公开(公告)号：US10431804B2

公开(公告)日：2019-10-01

申请号：US15427254

申请日：2017-02-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Yasuhiro Yamauchi

IPC: H01M2/34 ,  H01M2/04 ,  H01M2/06 ,  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.

公开(公告)号：US10326169B2

公开(公告)日：2019-06-18

申请号：US15337516

申请日：2016-10-28

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Hirofumi Furukawa ,  Kazuhiro Kitaoka ,  Yasuhiro Yamauchi

IPC: H01M10/0585 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1391 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66 ,  H01M2/36 ,  H01M10/04 ,  H01M10/0525 ,  B23K26/20 ,  H01M2/04 ,  H01M2/20 ,  H01M2/26 ,  B23K101/36

Abstract: A first electrode body element and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a lead portion of a positive electrode collector attached to a sealing plate, a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a lead portion of a negative electrode collector attached to the sealing plate, and the first electrode body element and the second electrode body element are arranged together as one such that an electrode body is formed.

公开(公告)号：US10256456B2

公开(公告)日：2019-04-09

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

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.

公开(公告)号：US10199628B2

公开(公告)日：2019-02-05

申请号：US15278616

申请日：2016-09-28

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Kazuhiro Kitaoka ,  Yasuhiro Yamauchi

IPC: H01M2/08 ,  H01M2/26 ,  H01M2/30 ,  H01M2/34 ,  H01M2/02

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：US20170256775A1

公开(公告)日：2017-09-07

申请号：US15427254

申请日：2017-02-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Yasuhiro Yamauchi

IPC: H01M2/34 ,  H01M10/0525

CPC classification number: H01M2/345 ,  H01M2/043 ,  H01M2/06 ,  H01M10/0525 ,  H01M2200/103 ,  H01M2200/20 ,  H01M2220/20

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.

公开(公告)号：US09660227B2

公开(公告)日：2017-05-23

申请号：US14989413

申请日：2016-01-06

Applicant: SANYO Electric Co., Ltd.

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

IPC: H01M2/04 ,  H01M2/12 ,  H01M2/36 ,  H01M2/02 ,  H01M2/00 ,  H01M10/02

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：US09653722B2

公开(公告)日：2017-05-16

申请号：US14192338

申请日：2014-02-27

Applicant: SANYO Electric Co., Ltd.

Inventor： Masakazu Yamada ,  Takayuki Hattori ,  Yohei Muroya ,  Yasuhiro Yamauchi

IPC: H01M2/04 ,  H01M2/30 ,  H01M10/04 ,  H01M2/06 ,  H01M2/02

CPC classification number: H01M2/305 ,  H01M2/0217 ,  H01M2/06 ,  H01M10/0431 ,  H01M2220/20

Abstract: There is provided a prismatic secondary battery having high reliability and including a connecting part, wherein a terminal member and an external conduction member are connected by a swaged part and a welded part. The terminal member includes a flange, a first connecting part formed on a first surface side of the flange, and a second connecting part formed on a second surface side of the flange. The flange and the second connecting part are disposed on a battery exterior side than a sealing body. The first connecting part penetrates a through-hole formed in the sealing body. The second connecting part penetrates a through-hole formed in an external conduction member. The second connecting part includes a tip part swaged on the external conduction member. An abutting part of a tip of the swaged part of the second connecting part and a protruding part of the external conduction member is weld-connected.

公开(公告)号：US09627659B2

公开(公告)日：2017-04-18

申请号：US14716193

申请日：2015-05-19

Applicant: Sanyo Electric Co., Ltd.

Inventor： Masakazu Yamada ,  Eiji Okutani ,  Yasuhiro Yamauchi

IPC: H01M2/02 ,  H01M2/14 ,  H01M10/04

CPC classification number: H01M2/024 ,  H01M2/0275 ,  H01M2/0277 ,  H01M2/14 ,  H01M10/0468 ,  H01M2220/10 ,  H01M2220/20

Abstract: An insulation sheet is disposed between a rectangular housing and an electrode body. A first side wall of the insulation sheet is disposed between a large-area side surface of the rectangular housing and the electrode body. The first side wall includes a first folded portion that is folded along an edge of the first side wall near a sealing plate. The first folded portion extends from an edge of the first side wall near the sealing plate toward a bottom surface of the rectangular housing and is disposed between the large-area side surface and the electrode body in such a way that the first folded portion overlaps the first side wall.

公开(公告)号：US20170092928A1

公开(公告)日：2017-03-30

申请号：US15278686

申请日：2016-09-28

Applicant: Sanyo Electric Co., Ltd.

Inventor： Ryoichi Wakimoto ,  Kazuhiro Kitaoka ,  Yasuhiro Yamauchi

IPC: H01M2/34 ,  H01M2/06 ,  H01M2/02

CPC classification number: H01M2/345 ,  H01M2/0262 ,  H01M2/043 ,  H01M2/06 ,  H01M2/22 ,  H01M2/266 ,  H01M10/0468 ,  H01M10/052 ,  H01M2200/20 ,  H01M2220/20 ,  Y02E60/122

Abstract: An electrode body including a positive electrode plate and a negative electrode plate is accommodated in a prismatic outer package having an opening. The opening of the prismatic outer package is sealed with a sealing plate. The electrode body includes positive electrode tab portions stacked at an end portion on the sealing plate side. The stacked positive electrode tab portions are divided into two forming a first tab group and a second tab group. A resin member serving as a holding member holding a metal member is fixed to the sealing plate. The metal member is disposed between the first tab group and the second tab group. Lead portions of a positive electrode collector is connected to the first tab group and the second tab group at a surface positioned opposite to a surface that opposes the metal member.

公开(公告)号：US09559382B2

公开(公告)日：2017-01-31

申请号：US13961921

申请日：2013-08-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Yoshinori Yokoyama ,  Yasuhiro Yamauchi

IPC: H01M10/0567 ,  H01M10/04 ,  H01M10/0587 ,  H01M2/26 ,  H01M4/13

CPC classification number: H01M10/0567 ,  H01M2/263 ,  H01M4/13 ,  H01M10/0431 ,  H01M10/0587 ,  Y02E60/122

Abstract: A nonaqueous electrolyte secondary battery includes a flat winding electrode assembly including a positive electrode substrate exposed portion on one end and a negative electrode substrate exposed portion on the other end. The winding numbers of the positive and the negative electrode substrate exposed portions are each 30 or more. The positive and negative electrode substrate exposed portions each have an outermost surface welded and connected with a positive and a negative electrode collectors, respectively. A nonaqueous electrolyte used to fabricate the battery contains a lithium salt having an oxalate complex as an anion. At the welded connection portions, all of the layers of the positive electrode substrate exposed portion are melted to be welded and connected to the positive electrode collector, and all of the layers of the negative electrode substrate exposed portion are melted to be welded and connected to the negative electrode collector.

Abstract translation: 非水电解质二次电池包括：平面绕组电极组件，其在一端包括正电极基板暴露部分，另一端包括负电极基板暴露部分。 正极和负极基板暴露部分的绕组数均为30或更大。 正电极基板和负电极基板的露出部分分别具有最外表面焊接并分别与正极集电体和负极集电体连接。 用于制造电池的非水电解质包含具有草酸盐络合物作为阴离子的锂盐。 在焊接连接部分，将正极基板暴露部分的所有层熔化以熔接并连接到正极集电体，并且将负极基板暴露部分的所有层熔化以焊接并连接到 负极集电体。