公开(公告)号：US09755217B2

公开(公告)日：2017-09-05

申请号：US15487166

申请日：2017-04-13

Applicant: SANYO Electric Co., Ltd.

Inventor： Takayuki Hattori ,  Yoshinori Yokoyama ,  Eiji Okutani ,  Yasuhiro Yamauchi

IPC: H01M2/34 ,  H01M10/0587 ,  H01M2/12

CPC classification number: H01M2/345 ,  H01M2/00 ,  H01M2/02 ,  H01M2/0217 ,  H01M2/024 ,  H01M2/04 ,  H01M2/043 ,  H01M2/12 ,  H01M2/1223 ,  H01M2/1235 ,  H01M2/362 ,  H01M10/02 ,  H01M10/0587 ,  H01M2200/20 ,  H01M2220/10 ,  H01M2220/20

Abstract: A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom; a flat electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, all of which are stored in the prismatic outer body; a sealing plate sealing up the mouth of the prismatic outer body; and a positive electrode terminal attached to the sealing plate in an electrically insulated manner. The sealing plate includes a gas release valve and an electrolyte pour hole and further includes, on the front face, a concaved flat face having an identification code. With the prismatic secondary battery of the invention, a jig for assembly or the like is unlikely to come into contact with the identification code during an assembly process of the prismatic secondary battery, hence the identification code is unlikely to be abraded, and the traceability is unlikely to be lost.

公开(公告)号：US09741985B2

公开(公告)日：2017-08-22

申请号：US14614821

申请日：2015-02-05

Applicant: SANYO Electric Co., Ltd.

Inventor： Eiji Okutani ,  Yoshinori Yokoyama ,  Takayuki Hattori ,  Yasuhiro Yamauchi

IPC: H01M2/12 ,  H01M2/02 ,  H01M2/04 ,  H01M2/36 ,  B21K23/00

CPC classification number: H01M2/1223 ,  B21K23/00 ,  H01M2/024 ,  H01M2/043 ,  H01M2/12 ,  H01M2/362 ,  H01M2220/20

Abstract: A sealing plate for a prismatic secondary battery includes a pair of mouths for attaching a negative and positive electrode terminals, one mouth being formed near one end in a longitudinal direction of the sealing plate, and the other mouth being formed near the other end, coining areas used for positioning of an insulating member and formed around the pair of mouths on a front face of the sealing plate, a gas release valve and an electrolyte pour hole formed between the pair of mouths, and grooves formed between the respective coining areas and the long side edge of the sealing plate. The groove has a smaller depth near the gas release valve than the depth near the coining area. Even when the sealing plate is produced through forging, the front face has good flatness and the coining areas are unlikely to have a sink mark or a shear drop.

公开(公告)号：US09680145B2

公开(公告)日：2017-06-13

申请号：US14192249

申请日：2014-02-27

Applicant: SANYO Electric Co., Ltd.

Inventor： Takayuki Hattori ,  Yasuhiro Yamauchi

IPC: H01M2/04 ,  H01M2/30 ,  H01M2/06

CPC classification number: H01M2/30 ,  H01M2/043 ,  H01M2/06 ,  H01M2/305 ,  H01M2220/20

Abstract: A prismatic nonaqueous electrolyte secondary battery includes a convex portion on a stepped portion of a stepped through hole of a positive electrode external conduction member. An upper end side of a caulked portion of a positive electrode terminal member is caulked by being inserted from a side of a small-diameter portion into the stepped through hole of a positive electrode external conduction member, and a convex portion of the positive electrode external conduction member is covered with a tip side of the caulked portion. Therefore, a terminal member and an external conduction member have a great bond strength, and rarely rotate with respect to each other. Thus, there is less concern that a conductivity decreases even when the battery is used under an environment including a lot of vibrations.

公开(公告)号：US20170092924A1

公开(公告)日：2017-03-30

申请号：US15278616

申请日：2016-09-28

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Kazuhiro Kitaoka ,  Yasuhiro Yamauchi

IPC: H01M2/26 ,  H01M2/08 ,  H01M2/34 ,  H01M2/30

CPC classification number: H01M2/26 ,  H01M2/0217 ,  H01M2/08 ,  H01M2/305 ,  H01M2/345 ,  H01M2200/20 ,  H01M2220/20

Abstract: A prismatic secondary battery in which a deformation plate becoming deformed when a pressure inside the battery becomes equivalent to or higher than a predetermined value is disposed in a conductive path between a positive electrode plate and a positive electrode terminal. A positive electrode collector electrically connected to the positive electrode plate includes a collector body portion disposed on an electrode body side of the deformation plate, a collector connection that extends from an end of the collector body portion in a longitudinal direction of a sealing plate towards the sealing plate, and a lead portion that extends from the collector connection in the longitudinal direction of the sealing plate. A positive electrode tab portion is connected to the lead portion.

公开(公告)号：US20160043380A1

公开(公告)日：2016-02-11

申请号：US14803340

申请日：2015-07-20

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Hiromasa Nishijima ,  Yasuhiro Yamauchi

IPC: H01M2/34

CPC classification number: H01M2/345

Abstract: A rectangular secondary battery according to the present invention includes an electroconductive member, a first insulating member, a pressure-sensitive circuit breaker that includes an inversion plate and a positive electrode current collector. The electroconductive member has a first outer side surface and a second outer side surface that face away from each other. The first insulating member includes a pair of short side walls. One of the short side walls is located outside of the first outer side surface and presses the first outer side surface toward the second outer side surface. The other short side wall is located outside of the second outer side surface and presses the second outer side surface toward the first outer side surface.

Abstract translation: 根据本发明的矩形二次电池包括导电构件，第一绝缘构件，包括反转板和正极集电体的压敏断路器。 导电构件具有彼此远离的第一外侧表面和第二外侧表面。 第一绝缘构件包括一对短侧壁。 短侧壁中的一个位于第一外侧表面的外侧，并将第一外侧表面朝向第二外侧表面按压。 另一个短侧壁位于第二外侧表面的外侧，并将第二外侧表面朝向第一外侧表面按压。

公开(公告)号：US09059460B2

公开(公告)日：2015-06-16

申请号：US14610643

申请日：2015-01-30

Applicant: SANYO Electric Co., Ltd.

Inventor： Takayuki Hattori ,  Eiji Okutani ,  Yoshinori Yokoyama ,  Yasuhiro Yamauchi

IPC: H01M2/36 ,  H01M2/04 ,  H01M2/12 ,  H01M2/02 ,  H01M10/04

CPC classification number: H01M2/362 ,  H01M2/0217 ,  H01M2/0237 ,  H01M2/024 ,  H01M2/0426 ,  H01M2/043 ,  H01M2/0439 ,  H01M2/12 ,  H01M2/1223 ,  H01M2/361 ,  H01M10/0431 ,  H01M2200/20

Abstract: A prismatic secondary battery 10 includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate 20 sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal 15 and a negative electrode terminal 17 attached to the sealing plate 20; the sealing plate 20 includes a gas release valve 25 at the center between the positive electrode terminal 15 and the negative electrode terminal 17 and includes an electrolyte pour hole 23 on one side of the gas release valve 25 and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code 33.

Abstract translation: 棱柱形二次电池10包括具有口部和底部并且存储电极组件，正极集电体，负极集电体和电解质的棱柱形中空外体，密封板20，其密封棱柱形中空外部 主体和安装在密封板20上的正极端子15和负极端子17; 密封板20包括在正极端子15和负极端子17之间的中心处的气体释放阀25，并且在气体释放阀25的一侧包括电解液浇注孔23，在前侧的另一侧 表面，具有比周边部分的高度低的凹陷平面; 并且凹形平面形成有识别码33。

公开(公告)号：US08980469B2

公开(公告)日：2015-03-17

申请号：US13750616

申请日：2013-01-25

Applicant: SANYO Electric Co., Ltd. ,  Toyota Jidosha Kabushiki Kaisha

Inventor： Eiji Okutani ,  Yoshinori Yokoyama ,  Yasuhiro Yamauchi ,  Toshiyuki Nohma ,  Hironori Harada ,  Toshihiro Takada ,  Hiroshi Inukai ,  Akira Kiyama ,  Ryuta Morishima

IPC: H01M2/00 ,  H01M2/02 ,  H01M2/08 ,  H01M2/12 ,  H01M2/34

CPC classification number: H01M2/0217 ,  H01M2/34

Abstract: A high-reliability prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock is provided. The prismatic secondary battery includes a second insulating member having a first through-hole, the second insulating member being arranged between a first region of a positive electrode collector and an inversion plate. The first region of the positive electrode collector and the inversion plate are electrically connected to each other through the first through-hole. The second insulating member has a plurality of fixing pawl portions. The fixing pawl portions are hooked and fixed to a fixing portion formed on the outer surface side of the conductive member.

Abstract translation: 提供具有电流中断机构的高可靠性棱柱二次电池，即使电池受到冲击也不会损坏。 棱柱二次电池包括具有第一通孔的第二绝缘构件，第二绝缘构件设置在正极集电体的第一区域和反转板之间。 正极集电体和反转板的第一区域通过第一贯通孔电连接。 第二绝缘构件具有多个固定爪部。 固定棘爪部钩挂并固定在形成在导电构件的外表面侧上的固定部分上。

公开(公告)号：US20140045019A1

公开(公告)日：2014-02-13

申请号：US13962063

申请日：2013-08-08

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Yoshinori Yokoyama ,  Yasuhiro Yamauchi

IPC: H01M10/0587 ,  H01M10/0567

CPC classification number: H01M10/0587 ,  H01M2/22 ,  H01M2/263 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0567 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A nonaqueous electrolyte secondary battery includes: a flat winding electrode assembly formed by winding elongated positive and negative electrodes with an elongated separator interposed therebetween; and an outer body storing the flat winding electrode assembly and a nonaqueous electrolyte. The flat winding electrode assembly includes a positive electrode substrate exposed portion wound on one end, and a negative electrode substrate exposed portion wound on the other end. A positive electrode collector is welded and connected to both sides of the outermost surface of the wound positive electrode substrate exposed portion. A negative electrode collector is welded and connected to both sides of the outermost surface of the wound negative electrode substrate exposed portion. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. This structure provides a nonaqueous electrolyte secondary battery that has excellent cycling characteristics.

Abstract translation: 非水电解质二次电池包括：平坦的绕组电极组件，其通过将细长的正极和负极缠绕在其间的细长隔板形成; 以及存储扁平绕组电极组件和非水电解质的外体。 扁平绕组电极组件包括缠绕在一端的正电极衬底暴露部分和缠绕在另一端的负电极衬底暴露部分。 将正极集电体焊接并连接到缠绕的正极基板暴露部分的最外表面的两侧。 将负极集电体焊接并连接到卷绕的负极基板露出部分的最外表面的两侧。 非水电解质含有在制造非水电解质二次电池时具有草酸盐络合物作为阴离子的锂盐。 该结构提供了具有优异的循环特性的非水电解质二次电池。

公开(公告)号：US20130230748A1

公开(公告)日：2013-09-05

申请号：US13750505

申请日：2013-01-25

Applicant: SANYO ELECTRIC CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keisuke Minami ,  Masahiro Iyori ,  Yoshinori Yokoyama ,  Toyoki Fujihara ,  Yasuhiro Yamauchi ,  Toshiyuki Nohma ,  Hironori Harada ,  Toshihiro Takada ,  Ryuta Morishima

IPC: H01M2/34 ,  H01M10/04

CPC classification number: H01M2/345 ,  H01M4/13 ,  H01M4/366 ,  H01M10/0413 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2200/20 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/4911

Abstract: A method for manufacturing a nonaqueous electrolyte secondary battery including a current interruption mechanism that interrupts electric current includes disposing, in the outer body, an electrode assembly and a nonaqueous electrolyte containing a compound having at least one of a cyclohexyl group and a phenyl group, adjusting the nonaqueous electrolyte to contain the compound having at least one of a cyclohexyl group and a phenyl group in an amount of from 2.5 g/m2 to 5.0 g/m2 with respect to a formation area of a positive electrode active material layer on a positive electrode substrate surface, and thereafter performing aging treatment at 60° C. or more at a state of charge of 60% or more. This battery exhibits excellent output characteristics in a low temperature condition and can sufficiently ensure reliability even when the battery is overcharged through two-step charging in a low temperature condition.

Abstract translation: 包括具有中断电流的电流中断机构的非水电解质二次电池的制造方法包括在外体中设置电极组件和含有具有环己基和苯基中的至少一个的化合物的非水电解质，调整 含有相对于正极上的正极活性物质层的形成面积为2.5g / m 2〜5.0g / m 2的环己基和苯基中的至少一种的化合物的非水电解质 基板表面，然后在60％以上的电荷下进行60℃以上的时效处理。 该电池在低温条件下表现出优异的输出特性，并且即使当在低温条件下通过两步充电来对电池进行过充电时也可充分确保可靠性。

公开(公告)号：US20220278432A1

公开(公告)日：2022-09-01

申请号：US17748370

申请日：2022-05-19

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Yasuhiro Yamauchi

IPC: H01M50/578 ,  H01M50/147 ,  H01M10/0525

Abstract: A secondary battery includes an electrode assembly including first and second electrodes, an outer body having an opening and housing the electrode assembly, a conductive sealing plate sealing the opening, and a deformable member. The sealing plate has a first through-hole. The deformable member seals the first through-hole. When the opening of the outer body faces upward, a second electrode connecting member electrically connected to the second electrode is above the deformable member. A conductive conducting member is disposed between the second electrode connecting member and the deformable member. The diameter of the conducting member is larger than the diameter of the first through-hole. When the pressure inside the outer body becomes equal to or higher than a predetermined value, the deformable member is deformed and brings the conducting member into contact with the second electrode connecting member and electrically connects the sealing plate and the second electrode connecting member.