps may contact the skeleton of the stack and gently pull the skeleton through the tension device providing a relatively continuous pull on the stack as it proceeds through a cutting station.

公开(公告)号：US12226857B2

公开(公告)日：2025-02-18

申请号：US17630787

申请日：2020-05-25

Applicant: MPLUS CORP

Inventor： Jong Sung Kim ,  Kang Ho Ko ,  Sung Moon Kim

IPC: H01M50/536 ,  B23K37/04 ,  B65G35/00 ,  H01M10/04 ,  F16C29/04

Abstract: A secondary battery manufacturing process carrier having a carrier transporting track structure is provided. The secondary battery manufacturing process carrier includes: a carrier base; a carrier roller provided at a first side of the carrier base; a rolling member provided at a second side of the carrier base; and a track base on which the carrier base is movably disposed. The carrier base has a first carrier side plate and a second carrier side plate at left and right sides thereof, the first carrier side plate and the second carrier side plate include the carrier roller and the rolling member, respectively, and the carrier roller and the rolling member are configured to be rolled on the track base.

公开(公告)号：US20250055082A1

公开(公告)日：2025-02-13

申请号：US18711376

申请日：2022-11-22

Applicant: LG Energy Solution, Ltd.

Inventor： Gi Hwan Kwon

IPC: H01M50/105 ,  H01M10/04 ,  H01M50/30

Abstract: The present invention relates to a degassing device, and more particularly, to a degassing device used in a degassing process of a pouch type secondary battery.
The degassing device includes a pressing part, which is provided to face one surface of an accommodation part of pouch type secondary battery and press the accommodation part in a direction of an electrode assembly, and a fixing part which is provided to surround an edge of the accommodation part to apply a negative pressure to a corner of the accommodation part to adsorb and fix the corner.