公开(公告)号：US20230318158A1

公开(公告)日：2023-10-05

申请号：US18179390

申请日：2023-03-07

Applicant: HONDA MOTOR CO., LTD.

Inventor： Toshiyuki ARIGA

IPC: H01M50/586 ,  H01M50/107 ,  H01M10/0587 ,  H01M50/152 ,  H01M50/593 ,  H01M50/531 ,  H01M50/193 ,  H01M50/186 ,  H01M50/213

CPC classification number: H01M50/586 ,  H01M50/107 ,  H01M10/0587 ,  H01M50/152 ,  H01M50/593 ,  H01M50/531 ,  H01M50/193 ,  H01M50/186 ,  H01M50/213

Abstract: Provided is a cylindrical battery including: a shaft core; a set of wound electrodes including an electrode stack wound on the shaft core; an exterior member surrounding the set of wound electrodes; a cap disposed at one axial end of the shaft core and electrically connected to one of the positive and negative electrodes; and an insulating member disposed between the exterior member and the cap, the cap having an outer diameter that is larger than the inner diameter of the exterior member and smaller than the outer diameter of the exterior member, the insulating member having an outer diameter larger than the outer diameter of the cap, the insulating member having a protrusion that is located more inside in the radial direction of the set of wound electrodes than the inner surface of the exterior member and protrudes toward the set of wound electrodes.

公开(公告)号：US20230307802A1

公开(公告)日：2023-09-28

申请号：US18021397

申请日：2021-08-25

Applicant: VARTA Microbattery GmbH

Inventor： Stefan Stock ,  Martin Fuerst ,  David Ensling ,  Martin Elmer

IPC: H01M50/578 ,  H01M4/75 ,  H01M50/107 ,  H01M50/538 ,  H01M50/56 ,  H01M50/536 ,  H01M50/152 ,  H01M50/474 ,  H01M50/342

CPC classification number: H01M50/578 ,  H01M4/75 ,  H01M50/107 ,  H01M50/538 ,  H01M50/56 ,  H01M50/536 ,  H01M50/152 ,  H01M50/474 ,  H01M50/3425

Abstract: An energy storage cell includes a housing comprising a metallic, tubular housing with a circular opening. The energy storage cell further includes an electrode-separator assembly winding having two terminal end faces and a wound jacket, the electrode-separator assembly comprising an anode, a cathode, and a separator. The energy storage cell additionally includes an at least partly metallic contact element in direct contact with and connected to current collector by welding. The contact element comprises a circular edge and closes the terminal circular opening of the tubular housing portion in a gas- and liquid-tight manner. The contact element is or comprises a metallic membrane electrically connected to a current collector. The metallic membrane is configured to, in response to a pressure in the housing exceeding a threshold, bend such that electrical contact between the contact element and the current collector is lost.

公开(公告)号：US20230299413A1

公开(公告)日：2023-09-21

申请号：US18023176

申请日：2021-11-03

Applicant: LG Energy Solution, Ltd.

Inventor： Wook Hee Jang ,  Do Gyun Kim ,  Jin Uk Do ,  Chan Bae Kim

IPC: H01M50/342 ,  H01M50/107 ,  H01M50/152 ,  H01M10/0525

CPC classification number: H01M50/3425 ,  H01M10/0525 ,  H01M50/107 ,  H01M50/152

Abstract: A secondary battery according to an embodiment of the present disclosure includes an electrode assembly, a battery case that houses the electrode assembly and has an opened upper party, and a cap assembly that is coupled to the opened upper part of the battery case.The cap assembly comprises a safety vent formed with a notch portion, and a gap formed by the notch portion is closed.

公开(公告)号：US11695179B2

公开(公告)日：2023-07-04

申请号：US16462677

申请日：2017-09-28

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sang Hoon Bae

IPC: H01M50/152 ,  H01M50/107 ,  H01M50/559 ,  H01M50/179 ,  H01M50/159 ,  H01M50/536 ,  H01M50/548

CPC classification number: H01M50/152 ,  H01M50/107 ,  H01M50/159 ,  H01M50/179 ,  H01M50/536 ,  H01M50/548 ,  H01M50/559

Abstract: The present invention relates to a secondary battery in which a conductive cover, which is electrically connected to a case and has a flat part, is formed at an upper end of the case so as to facilitate welding of an electrode tab and enable space utilization to be maximized. According to one embodiment, disclosed is a secondary battery comprising: an electrode assembly; a case for accommodating the electrode assembly; a cap assembly which is coupled to an upper part of the case so as to seal the case, and has a terminal part; and a conductive cover which is coupled to an upper part of the case and fixed to a lateral plate of the case.

公开(公告)号：US20230207984A1

公开(公告)日：2023-06-29

申请号：US18113074

申请日：2023-02-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M50/536 ,  H01M50/342 ,  H01M50/169 ,  H01M50/107 ,  H01M50/213 ,  H01M10/058 ,  H01M50/152

CPC classification number: H01M50/536 ,  H01M50/3425 ,  H01M50/169 ,  H01M50/107 ,  H01M50/213 ,  H01M10/058 ,  H01M50/152

Abstract: A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing, where a first tab is disposed on the electrode assembly at an end oriented toward the opening; and an end cap, configured to fit and cover the opening. The end cap may include a cap body and a first protruding structure connected to the cap body. A rupturable structure may be disposed on the cap body. The end cap may rupture along the rupturable structure when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The first protruding structure may protrude from the cap body toward the electrode assembly, and support the first tab so that an avoidance clearance configured to avoid the rupturable structure is formed between the first tab and the cap body.

公开(公告)号：US20240356150A1

公开(公告)日：2024-10-24

申请号：US18442877

申请日：2024-02-15

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Woo Hyuk CHOI ,  Joung Ku KIM ,  Jun Ho YANG ,  Jun Hwan KWON ,  Hyun Suk PARK ,  Tae Yoon LEE

IPC: H01M50/342 ,  H01M50/107 ,  H01M50/152

CPC classification number: H01M50/3425 ,  H01M50/107 ,  H01M50/152 ,  H01M2200/20

Abstract: Embodiments of the present disclosure relate to a cylindrical secondary battery that facilitates gas discharge by causing a bent shape of a cap plate to be deformed and broken if a temperature of a cell increases, such as due to an event. In one or more embodiments, a secondary battery includes: an electrode assembly; a case including a top end open to accommodate the electrode assembly; and a cap plate coupled to the top end of the case, and the cap plate includes a central region, an edge region, a bent portion between the central region and the edge region, and a vent portion including a notch configured to be broken by a certain pressure.

公开(公告)号：US12125986B2

公开(公告)日：2024-10-22

申请号：US18131677

申请日：2023-04-06

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Su-Ji Choi ,  Kwang-Su Hwangbo ,  Do-Gyun Kim ,  Geon-Woo Min ,  Min-Ki Jo ,  Jae-Won Lim ,  Hak-Kyun Kim ,  Je-Jun Lee ,  Ji-Min Jung ,  Hae-Jin Lim ,  Jae-Woong Kim ,  Jong-Sik Park ,  Yu-Sung Choe ,  Byoung-Gu Lee ,  Duk-Hyun Ryu ,  Kwan-Hee Lee ,  Jae-Eun Lee ,  Bo-Hyun Kang ,  Jin-Hak Kong ,  Soon-O Lee ,  Kyu-Hyun Choi ,  Pil-Kyu Park

IPC: H01M10/0587 ,  H01M4/64 ,  H01M4/70 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/183 ,  H01M50/213 ,  H01M50/242 ,  H01M50/507 ,  H01M50/509 ,  H01M50/531 ,  H01M50/533 ,  H01M50/536 ,  H01M50/559 ,  H01M50/567

CPC classification number: H01M10/0587 ,  H01M4/64 ,  H01M4/70 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/183 ,  H01M50/213 ,  H01M50/242 ,  H01M50/507 ,  H01M50/509 ,  H01M50/531 ,  H01M50/533 ,  H01M50/536 ,  H01M50/559 ,  H01M50/567 ,  H01M2220/20

Abstract: A battery includes an electrode assembly including a first electrode, second electrode, and a separator between the first electrode and the second electrode, the first electrode including a first region coated with an active material and a second region at a first side and adjacent to the first region, the second region being exposed beyond the separator, and at least part of the second region is an electrode tab; a housing including a first end with a first opening, the housing accommodating the electrode assembly; a first current collector including an edge portion on the electrode assembly, a second region coupling portion extending from the edge portion and coupled with the second region, and a terminal coupling portion spaced apart from the second region coupling portion; and a terminal coupled with the terminal coupling portion.

公开(公告)号：US12113235B2

公开(公告)日：2024-10-08

申请号：US17613297

申请日：2020-07-17

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Han A Noh

IPC: H01M50/342 ,  H01M10/04 ,  H01M50/152 ,  H01M50/169 ,  H01M50/583 ,  H01M50/636

CPC classification number: H01M50/3425 ,  H01M10/0422 ,  H01M50/152 ,  H01M50/169 ,  H01M50/583 ,  H01M50/636

Abstract: A cylindrical battery includes a metal can, an electrode assembly mounted in the metal can, and a cap assembly located at an upper end of the metal can, the cap assembly including a top cap, a safety vent, and a current shut-off member. A hole mark is formed on the safety vent.

公开(公告)号：US20240322215A1

公开(公告)日：2024-09-26

申请号：US18680144

申请日：2024-05-31

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jae-Eun LEE ,  Jong-Sik PARK ,  Hak-Kyun KIM ,  Je-Jun LEE ,  Jae-Won LIM ,  Yu-Sung CHOE ,  Byoung-Gu LEE ,  Duk-Hyun RYU ,  Kwan-Hee LEE

IPC: H01M10/04 ,  B60L50/64 ,  H01M50/107 ,  H01M50/152 ,  H01M50/167 ,  H01M50/186 ,  H01M50/213 ,  H01M50/567

CPC classification number: H01M10/0431 ,  B60L50/64 ,  H01M50/107 ,  H01M50/152 ,  H01M50/167 ,  H01M50/186 ,  H01M50/213 ,  H01M50/567 ,  H01M2220/20

Abstract: An electrode assembly, a battery, a battery pack and a vehicle including the same are provided. In the electrode assembly, the uncoated portion of an electrode includes a segment region divided into a plurality of segments, and the segment region includes a plurality of segment groups separated by a group separation pitch along a winding direction. One end of the electrode assembly includes a plurality of segment alignments. In winding turns corresponding to the plurality of segment alignments, group separation pitches of segment groups disposed in a same winding turn are substantially identical, and separation pitches of the segment groups is greater in a winding turn of a region adjacent to the outer circumference of the electrode assembly than in a winding turn of a region adjacent to the core of the electrode assembly.

公开(公告)号：US20240304903A1

公开(公告)日：2024-09-12

申请号：US18003335

申请日：2022-10-27

Applicant: EVE POWER CO., LTD.

Inventor： Shangyi LI ,  Liming HUANG ,  Liangliang YUE

IPC: H01M50/107 ,  H01M50/148 ,  H01M50/152 ,  H01M50/167 ,  H01M50/186

CPC classification number: H01M50/107 ,  H01M50/152 ,  H01M50/154 ,  H01M50/167 ,  H01M50/186

Abstract: A cylindrical battery and a battery pack are provided in embodiments of the application, which relates to the field of battery technology. The cylindrical battery includes a housing, a first end cover, a second end cover, a battery cell, and a pole post. The battery cell is accommodated in the housing, and the first end cover and the second end cover seal at ends of the housing, respectively. The pole post is connected with the battery cell and extended through the first end cover. The pole post is cylindrical, a diameter of the pole post is Φ1, and a diameter of the first end cover is Φ2, wherein Φ1/Φ2≤34%, and Φ1≥12 mm.