公开(公告)号：US20240347879A1

公开(公告)日：2024-10-17

申请号：US18635506

申请日：2024-04-15

Applicant: Volkswagen Aktiengesellschaft

Inventor： Lukas KWOCZEK ,  Frederik GRAU

IPC: H01M50/54 ,  H01M10/04 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M50/486

CPC classification number: H01M50/54 ,  H01M10/049 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M50/486

Abstract: A battery cell having a layer stack including anode layers and corresponding cathode layers. The anode and cathode layers being stacked alternately one on top of the other. A separator layer is arranged between each anode and cathode layer. Anode or cathode conductor tracks are guided laterally out of the layer stack at least from some of the anode layers and/or some of the cathode layers at least on a first end face of the layer stack. The anode conductor tracks or the cathode conductor tracks being combined in a bundled manner and each contacted on the anode current collector or on the cathode current collector. The bundles of the anode or cathode conductor tracks are each passed between two folds, and insulation layers are held in position by a spring action of their particular folds against a pressure being applied indirectly by the first cover.

公开(公告)号：US12057601B2

公开(公告)日：2024-08-06

申请号：US17424972

申请日：2020-01-22

Applicant: RICOH COMPANY, LTD.

Inventor： Kohji Matsuoka ,  Ryuji Higashi ,  Masahiro Masuzawa ,  Hideo Yanagita

IPC: C09D7/40 ,  C09D7/20 ,  C09D7/61 ,  C09D187/00 ,  H01M50/486 ,  C08K3/22

CPC classification number: H01M50/486 ,  C09D7/20 ,  C09D7/61 ,  C09D7/69 ,  C09D187/005 ,  C08K2003/2227 ,  C08K2201/005

Abstract: A disclosed liquid composition includes particles; a resin; a solvent A; and a solvent B differing from the solvent A, wherein a surface tension with respect to air at 25° C. is 25 mN/m or more and less than 50 mN/m, a 90% diameter is 2.5 μm or less, and a median diameter is 1 μm or less.

公开(公告)号：US20240145871A1

公开(公告)日：2024-05-02

申请号：US18488708

申请日：2023-10-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Satomi YAMAMOTO ,  Masayoshi HAGA ,  Masashi CHIHARA ,  Takenori IKEDA ,  Nana KURASHITA

IPC: H01M50/477 ,  H01M50/103 ,  H01M50/15 ,  H01M50/486

CPC classification number: H01M50/477 ,  H01M50/103 ,  H01M50/15 ,  H01M50/486

Abstract: A power storage cell includes: an electrode assembly; and a cell case that accommodates the electrode assembly. The cell case has a case main body provided with an opening that opens upward, a lid connected to the case main body, and an elastic member disposed between the case main body and the electrode assembly. The elastic member has a center-facing portion facing a central portion of the electrode assembly, and the center-facing portion has a shape curved to protrude in a direction away from the electrode assembly.

公开(公告)号：US20240128566A1

公开(公告)日：2024-04-18

申请号：US18275098

申请日：2022-01-31

Applicant: IBIDEN CO., LTD.

Inventor： Keisuke TANGE

IPC: H01M50/213 ,  H01M10/613 ,  H01M10/6235 ,  H01M10/653 ,  H01M10/6555 ,  H01M50/474 ,  H01M50/477 ,  H01M50/486

CPC classification number: H01M50/213 ,  H01M10/613 ,  H01M10/6235 ,  H01M10/653 ,  H01M10/6555 ,  H01M50/474 ,  H01M50/477 ,  H01M50/486 ,  H01M10/6562

Abstract: An assembled battery in which a plurality of battery cells is connected serially or in parallel, the battery cells each having an electrode surface having an electrode and a peripheral surface orthogonal to the electrode surface and being disposed such that the peripheral surfaces face each other. The assembled battery contains the battery cells, a flameproof material covering the peripheral surface of the battery cells, and a heat dissipation member covering the peripheral surface of the battery cells which is covered with the flameproof material.

公开(公告)号：US20240030566A1

公开(公告)日：2024-01-25

申请号：US18472253

申请日：2023-09-22

Applicant: EVE POWER CO., LTD.

Inventor： LIYANG HUANG ,  YANG XIA ,  YU WANG ,  CHENG CHENG

IPC: H01M50/536 ,  H01M50/103 ,  H01M50/54 ,  H01M50/682 ,  H01M50/483 ,  H01M50/486 ,  H01M50/15

CPC classification number: H01M50/536 ,  H01M50/103 ,  H01M50/54 ,  H01M50/682 ,  H01M50/483 ,  H01M50/486 ,  H01M50/15

Abstract: A laminated core includes a case, a laminated core, and a cap assembly. The laminated core includes multiple electrode clusters. Each electrode cluster includes multiple laminated electrodes and multiple tabs. Each tab extends out of a corresponding one of the electrodes. The multiple tabs of each electrode clusters form a tab bundle, and the tab bundle is connected to one pin. The cap assembly includes a connection portion and a pole, the pin is slidably connected to the connection portion, and electrically connected to the pole through the connection portion.

公开(公告)号：US20240006721A1

公开(公告)日：2024-01-04

申请号：US18039615

申请日：2022-09-28

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Min-Ki JO ,  Bo-Hyun KANG ,  Do-Gyun KIM ,  Su-Ji CHOI ,  Kwang-Su HWANGBO

IPC: H01M50/474 ,  H01M10/04 ,  H01M50/107 ,  H01M50/179 ,  H01M50/477 ,  H01M50/486 ,  H01M50/342

CPC classification number: H01M50/474 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/179 ,  H01M50/477 ,  H01M50/486 ,  H01M50/3425 ,  H01M10/049 ,  H01M10/0422 ,  H01M2220/20

Abstract: A battery cell includes an electrode assembly having a first electrode current collector having a sheet shape, a second electrode current collector having a sheet shape, and a separator located between the first electrode current collector and the second electrode current collector, the first electrode current collector, the second electrode current collector, and the separator being wound in a winding direction; a battery can accommodating the electrode assembly, the battery can having an open portion and a partially closed portion, the partially closed portion being electrically connected to the second electrode current collector; a current collection plate electrically connected to the first electrode current collector; a cell terminal connected to the current collection plate through a perforated hole of the partially closed portion of the battery can; and an insulator located between the battery can and the current collection plate. A method of manufacturing the battery cell is also provided.

公开(公告)号：US20230361431A1

公开(公告)日：2023-11-09

申请号：US18023514

申请日：2021-08-24

Applicant: Panasonic Intellectual Property Management Co., Ltd

Inventor： Tetsuyuki Okano

IPC: H01M50/486 ,  H01M10/052 ,  H01M50/491 ,  H01M50/46

CPC classification number: H01M50/491 ,  H01M10/052 ,  H01M50/46 ,  H01M50/486

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and a porous separator disposed between the positive electrode and the negative electrode, a spacer disposed between the separator and at least one of the positive electrode and the negative electrode, and a non-aqueous electrolyte having lithium ion conductivity. In the negative electrode, the lithium metal deposits during charging, and the lithium metal dissolves during discharging. In a region where the negative electrode and the positive electrode face each other, a first region (R1) facing the spacer and a second region (R2) not facing the spacer are included. The spacer is nonporous or porous, and the spacer has a height (t) of 20 µm or more. When the spacer is porous, the spacer has a porosity Psp, the porosity Psp of the spacer being equal to or less than a porosity Pse the separator.

公开(公告)号：US20240332613A1

公开(公告)日：2024-10-03

申请号：US18580879

申请日：2022-07-12

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Liwei Lin ,  Peisheng He ,  Yande Peng ,  Yu Long

IPC: H01M10/0565 ,  H01M4/02 ,  H01M4/04 ,  H01M4/485 ,  H01M4/58 ,  H01M50/474 ,  H01M50/486

CPC classification number: H01M10/0565 ,  H01M4/0404 ,  H01M4/0414 ,  H01M4/485 ,  H01M4/5815 ,  H01M50/474 ,  H01M50/486 ,  H01M2004/027 ,  H01M2004/028

Abstract: A conformable battery including a first polymer substrate having a cathode, a second polymer substrate having an anode facing the cathode, and a hydrogel electrolyte in between the anode and cathode. A method of manufacturing a stretchable battery includes forming a cathode current collector on a first polymer substrate, depositing a cathode on the cathode current collector, forming an anode current collector on a second polymer substrate, depositing an anode on the anode current collector, depositing a hydrogel electrolyte on one of either the cathode or the anode, and joining the first polymer substrate and the second polymer substrate to form the battery.

公开(公告)号：US20240250312A1

公开(公告)日：2024-07-25

申请号：US18482514

申请日：2023-10-06

Applicant: The Furukawa Battery Co., Ltd. ,  Furukawa Electric Co., Ltd.

Inventor： Ayano KOIDE

IPC: H01M10/18 ,  H01M4/68 ,  H01M10/12 ,  H01M50/477 ,  H01M50/486

CPC classification number: H01M10/18 ,  H01M4/68 ,  H01M4/685 ,  H01M10/12 ,  H01M50/477 ,  H01M50/486

Abstract: In a bipolar storage battery where a positive electrode current collector plate and a negative electrode current collector plate are electrically connected in a through-hole of a substrate and a plurality of cell members are electrically connected in series, even when an electrolytic solution moves between the current collector plate and the substrate, the electrolytic solution is prevented from easily reaching the through-hole of the substrate, preventing a short circuit. At least one of a bottom surface of a recess that is a surface of a main substrate close to a positive electrode or a bottom surface of a recess that is a surface of the main substrate close to a negative electrode, the main substrate being a substrate arranged between cell members, has a ten-point average roughness (RzJIS) of between 30 μm and 104 μm, inclusive, and a maximum height roughness (Rz) of 123 μm or less.

公开(公告)号：US20240194985A1

公开(公告)日：2024-06-13

申请号：US18583402

申请日：2024-02-21

Applicant: LG Energy Solution, Ltd.

Inventor： Gyung Soo Kang ,  Sang Myeon Lee ,  Yong Su Choi ,  Hyung Kyun Yu

IPC: H01M50/136 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/474 ,  H01M50/483 ,  H01M50/486

CPC classification number: H01M50/136 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/474 ,  H01M50/483 ,  H01M50/486

Abstract: A secondary battery may include: an electrode assembly in which an electrode and a separator are alternately stacked; a plurality of pouches that surrounds the electrode assembly and seals the electrode assembly; and a spring part that is coupled to the outermost pouch of the plurality of pouches and provides a degree of structural rigidity of the outermost pouch. Additionally, a secondary battery may include: an electrode assembly in which an electrode and a separator are alternately stacked; a plurality of pouches that surrounds the electrode assembly and seals the electrode assembly; an open portion formed at one side of the outermost pouch of the plurality of pouches and passing through a portion of the one side; and a spring part that is coupled to both ends of the open portion and provides a degree of structural rigidity of the outermost pouch.