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1. 发明公开

EP3979356A1 SECONDARY BATTERY 审中-实审
公开(公告)号：EP3979356A1
公开(公告)日：2022-04-06
申请号：EP20818711.2
申请日：2020-05-07
申请人： Samsung SDI Co., Ltd.
发明人： BYUN, In Seop , KIM, Cheon Soo , LEE, Jin Uk , LEE, Chong Hoon , KO, Young Dae
IPC分类号： H01M2/26 , H01M10/0587 , H01M10/04 , H01M4/66 , H01M2/30 , H01M2/02
摘要： An embodiment of the present invention relates to a secondary battery, and the object of the present invention is to provide a secondary battery capable of improving the flatness of an electrode assembly and reducing internal resistance when the electrode assembly is rolled. To this end, disclosed is a secondary battery comprising: an electrode assembly rolled including a positive electrode plate, a negative electrode plate, and a separator, wherein the positive electrode plate has positive electrode uncoated portions provided at a rolled central portion thereof and a rolled end portion thereof, and the negative electrode plate has negative electrode uncoated portions provided at a rolled central portion thereof and a rolled end portion thereof; a first positive electrode foil tab and a second positive electrode foil tab respectively connected to the positive electrode uncoated portions; a first negative electrode foil tab and a second negative electrode foil tab respectively connected to the negative electrode uncoated portions; a positive electrode current collection tab connected together to the first positive electrode foil tab and the second positive electrode foil tab; a negative electrode current collection tab connected together to the first negative electrode foil tab and the second negative electrode foil tab; and a pouch-type case for accommodating the electrode assembly.

2. 发明公开

EP3961744A1 SEALING STRUCTURE FOR BATTERY 审中-实审转让
公开(公告)号：EP3961744A1
公开(公告)日：2022-03-02
申请号：EP20805615.0
申请日：2020-04-30
申请人： DAIKIN INDUSTRIES, LTD.
发明人： LIU Jihong , AOYAMA Takahisa , TSUDA Hayato , SUKEGAWA Masamichi
IPC分类号： H01M2/02 , H01M2/06 , H01M2/08 , H01M2/30
摘要： A sealing structure (10a) for a lithium ion battery (10) includes a metal lid (2), a polymer molding (3), and an electrode (11). A back surface (2c) of the metal lid (2) has an annular first projection (51) around a through hole (2a) of the metal lid (2). A front surface (11c) of a plate portion (11b) of the electrode (11) has an annular second projection (52) around the through hole (2a). Values α and β expressed by the following formula (1) satisfy a predetermined relation, where h1 and h2 respectively represent the heights of the first and second projections (51) and (52), d represents the distance between the first and second projections (51) and (52), and H represents the thickness of the base portion (3b) of the polymer molding (3). α = h 1 + h 2 / H , β =d/H

3. 发明公开

EP3951912A1 STRUCTURE FOR CONNECTING LEAD WIRE 有权转让
公开(公告)号：EP3951912A1
公开(公告)日：2022-02-09
申请号：EP20777033.0
申请日：2020-03-19
申请人： SANYO Electric Co., Ltd.
发明人： YAMANE Takuya , YANASE Dai
IPC分类号： H01M2/10 , H01M2/30 , H01R4/02 , H01R4/64
摘要： A connection portion (2x) of a lead wire (2) is close to a surface of a metal plate (1), held at an accurate position, and held while preventing the wire from being movable, so that the connection portion (2x) is electrically connected to the metal plate (1) reliably and stably. The lead wire (2) connected to the metal plate (1) is held so as not to be disconnected due to vibration or impact. A connection structure of the lead wire (2) includes the metal plate (1), the lead wire (2) connected to the surface of the metal plate (1), and the pair of holding protrusions (3). The holding protrusions protrude from the surface of a lead plate (lA), and sandwich at least two parts of the lead wire (2) to dispose the lead wire (2) at a fixed position. Each of the holding protrusions (3) has a holding gap (3a) sandwiching and holding the press-fitted lead wire (2). A connection space (4) of the lead wire (2) and the metal plate (1) is provided between the holding protrusions (3). The lead wire (2) is held on the surface of the metal plate (1) with the holding protrusions (3). The lead wire (2) is connected to the surface of the metal plate (1) in the connection space (4).

4. 发明公开

EP3940837A1 LAMINATED BATTERY 审中-公开
公开(公告)号：EP3940837A1
公开(公告)日：2022-01-19
申请号：EP19919244.4
申请日：2019-11-13
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： HONDA Kazuyoshi , KAWASE Akira , KOGA Eiichi , NISHIDA Kouji , MASUDA Noboru , YAMASAKI Takeshi
IPC分类号： H01M10/052 , H01M10/0585 , H01M2/26 , H01M2/30
摘要： A laminated battery includes a plurality of battery cells which are laminated and a current collecting lead. Each of the plurality of battery cells includes a positive electrode current collector, a solid electrolyte layer, a positive electrode active material layer disposed between the positive electrode current collector and the solid electrolyte layer, a negative electrode current collector, and a negative electrode active material disposed between the positive electrode active material and the negative electrode current collector. The battery cells include first and second battery cells adjacent to each other. At least the second battery cell has a side surface inclined with respect to a laminating direction of the battery cells. The first battery cell has a surface facing the second battery cell and including an exposed surface not in contact with the second battery cell. At least part of the exposed surface overlaps at least part of the side surface of the second battery cell viewed from the laminating direction. The current collecting lead is connected to the exposed surface.

5. 发明公开

EP3930077A1 BATTERY STATE DETECTION DEVICE 审中-实审
公开(公告)号：EP3930077A1
公开(公告)日：2021-12-29
申请号：EP20786907.4
申请日：2020-04-07
申请人： Furukawa Electric Co., Ltd. , Furukawa Automotive Systems Inc. , TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： IWASAKI Jun , TAKAHASHI Ryosuke , KATO Kazuya , SAJI Keita , KAKOI Ryusuke
IPC分类号： H01M10/48 , H01M2/20 , H01M2/30 , H01R11/12 , G01R31/364
摘要： To improve the durability of a case fixed to a battery post terminal. Provided is a battery state detection device (1) including a battery post terminal (10), a case (70) accommodating a circuit board including a current sensing circuit that senses a current by being electrically connected to the battery post terminal (10), and a harness connection part (80) provided on the case (70), the harness connection part (80) being capable of having a harness connected thereto, in which the battery post terminal (10) includes a holding part (11) held on one of faces of the case (70), and an insert part (12) provided in a region from the holding part (11) along a face adjacent to the one of the faces of the case (70), the battery post terminal (10) contacts the case (70) via at least two faces, the two faces including the one of the faces and the face adjacent to the one of the faces, and the case (70) includes a fitting part (74), the fitting part (74) being adapted to fit around the insert part (12) by accommodating the insert part (12).

6. 发明公开

EP3920267A1 BATTERY MODULE AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：EP3920267A1
公开(公告)日：2021-12-08
申请号：EP20774165.3
申请日：2020-03-13
申请人： LG ENERGY SOLUTION, LTD.
发明人： CHI, Ho June , MOON, Jeong Oh , KIM, Kyung Mo , JIN, Heejun , PARK, Jin Yong
IPC分类号： H01M2/20 , H01M2/30 , H01M2/26
摘要： The present invention relates to a battery module including a busbar structure for adhesion with an electrode lead. The battery module comprises: a battery cell stack in which a plurality of battery cells are stacked, electrode leads formed to protrude from the battery cell stack, a busbar electrically connected to the electrode leads, and a busbar frame on which the busbar is mounted, wherein the busbar is formed of a tongs part and a fixing part for connecting and fixing the tongs part, and the electrode leads are mounted between the tongs parts of the busbar. The battery module is manufactured through the steps of mounting a busbar in an opening part of a busbar frame, inserting an electrode lead between the tongs parts of the busbar, closely adhering the busbar and the electrode lead through a jig, and removing the jig.

7. 发明公开

EP3910701A1 ALL-SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING ALL-SOLID-STATE BATTERY 审中-公开
公开(公告)号：EP3910701A1
公开(公告)日：2021-11-17
申请号：EP19909336.0
申请日：2019-12-26
申请人： Hitachi Zosen Corporation
发明人： FUKUI, Hideyuki
IPC分类号： H01M4/13 , H01M10/0562 , H01M10/0585 , H01M2/08 , H01M2/26 , H01M2/30
摘要： The present invention relates to an all-solid-state battery and a method for manufacturing the same. In an example of an embodiment of the all-solid-state battery and the method for manufacturing the same according to the present invention, a positive current collector 30 is folded to electrically connect positive layers 23 while a negative current collector 40 is folded to electrically connect negative layers 24.

8. 发明公开

EP3909085A1 MULTI-LAYER CONTACT PLATE AND METHOD THEREOF 审中-实审转让
公开(公告)号：EP3909085A1
公开(公告)日：2021-11-17
申请号：EP20703622.9
申请日：2020-01-08
申请人： Tiveni MergeCo, Inc.
发明人： FEES, Heiner , TRACK, Andreas , MAISCH, Ralf , EICHHORN, Alexander , DAMASKE, Jörg , BROKOP, Valentin , PFLÜGER, Hans-Joachim , PFLÜGER, Claus Gerald
IPC分类号： H01M2/20 , B23K26/21 , H01M2/22 , H01M2/24 , H01M2/30

9. 发明公开

EP3909084A1 ELECTRIC BATTERY ASSEMBLIES 审中-公开
公开(公告)号：EP3909084A1
公开(公告)日：2021-11-17
申请号：EP20700990.3
申请日：2020-01-13
申请人： Dukosi Limited
发明人： CUNNINGHAM, Stuart , LEWORTHY, Josh , MAIR, Stuart , SYLVESTER, Joel
IPC分类号： H01M2/10 , H01M10/42 , H01M10/48 , H01M2/12 , H01R4/48 , H01R11/28 , H01M2/06 , H01M2/30

10. 发明公开

EP3881370A1 BATTERY MODULE WITH BIMETALLIC TERMINAL BUSBAR AND ADAPTABLE CONNECTOR INTERFACE 审中-实审
公开(公告)号：EP3881370A1
公开(公告)日：2021-09-22
申请号：EP19817002.9
申请日：2019-11-11
申请人： Rivian IP Holdings, LLC
发明人： WYNN, Nathaniel, C. , BUTTERFIELD, Kyle , COLLINS, Tyler
IPC分类号： H01M2/10 , H01M2/20 , H01M2/30

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