公开(公告)号：US20190237799A1

公开(公告)日：2019-08-01

申请号：US16378021

申请日：2019-04-08

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Katsuaki KAWASUMI ,  Toru ODANI ,  Kazumasa TAKESHI

IPC分类号： H01M10/0525 ,  H01M10/0567

CPC分类号： H01M10/0525 ,  C07C309/80 ,  C07C309/84 ,  C07C317/24 ,  C07C317/44 ,  H01M2/10 ,  H01M2/263 ,  H01M4/1315 ,  H01M10/0567 ,  H01M10/44 ,  H01M10/48 ,  H01M2220/20 ,  H01M2300/0028 ,  Y02E60/122 ,  Y02T10/7011

摘要： A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution including at least one kind of sulfonyl compounds that are represented by a chemical formula R1(—O—C(═O)—R2-S(═O)2—Rf1)n1 or the like. In the chemical formula, R1 represents of an n1-valent hydrocarbon group, an n1-valent oxygen-containing hydrocarbon group, an n1-valent halogenated hydrocarbon group and an n1-valent halogenated oxygen-containing hydrocarbon group. R2 represents one of a divalent hydrocarbon group and a divalent halogenated hydrocarbon group. Rf1 represents one of a halogen group and a monovalent halogenated hydrocarbon group. n1 is an integer of 2 or more.

公开(公告)号：US20190221825A1

公开(公告)日：2019-07-18

申请号：US16179684

申请日：2018-11-02

申请人： Samsung SDI Co., Ltd.

发明人： Hyun Soo LEE ,  Jeong Won OH ,  Sang Won BYUN

IPC分类号： H01M2/26 ,  H01M10/0525

CPC分类号： H01M2/266 ,  H01M2/26 ,  H01M2/263 ,  H01M10/0525 ,  H01M2220/30

摘要： A secondary battery includes: an electrode assembly including a main tab; a current collecting member adjacent the main tab; and a sub-tab electrically connecting the main tab to the current collecting member. The main tab is in and welded to the sub-tab, and the sub-tab and the main tab are bent in the same direction on the current collecting member.

公开(公告)号：US20190198882A1

公开(公告)日：2019-06-27

申请号：US16331513

申请日：2016-09-23

申请人： Samsung SDI Co., Ltd.

发明人： Hyun Ki JEONG

IPC分类号： H01M4/66 ,  H01M2/26 ,  H01M4/70 ,  H01M2/30 ,  H01M2/14 ,  H01M2/04

CPC分类号： H01M4/661 ,  H01M2/0404 ,  H01M2/14 ,  H01M2/26 ,  H01M2/263 ,  H01M2/30 ,  H01M4/70 ,  H01M10/0525 ,  Y02E60/122 ,  Y02T10/7011

摘要： An embodiment of the present invention relates to a secondary battery, and a purpose to be achieved is to provide a secondary battery having a high-output characteristic and a reduced defective rate. To this end, the present invention provides a secondary battery comprising: a can; a cap assembly for sealing the can; and an electrode assembly, contained in the can, comprising: a cathode plate; an anode plate; a separator disposed between the cathode plate and the anode plate; a cathode tab attached to the cathode plate and extending toward one of the can and the cap assembly; and an anode tab attached to the anode plate and extending toward the other of the can and the cap assembly, wherein the anode tab is made of nickel-plated copper.

公开(公告)号：US20190190092A1

公开(公告)日：2019-06-20

申请号：US16093391

申请日：2017-12-07

申请人： LG Chem, Ltd.

发明人： Su-Hyun Kim ,  Su-Rim Lee ,  Song-Taek Oh

IPC分类号： H01M10/48 ,  H01M2/26 ,  H01M2/30

CPC分类号： H01M10/486 ,  G01R27/00 ,  G01R31/36 ,  H01M2/26 ,  H01M2/263 ,  H01M2/30 ,  H01M4/661 ,  H01M10/0431 ,  H01M10/045 ,  H01M10/0583 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/4285 ,  H01M10/48 ,  H01M2200/00

摘要： Disclosed is a battery cell having an electrode assembly configured as a structure in which a cathode, an anode, and a separator interposed between the cathode and the anode, wherein a surface or both surfaces of respective electrode current collectors of the cathode and the anode are coated with an electrode mixture including an electrode active material, the cathode and the anode are provided with a first cathode terminal and a first anode terminal respectively serving as external input/output terminals of the battery cell, and at least one of the cathode and the anode is provided with a resistance measurement terminal at a position opposite to the external input/output terminal, for measuring a resistance of an electrode current collector.

公开(公告)号：US20180277823A1

公开(公告)日：2018-09-27

申请号：US15926188

申请日：2018-03-20

申请人： SANYO Electric Co., Ltd. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shinichirou Yoshida ,  Hiroyuki Inoue ,  Eiji Okutani ,  Takashi Tokunaga ,  Toshihiro Takada ,  Takenori Tsuchiya

IPC分类号： H01M2/34 ,  H01M2/08 ,  H01M2/26 ,  H01M2/06 ,  H01M2/02

CPC分类号： H01M2/345 ,  H01M2/0217 ,  H01M2/0277 ,  H01M2/0426 ,  H01M2/06 ,  H01M2/08 ,  H01M2/263 ,  H01M2/30 ,  H01M10/0431 ,  H01M2220/20

摘要： A battery includes: an electrode body; an electrode current collector; a sealing body; an external terminal; an electrical conductor connected to the external terminal; a deforming plate sealing an opening of the electrical conductor, electrically connected to the electrical conductor and to the current collector, and deformed when an internal pressure reaches a predetermined pressure; and a first insulator between the deforming plate and the current collector. The current collector includes a base, and a lead connecting to the electrode body. First to fourth fasteners fasten the base and the first insulator. Between the first and second fasteners, the base is electrically connected to the deforming plate. The second fastener is closer to the lead than the first fastener. The second fastener is closer to a connection between the deforming plate and the electrode current collector than a position of the first insulator supported toward the sealing body.

公开(公告)号：US10084177B2

公开(公告)日：2018-09-25

申请号：US14254854

申请日：2014-04-16

申请人： SAMSUNG SDI CO., LTD.

发明人： Min-Hyung Guen

IPC分类号： H01M2/34 ,  H01M2/26

CPC分类号： H01M2/34 ,  H01M2/263 ,  H01M2/345 ,  H01M2/348 ,  H01M2200/103 ,  H01M2200/20

摘要： A rechargeable battery includes an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a cap plate coupled to the case; a terminal electrically connected to the first electrode and protruding out of the cap plate; a short-circuit member at a short-circuit opening in the cap plate and configured to deform to electrically connect the first electrode and the second electrode; and a blocking member below the short-circuit opening and having a plurality of openings.

公开(公告)号：US10079370B2

公开(公告)日：2018-09-18

申请号：US14944846

申请日：2015-11-18

申请人： SANYO Electric Co., Ltd.

发明人： Ryoichi Wakimoto ,  Eiji Okutani ,  Shinichiro Yoshida

IPC分类号： H01M2/02 ,  H01M4/66 ,  H01M10/04 ,  H01M2/26 ,  H01M2/22 ,  H01M2/30 ,  H01M2/04

CPC分类号： H01M2/0217 ,  H01M2/0237 ,  H01M2/043 ,  H01M2/22 ,  H01M2/263 ,  H01M2/30 ,  H01M4/661 ,  H01M10/0431 ,  H01M2220/20

摘要： The thickness of a terminal connection portion of a positive electrode current collector is greater than that of a terminal connection portion of a negative electrode current collector. The terminal connection portion of the positive electrode current collector has a through-hole, and a positive electrode terminal is inserted into the through-hole and is upset on the terminal connection portion. The terminal connection portion of the negative electrode current collector has a through-hole, and a negative electrode terminal is inserted into the through-hole and is upset on the terminal connection portion. A recessed portion is formed in a lower surface of the positive electrode terminal connection portion around the through-hole, and a lower end portion of the positive electrode terminal is disposed in the recessed portion.

公开(公告)号：US10050250B2

公开(公告)日：2018-08-14

申请号：US14463725

申请日：2014-08-20

申请人： LG Chem, Ltd.

发明人： Sung Joon Park ,  Ho Jin Jeon ,  Bo Hyun Kim ,  Dae Sik Choi ,  Jung Ho Park ,  Jae Sik Yoon ,  Yong Pal Park ,  Seung Don Choi ,  Hye Jin Kang

IPC分类号： H01M4/00 ,  H01M2/26 ,  H01M4/66 ,  H01M4/13 ,  H01M10/04 ,  H01M10/0525

CPC分类号： H01M2/263 ,  H01M4/13 ,  H01M4/661 ,  H01M4/667 ,  H01M10/0431 ,  H01M10/0525 ,  H01M2300/0017

摘要： Provided are an anode for a secondary battery including an anode collector, an anode active material coated on the anode collector, and a non-coating portion (anode tab) which protrudes from one side of the anode collector and is not coated with an anode active material, wherein the anode includes a metal member which is bonded to the non-coating portion and has higher reactivity or reducibility with respect to a metal oxide than the anode collector, and a secondary battery including the anode.

公开(公告)号：US20180219209A1

公开(公告)日：2018-08-02

申请号：US15747647

申请日：2016-07-25

申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

发明人： Frederic DEWULF ,  Pierre JOST

IPC分类号： H01M2/34 ,  H01M2/02 ,  H01M2/26 ,  H01M2/12 ,  H01M10/0525 ,  H01M10/0587 ,  H01M4/66 ,  H01M4/70

CPC分类号： H01M2/345 ,  H01M2/022 ,  H01M2/027 ,  H01M2/0285 ,  H01M2/1241 ,  H01M2/1653 ,  H01M2/263 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2200/20 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to an electrochemical storage battery (A) containing lithium, comprising an electrochemical bundle (F), two current collectors, one of which is connected to the bundle anode and the other to the bundle cathode, and a housing (6) elongated along a central axis (X) and having a lid (9), a bottom (8) and a side casing (7) joined to both the bottom and the lid, the housing being designed to receive the bundle in a sealed manner, and some of the current collectors forming the poles (40, 50) extending through the housing. According to the invention, a circuit-breaker device is provided, which has a housing bottom wall that deforms in the plastic deformation range, as well as a rated breaking line provided around the central portion of the collector, which can tear in order to electrically separate said central portion, connected to the bottom, from the main external surface of the current collector, which is connected to one end of the electrochemical bundle.

公开(公告)号：US20180190963A1

公开(公告)日：2018-07-05

申请号：US15908327

申请日：2018-02-28

申请人： Ningde Amperex Technology Limited

发明人： Peipei Guo ,  Yi Zhao ,  Ping He ,  Hongxin Fang ,  Wenqiang Cheng

IPC分类号： H01M2/26 ,  H01M10/04 ,  H01M10/0585

CPC分类号： H01M2/266 ,  H01M2/22 ,  H01M2/263 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2220/20

摘要： The present invention provides a secondary battery cell and winding formation system thereof. The secondary battery cell comprises an anode electrode plate, an anode electrode tab, a cathode electrode plate, a cathode electrode tab and a separator. The secondary battery cell winding formation system comprises 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. The secondary battery cell manufactured by the secondary battery cell winding formation system of the present invention can effectively prevent the secondary battery cell from generating internal short circuit, thus improving the safety performance of the secondary battery cell while ensuring a high energy density.