公开(公告)号：US10181596B2

公开(公告)日：2019-01-15

申请号：US15214765

申请日：2016-07-20

Applicant: Sanyo Electric Co., Ltd.

Inventor： Takuya Yamawaki ,  Eiji Okutani ,  Masakazu Yamada

IPC: H01M2/06 ,  H01M2/34 ,  H01M2/26

Abstract: A positive electrode sheet is electrically connected to a positive terminal with a positive electrode current collector, a deformable plate, and a conductive member interposed therebetween. When the pressure inside a battery is higher than or equal to a predetermined value, the deformable plate is deformed toward a sealing plate and an annular groove formed on a base portion of the positive electrode current collector is broken due to deformation of the deformable plate so that a conductive path between the positive electrode sheet and the positive terminal is disconnected. A first insulating member disposed between the deformable plate and the base portion of the positive electrode current collector includes a first rotation preventing protrusion on a surface thereof on a wound electrode body side and outside an outer circumferential edge of the base portion of the positive electrode current collector.

公开(公告)号：US20160380300A1

公开(公告)日：2016-12-29

申请号：US15194966

申请日：2016-06-28

Applicant: SANYO Electric Co., Ltd.

Inventor： Eiji Okutani ,  Shinichirou Yoshida ,  Takuya Yamawaki

IPC: H01M10/04 ,  H01M4/04 ,  H01M2/02

CPC classification number: H01M10/0431 ,  H01M2/263 ,  H01M10/052 ,  H01M10/058

Abstract: A wound electrode body includes a negative electrode core body exposed portion on one of the end portions of the wound electrode body in a winding axis direction, which is layered by being wound. A core body connection of a negative electrode collector is disposed on one of the outer surfaces of the layered negative electrode core body exposed portion, and a negative electrode collector receiving component is disposed on the other one of the outer surfaces. Furthermore, tapes are each disposed between the core body connection and the negative electrode core body exposed portion and between the negative electrode collector receiving component and the negative electrode core body exposed portion. Each tape includes a base material layer, and an adhesion layer containing a coloring agent.

Abstract translation: 卷绕电极体在卷绕电极体的卷绕轴方向的一个端部上具有负极芯体露出部，该卷绕电极体卷绕成层叠状。 在层叠的负极芯体露出部分的一个外表面上设置负极集电体的芯体连接，并且在另一个外表面上设置负极集电体接收部件。 此外，磁带分别设置在芯体连接部和负极芯体露出部之间，负极集电体容纳部件与负极芯体露出部之间。 每个胶带包括基材层和含有着色剂的粘合层。

公开(公告)号：US20170005301A1

公开(公告)日：2017-01-05

申请号：US15196580

申请日：2016-06-29

Applicant: SANYO Electric Co., Ltd.

Inventor： Takuya Yamawaki ,  Eiji Okutani

IPC: H01M2/02 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M2/028 ,  H01M2/0275 ,  H01M2/06 ,  H01M10/0525 ,  H01M10/0587

Abstract: A rolled electrode assembly having a positive electrode plate and a negative electrode plate is housed in a prismatic outer body having as mouth together with non-aqueous electrolyte, and the mouth of the prismatic outer body is sealed by a sealing plate made of metal. The rolled electrode assembly is housed in the prismatic outer body, with the outer surface of the rolled electrode assembly covered by an insulating sheet except for the outer surface facing the sealing plate. The arithmetic mean roughness (Sa) of at least one surface of the insulating sheet disposed between the rolled electrode assembly and the prismatic outer body is 0.3 μm or more.

Abstract translation: 具有正极板和负极板的卷绕电极组件被容纳在与非水电解质一起作为口部的棱柱形外部体中，棱柱形外部体的口部由金属制的密封板密封。 卷绕的电极组件容纳在棱柱形外部体中，卷绕的电极组件的外表面除了面向密封板的外表面之外由绝缘片覆盖。 设置在轧制电极组件和棱柱形外壳之间的绝缘片的至少一个表面的算术平均粗糙度（Sa）为0.3μm以上。

公开(公告)号：US10355251B2

公开(公告)日：2019-07-16

申请号：US15196580

申请日：2016-06-29

Applicant: SANYO Electric Co., Ltd.

Inventor： Takuya Yamawaki ,  Eiji Okutani

IPC: H01M10/0587 ,  H01M2/02 ,  H01M2/06 ,  H01M10/0525

Abstract: A rolled electrode assembly having a positive electrode plate and a negative electrode plate is housed in a prismatic outer body having as mouth together with non-aqueous electrolyte, and the mouth of the prismatic outer body is sealed by a sealing plate made of metal. The rolled electrode assembly is housed in the prismatic outer body, with the outer surface of the rolled electrode assembly covered by an insulating sheet except for the outer surface facing the sealing plate. The arithmetic mean roughness (Sa) of at least one surface of the insulating sheet disposed between the rolled electrode assembly and the prismatic outer body is 0.3 μm or more.

公开(公告)号：US10153478B2

公开(公告)日：2018-12-11

申请号：US15664232

申请日：2017-07-31

Applicant: SANYO Electric Co., Ltd.

Inventor： Shinichirou Yoshida ,  Eiji Okutani ,  Takuya Yamawaki

IPC: H01M2/34 ,  H01M2/02 ,  H01M2/30

Abstract: A battery includes a battery case, an electrode assembly, positive and negative electrode collectors, a sealing body, an external terminal, a conducting member, a deforming plate, and a first insulating member. The positive or negative electrode collector has a base portion facing the first insulating member, and a lead portion connected to the electrode assembly. A fixing portion fixing the base portion and the first insulating member to each other is provided in the first insulating member. The fixing portion is located nearer to the connection portion between the deforming plate and the positive or negative electrode collector than the sealing body side support position of the first insulating member. The outer peripheral edge of the electrode assembly side surface of the first insulating member is provided with a rib protruding to the electrode assembly side and extending along the outer peripheral edge of the base portion.

公开(公告)号：US11539067B2

公开(公告)日：2022-12-27

申请号：US16708589

申请日：2019-12-10

Applicant: SANYO Electric Co., Ltd.

Inventor： Yohei Muroya ,  Tomokazu Yamanaka ,  Takuya Yamawaki ,  Ryuhei Kai

IPC: H01M10/04 ,  H01M4/70 ,  H01M4/04 ,  H01M4/02

Abstract: A secondary battery production method is provided, with which deformation of a current collector is reduced. The method produces a secondary battery including: an electrode assembly having positive and negative electrode plates; and a positive electrode current collector. The positive electrode plate includes a positive electrode core and a positive electrode active material layer, and the electrode assembly includes a positive electrode core-stacked portion. The method includes: an electrode assembly production step of producing the electrode assembly; and an ultrasonic bonding step of ultrasonically bonding the positive electrode current collector to the positive electrode core-stacked portion. The positive electrode current collector has a thin-walled portion. In the ultrasonic bonding step, the thin-walled portion and the positive electrode core-stacked portion are sandwiched between a horn and an anvil, and the thin-walled portion and the positive electrode core-stacked portion are ultrasonically bonded together.

公开(公告)号：US20200243892A1

公开(公告)日：2020-07-30

申请号：US16708589

申请日：2019-12-10

Applicant: SANYO Electric Co., Ltd.

Inventor： Yohei Muroya ,  Tomokazu Yamanaka ,  Takuya Yamawaki ,  Ryuhei Kai

IPC: H01M10/04 ,  H01M4/04 ,  H01M4/70

Abstract: A secondary battery production method is provided, with which deformation of a current collector is reduced. The method produces a secondary battery including: an electrode assembly having positive and negative electrode plates; and a positive electrode current collector. The positive electrode plate includes a positive electrode core and a positive electrode active material layer, and the electrode assembly includes a positive electrode core-stacked portion. The method includes: an electrode assembly production step of producing the electrode assembly; and an ultrasonic bonding step of ultrasonically bonding the positive electrode current collector to the positive electrode core-stacked portion. The positive electrode current collector has a thin-walled portion. In the ultrasonic bonding step, the thin-walled portion and the positive electrode core-stacked portion are sandwiched between a horn and an anvil, and the thin-walled portion and the positive electrode core-stacked portion are ultrasonically bonded together.

公开(公告)号：US10256457B2

公开(公告)日：2019-04-09

申请号：US15214773

申请日：2016-07-20

Applicant: Sanyo Electric Co., Ltd.

Inventor： Takuya Yamawaki ,  Eiji Okutani ,  Masakazu Yamada

IPC: H01M2/06 ,  H01M2/26 ,  H01M2/34 ,  H01M10/0525 ,  H01M10/0587

Abstract: A conductive member including an opening portion is connected to a positive terminal and is integrally secured to a sealing plate together with an outer insulating member and a second insulating member. The conductive member opening portion is sealed by a deformable plate. A base portion of a positive electrode current collector is connected to the deformable plate. A first insulating member that is disposed between the deformable plate and the base portion of the positive electrode current collector includes a pair of first catch portions that are disposed so as to be aligned in a longitudinal direction of the sealing plate and a pair of second catch portions that are disposed so as to be aligned in a transverse direction of the sealing plate. The first catch portions and the second catch portions are connected to the second insulating member disposed between the sealing plate and the conductive member.

公开(公告)号：US20180076440A1

公开(公告)日：2018-03-15

申请号：US15664232

申请日：2017-07-31

Applicant: SANYO Electric Co., Ltd.

Inventor： Shinichirou Yoshida ,  Eiji Okutani ,  Takuya Yamawaki

IPC: H01M2/34 ,  H01M2/02

CPC classification number: H01M2/345 ,  H01M2/0217 ,  H01M2/0237 ,  H01M2/305 ,  H01M2200/20

Abstract: A battery includes a battery case, an electrode assembly, positive and negative electrode collectors, a sealing body, an external terminal, a conducting member, a deforming plate, and a first insulating member. The positive or negative electrode collector has a base portion facing the first insulating member, and a lead portion connected to the electrode assembly. A fixing portion fixing the base portion and the first insulating member to each other is provided in the first insulating member. The fixing portion is located nearer to the connection portion between the deforming plate and the positive or negative electrode collector than the sealing body side support position of the first insulating member. The outer peripheral edge of the electrode assembly side surface of the first insulating member is provided with a rib protruding to the electrode assembly side and extending along the outer peripheral edge of the base portion.

公开(公告)号：US20170025667A1

公开(公告)日：2017-01-26

申请号：US15214773

申请日：2016-07-20

Applicant: Sanyo Electric Co., Ltd.

Inventor： Takuya Yamawaki ,  Eiji Okutani ,  Masakazu Yamada

IPC: H01M2/34 ,  H01M4/131 ,  H01M10/48 ,  H01M4/133 ,  H01M4/587 ,  H01M4/66 ,  H01M10/0587 ,  H01M4/525

CPC classification number: H01M2/345 ,  H01M2/06 ,  H01M2/263 ,  H01M10/0525 ,  H01M10/0587

Abstract: A conductive member including an opening portion is connected to a positive terminal and is integrally secured to a sealing plate together with an outer insulating member and a second insulating member. The conductive member opening portion is sealed by a deformable plate. A base portion of a positive electrode current collector is connected to the deformable plate. A first insulating member that is disposed between the deformable plate and the base portion of the positive electrode current collector includes a pair of first catch portions that are disposed so as to be aligned in a longitudinal direction of the sealing plate and a pair of second catch portions that are disposed so as to be aligned in a transverse direction of the sealing plate. The first catch portions and the second catch portions are connected to the second insulating member disposed between the sealing plate and the conductive member.

Abstract translation: 包括开口部分的导电构件连接到正极端子，并与外部绝缘构件和第二绝缘构件一体地固定到密封板。 导电构件开口部分由可变形板密封。 正极集电体的基部与可变形板连接。 设置在正极集电体的可变形板和基部之间的第一绝缘构件包括：一对第一卡止部，其沿密封板的长度方向配置成一对第二卡定部; 被配置成沿密封板的横向排列的部分。 第一捕获部分和第二捕获部分连接到设置在密封板和导电构件之间的第二绝缘构件。