公开(公告)号：US12132175B2

公开(公告)日：2024-10-29

申请号：US18086485

申请日：2022-12-21

Applicant: LG ENERGY SOLUTION, LTD.

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

IPC: H01M50/536 ,  H01M4/64 ,  H01M4/70 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/183 ,  H01M50/213 ,  H01M50/242 ,  H01M50/507 ,  H01M50/509 ,  H01M50/531 ,  H01M50/533 ,  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: An electrode assembly includes a first electrode; a second electrode; and a separator, the first electrode, the second electrode, and the separator wound about an axis defining a core and an outer circumference of the electrode assembly. The first electrode has a pair of first sides and a pair of second sides, a first portion extending between the pair of first sides, and a second portion extending between the pair of first sides, the first portion being coated with an active material, and at least a part of the second portion includes an electrode tab. The second portion includes a first part adjacent to the core of the electrode assembly, a second part adjacent to the outer circumference of the electrode assembly, and a third part between the first part and the second part. The first or second part has a smaller height than the third part.

公开(公告)号：US12125992B1

公开(公告)日：2024-10-22

申请号：US18775030

申请日：2024-07-17

Applicant: Hamedata Technology Co., Limited

Inventor： Changjun Yang ,  Jian Zhao ,  Pengfei Xiao ,  Wei Zhou ,  Guohao Xu ,  Qiang Hou ,  Hong Xiao

IPC: H01M10/42 ,  H01M10/052 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/119 ,  H01M50/184 ,  H01M50/186 ,  H01M50/533 ,  H01M50/534 ,  H01M50/536 ,  H01M50/586 ,  H01M50/59

CPC classification number: H01M10/4257 ,  H01M10/052 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/119 ,  H01M50/184 ,  H01M50/186 ,  H01M50/533 ,  H01M50/534 ,  H01M50/536 ,  H01M50/586 ,  H01M50/59

Abstract: The present application relates to a 1.5V lithium battery. The lithium battery includes a circuit assembly, a plastic frame, a wound battery core assembly, a first metal housing, a second metal housing, a first insulating seal and an insulating sheath. The wound battery core assembly is arranged in the second metal housing, the first metal housing and the second metal housing dock with each other and fixed by circumferential welding, and the circuit assembly includes a PCB, a low-voltage positive cap, a high-voltage positive connecting piece and a negative elastic piece. In the present application, the circuit assembly can stably output a low voltage of 1.5V.

公开(公告)号：US20240347877A1

公开(公告)日：2024-10-17

申请号：US18485648

申请日：2023-10-12

Applicant: Samsung SDI Co., Ltd.

Inventor： Kwang Soo BAE ,  Jun Sun YONG ,  Jun Hyung LEE ,  Jung Soo KIM

IPC: H01M50/536 ,  H01M10/0583 ,  H01M50/103 ,  H01M50/548 ,  H01M50/566

CPC classification number: H01M50/536 ,  H01M10/0583 ,  H01M50/103 ,  H01M50/548 ,  H01M50/566

Abstract: Disclosed is a secondary battery capable of a sufficient pressing force during welding between the terminal and the current collector plate to induce a strong bonding force, the secondary battery including an electrode assembly having first and second electrode tabs exposed on respective sides, a first current collection part electrically coupled to the first electrode tab, and including an edge part welded to the first electrode tab, and a central part, a case accommodating the electrode assembly and the first current collection part, a first cap plate sealing a side opening of the case, a first terminal mechanically and electrically coupled to the first current collection part, and exposed to an exterior of the first cap plate, and a support between the central part of the first current collection part and the electrode assembly, wherein the central part protrudes further toward the first cap plate than the edge part.

公开(公告)号：US20240313364A1

公开(公告)日：2024-09-19

申请号：US18271796

申请日：2022-10-28

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Byoung-Gu LEE ,  Duk-Hyun RYU ,  Kwan-Hee LEE

IPC: H01M50/533 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/536 ,  H01M50/545 ,  H01M50/559

CPC classification number: H01M50/533 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/536 ,  H01M50/545 ,  H01M50/559 ,  H01M2220/20

Abstract: A cylindrical secondary battery includes an electrode assembly having a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode, the positive electrode, the negative electrode, and the separator being wound in a winding direction, the positive electrode including a positive electrode uncoated portion exposed beyond the separator, the negative electrode including a negative electrode uncoated portion exposed beyond the separator, a positive electrode current collector plate coupled to the positive electrode uncoated portion by one or more positive electrode welding portions, and a negative electrode current collector plate coupled to the negative electrode uncoated portion by one or more negative electrode welding portions. A coupling area between the positive electrode uncoated portion and the positive electrode current collector plate is smaller than a coupling area between the negative electrode uncoated portion and the negative electrode current collector plate.

公开(公告)号：US20240310313A1

公开(公告)日：2024-09-19

申请号：US18276611

申请日：2022-06-09

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jung Hoon LEE ,  Su Taek JUNG ,  Seok Jin KIM ,  Ji Hoon LEE ,  Sang Hyun KOO ,  Min Wook KIM

IPC: G01N27/04 ,  B23K31/12 ,  H01M10/42 ,  H01M50/536

CPC classification number: G01N27/041 ,  B23K31/125 ,  H01M10/4285 ,  H01M50/536

Abstract: A device for inspecting a welded state of a plurality of welded portions coupling a non-coating portion of an electrode to an electrode tab includes a resistance measurer having a plurality of resistance measurement probes which respectively measure resistance values of the plurality of welded portions; and a resistance inspector which compares each of the resistance values of the plurality of welded portions, with a critical resistance value. When the resistance value of at least one welded portion among the plurality of welded portions exceeds the critical resistance value, the at least one welded portion is determined as having a weak welding. The plurality of resistance measurement probes respectively measure the resistance values of the plurality of welded portions while being respectively in contact with a non-welding surface disposed between the plurality of welded portions and non-welding surfaces outside outermost welded portions of the plurality of welded portions.

公开(公告)号：US20240304958A1

公开(公告)日：2024-09-12

申请号：US18573563

申请日：2022-06-10

Applicant: Panasonic Energy Co., Ltd.

Inventor： Suguru Matsumura ,  Oose Okutani

IPC: H01M50/538 ,  H01M10/0587 ,  H01M50/536

CPC classification number: H01M50/538 ,  H01M10/0587 ,  H01M50/536

Abstract: A cylindrical battery comprises: a wound electrode body having a hollow section extending in the axial direction; and collector plates, each collector plate including a protrusion having an apex accommodated in the hollow section, and a groove part provided integrally with the protrusion on the outside in the radial direction of the protrusion so as to define a groove, the collector plates being more toward the outside in the axial direction than the electrode body. In a core body of at least one of a positive and a negative electrode, a core body exposed portion without a mixture layer is joined to a core body Joining portion (an upper surface of a ridge part, and a lower surface of a ridge part of the collector plate. The core body joining portion includes an opposing part that radially opposes an integral structure comprising the protrusion and the groove part.

公开(公告)号：US20240304910A1

公开(公告)日：2024-09-12

申请号：US18532979

申请日：2023-12-07

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kwan Sic CHUN

IPC: H01M50/169 ,  H01M50/107 ,  H01M50/152 ,  H01M50/167 ,  H01M50/342 ,  H01M50/536 ,  H01M50/567 ,  H01M50/583

CPC classification number: H01M50/169 ,  H01M50/107 ,  H01M50/152 ,  H01M50/167 ,  H01M50/3425 ,  H01M50/536 ,  H01M50/567 ,  H01M50/583

Abstract: A secondary battery including an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly; a rivet terminal that penetrates the case and is electrically connected to the first electrode plate of the electrode assembly; and a vent plate that seals the case and is directly electrically connected to the second electrode plate of the electrode assembly.

公开(公告)号：US12087971B2

公开(公告)日：2024-09-10

申请号：US17334957

申请日：2021-05-31

Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Inventor： Longfei Du ,  Hongbin Zheng ,  Xuewen Wei ,  Zongqiang Wang

IPC: H01M50/533 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/536 ,  H01M50/538

CPC classification number: H01M50/533 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/536 ,  H01M50/538

Abstract: The present disclosure relates to a power supply assembly and a method for manufacturing the same. The power supply assembly includes a negative electrode sheet, a separator, and a positive electrode sheet. The negative electrode sheet includes a negative tab, and the positive electrode sheet includes a positive tab, a positive electrode material covering a first foil, a first recess and a second recess. The first recess is formed by removing a positive electrode material covering a first region of the first foil and configured for receiving the positive tab, and a size of the first recess is larger than a size of the positive tab. The second recess is formed by removing a positive electrode material covering a second region of the first foil and configured for receiving the negative tab, and a size of the second recess is larger than a size of the negative tab.

公开(公告)号：US20240297420A1

公开(公告)日：2024-09-05

申请号：US18289911

申请日：2022-06-02

Applicant: Komatsu Ltd.

Inventor： Kenichi Noto ,  Ryo Kawai ,  Shimon Morikawa ,  Ryota Kasama ,  Hiroyuki Mizukami ,  Yasuhiko Matsuki

IPC: H01M50/536 ,  H01G11/06 ,  H01G11/86 ,  H01M10/0525 ,  H01M10/0585

CPC classification number: H01M50/536 ,  H01G11/06 ,  H01G11/86 ,  H01M10/0525 ,  H01M10/0585

Abstract: A bonding method includes a step of alternately stacking an electrode foil and a separator and forming a protruding portion extending to extend the stacked electrode foil, and a step of wobbling welding the protruding portion and a collector plate by irradiating an outer surface of the collector plate with laser light in a state in which an inner surface of the collector plate is in contact with the protruding portion.

公开(公告)号：US20240291040A1

公开(公告)日：2024-08-29

申请号：US18623461

申请日：2024-04-01

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Peipei GUO ,  Yi ZHAO ,  Ping HE ,  Hongxin FANG ,  Wenqiang CHENG

IPC: H01M10/0585 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/528 ,  H01M50/536 ,  H01M50/538

CPC classification number: H01M10/0585 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/528 ,  H01M50/536 ,  H01M50/538 ,  H01M2220/20

Abstract: A secondary battery cell includes an anode electrode plate, an anode electrode tab, a cathode electrode plate, a cathode electrode tab, and a separator. A winding formation system of the secondary battery cell includes a working platform, a winding mechanism, an anode electrode plate unwinding roller, an anode electrode plate cleaning mechanism, an anode electrode plate die-cutting mechanism, an anode electrode tab supply mechanism, an anode electrode tab connection mechanism, an anode electrode plate convey mechanism, a cathode electrode plate unwinding roller, a cathode electrode plate cleaning mechanism, a cathode electrode plate die-cutting mechanism, a cathode electrode tab supply mechanism a cathode electrode tab connection mechanism, a cathode electrode plate convey mechanism, a first separator unwinding roller, a second separator unwinding roller, a first separator convey mechanism, and a second separator convey mechanism.