公开(公告)号：US10964923B2

公开(公告)日：2021-03-30

申请号：US15991094

申请日：2018-05-29

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Yohei Muroya ,  Kazuki Takeno ,  Mitsuhiro Okada

IPC: H01M2/02 ,  H01M2/30 ,  H01M2/06 ,  H01M2/04 ,  H01M2/12 ,  H01M10/05 ,  H01M4/505 ,  H01M4/525 ,  H01M4/133 ,  H01M4/66 ,  H01M4/38 ,  H01M2/22 ,  H01M2/10 ,  H01M4/02

Abstract: A prismatic secondary battery includes an electrode body including a positive-electrode sheet and a negative-electrode sheet, a prismatic exterior body that accommodates the electrode body, a sealing plate that seals an opening of the prismatic exterior body, and a negative terminal electrically connected to the negative-electrode sheet. The prismatic secondary battery is arranged such that the sealing plate extends in the vertical direction during use of the prismatic secondary battery. The positive-electrode sheet is electrically connected to the sealing plate. The sealing plate has a recessed portion on an outer surface and a terminal insertion hole formed in the recessed portion. The negative terminal is inserted in the terminal insertion hole. An outer insulating member is disposed between the negative terminal and the sealing plate. The sealing plate has a first groove extending to an end of the recessed portion in the longitudinal direction of the sealing plate.

公开(公告)号：US20180351140A1

公开(公告)日：2018-12-06

申请号：US15991101

申请日：2018-05-29

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Yohei Muroya ,  Kazuki Takeno ,  Mitsuhiro Okada

IPC: H01M2/02 ,  H01M2/08 ,  H01M10/05 ,  H01M4/505 ,  H01M4/525 ,  H01M4/38 ,  H01M4/133 ,  H01M4/66

Abstract: A prismatic secondary battery includes an electrode body including a positive-electrode sheet and a negative-electrode sheet, a prismatic exterior body that accommodates the electrode body, a sealing plate that seals an opening of the prismatic exterior body, and a negative terminal electrically connected to the negative-electrode sheet. The positive-electrode sheet is electrically connected to the sealing plate. The sealing plate has a recessed portion on an outer surface and a terminal insertion hole formed in the recessed portion. The negative terminal is inserted in the terminal insertion hole. An outer insulating member is disposed between the negative terminal and the sealing plate. The sealing plate has a first groove extending to an end of the recessed portion in the longitudinal direction of the sealing plate.

公开(公告)号：US20180351139A1

公开(公告)日：2018-12-06

申请号：US15991094

申请日：2018-05-29

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Yohei Muroya ,  Kazuki Takeno ,  Mitsuhiro Okada

IPC: H01M2/02 ,  H01M2/30 ,  H01M10/05 ,  H01M4/505 ,  H01M4/525 ,  H01M4/38 ,  H01M4/133 ,  H01M4/66

Abstract: A prismatic secondary battery includes an electrode body including a positive-electrode sheet and a negative-electrode sheet, a prismatic exterior body that accommodates the electrode body, a sealing plate that seals an opening of the prismatic exterior body, and a negative terminal electrically connected to the negative-electrode sheet. The prismatic secondary battery is arranged such that the sealing plate extends in the vertical direction during use of the prismatic secondary battery. The positive-electrode sheet is electrically connected to the sealing plate. The sealing plate has a recessed portion on an outer surface and a terminal insertion hole formed in the recessed portion. The negative terminal is inserted in the terminal insertion hole. An outer insulating member is disposed between the negative terminal and the sealing plate. The sealing plate has a first groove extending to an end of the recessed portion in the longitudinal direction of the sealing plate.

公开(公告)号：US10957883B2

公开(公告)日：2021-03-23

申请号：US15991101

申请日：2018-05-29

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Yohei Muroya ,  Kazuki Takeno ,  Mitsuhiro Okada

IPC: H01M2/02 ,  H01M2/08 ,  H01M4/66 ,  H01M2/06 ,  H01M2/04 ,  H01M10/05 ,  H01M4/38 ,  H01M2/12 ,  H01M4/505 ,  H01M4/525 ,  H01M4/133 ,  H01M4/02 ,  H01M2/20 ,  H01M10/0525

Abstract: A prismatic secondary battery includes an electrode body including a positive-electrode sheet and a negative-electrode sheet, a prismatic exterior body that accommodates the electrode body, a sealing plate that seals an opening of the prismatic exterior body, and a negative terminal electrically connected to the negative-electrode sheet. The positive-electrode sheet is electrically connected to the sealing plate. The sealing plate has a recessed portion on an outer surface and a terminal insertion hole formed in the recessed portion. The negative terminal is inserted in the terminal insertion hole. An outer insulating member is disposed between the negative terminal and the sealing plate. The sealing plate has a first groove extending to an end of the recessed portion in the longitudinal direction of the sealing plate.

公开(公告)号：US20190288290A1

公开(公告)日：2019-09-19

申请号：US16254974

申请日：2019-01-23

Applicant: SANYO Electric Co., Ltd.

Inventor： Keisuke Minami ,  Kazuki Takeno ,  Toyoki Fujihara ,  Takuya Tamagawa

IPC: H01M4/62 ,  H01M4/36 ,  H01M10/0525

Abstract: A non-aqueous electrolyte secondary battery of one example according to an embodiment has an output of 1,000 W or more. An electrode body includes a protective layer which contains an insulating inorganic compound and which is provided on at least one surface of a positive electrode, a negative electrode, and a separator, and has a heat capacity per unit battery capacity of 16 J/K·Ah or more. The positive electrode has a surface resistance of 0.5 to 40Ω.

公开(公告)号：US12266818B2

公开(公告)日：2025-04-01

申请号：US17634411

申请日：2020-09-11

Applicant: SANYO Electric Co., Ltd.

Inventor： Yuji Ogishima ,  Keisuke Minami ,  Kazuki Takeno

IPC: H01M50/291 ,  H01M4/13 ,  H01M4/131 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/119 ,  H01M50/209

Abstract: Each prismatic cell is provided with a rolled electrode assembly, and the rolled electrode assembly has a flat section with a flat outer peripheral surface and two curved sections with a curved outer peripheral surface. Each spacer has a substrate and multiple ribs protruding on at least one side of the substrate, and the ribs are formed so as to face the flat section of the rolled electrode assembly and extend in a direction substantially perpendicular to the rolling axis of the rolled electrode assembly. The ribs have a length of 60 to 100 when the height of the flat section of the rolled electrode assembly is represented by 100, and the relationship 2≤B/A≤10 is satisfied where A is the width of the ribs and B is the distance between adjoining ribs.