公开(公告)号：US20200227714A1

公开(公告)日：2020-07-16

申请号：US16638953

申请日：2018-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA MOTOKAWA ,  KEISUKE SHIMIZU ,  CHIFUMI MURAYAMA

IPC: H01M2/26 ,  H01M10/647 ,  H01M2/30 ,  H01M2/20

Abstract: A battery pack includes a plurality of bus bars serving to form a plurality of parallel battery structures that each have parallel connection of two or more of a plurality of prismatic batteries. The plurality of bus bars electrically connect the plurality of prismatic batteries to connect the plurality of parallel battery structures in series. The plurality of parallel battery structures connected in series form a battery connection structure that includes a turn causing a reversal of direction of series connection of the plurality of parallel battery structures.

公开(公告)号：US20170200926A1

公开(公告)日：2017-07-13

申请号：US15314582

申请日：2015-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA MOTOKAWA ,  DAISUKE KISHII ,  NOBUYUKI NAKASAWA ,  KEISUKE SHIMIZU ,  AKIRA TAKANO

IPC: H01M2/10 ,  H01M10/42 ,  H01M2/20 ,  H01M2/12

CPC classification number: H01M2/1077 ,  H01M2/1083 ,  H01M2/1252 ,  H01M2/206 ,  H01M10/425 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A battery module includes a plurality of battery blocks. Each battery block includes: a cell assembly including a plurality of cells; a block holder for holding the cell assembly; and a metal plate. The plurality of cells are held in the block holder while the positive electrodes and negative electrodes of the cells are aligned. A projection or the metal plate is disposed outside the block holder. The tip of the projection of one of adjacent battery blocks is in contact with the metal plate of the other.

公开(公告)号：US20200251701A1

公开(公告)日：2020-08-06

申请号：US16638610

申请日：2018-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA MOTOKAWA ,  SHINGO KUME

IPC: H01M2/10 ,  H01M2/20 ,  H01M2/04 ,  H01M10/04 ,  H01M10/0587

Abstract: A cell module includes: a battery cell group configured with a plurality of cylindrical battery cells; a positive current collector; and a negative current collector. The negative current collector has: a substrate disposed on a sealing body side of the cylindrical battery cells such that the negative current collector covers the battery cell group; and a current collecting pin protruding toward the battery cell group from the substrate. The current collecting pin is inserted into a gap between the cylindrical battery cells along an axial direction of such battery cells, and presses the side surfaces of outer cans of at least two cylindrical battery cells neighboring each other.

公开(公告)号：US20190267686A1

公开(公告)日：2019-08-29

申请号：US16320096

申请日：2017-07-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KEISUKE SHIMIZU ,  AKIRA TAKANO ,  SHINYA MOTOKAWA ,  YOSHITO KAGA ,  TAKESHI ENOMOTO

IPC: H01M10/6554 ,  H01M10/613 ,  H01M10/647 ,  H01M10/6556 ,  H01M10/6568

Abstract: A battery module includes a battery assembly and a thermally-conductive member to hold or support battery assembly. The battery assembly has a plurality of first batteries and a plurality of second batteries that are alternately stacked. The thermally-conductive member includes a first component and a second component that are each disposed along a stacking direction of the batteries. The first component has a heat resistance to the second batteries higher than to the first batteries. The second component has a heat resistance to the first batteries higher than to the second batteries.

公开(公告)号：US20190273243A1

公开(公告)日：2019-09-05

申请号：US16333717

申请日：2017-11-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA MOTOKAWA ,  DAISUKE KISHII ,  KEISUKE SHIMIZU ,  AKIRA TAKANO

IPC: H01M2/34 ,  H01M2/20 ,  H01M2/12

Abstract: A cell module includes a plurality of battery cells each having a safety valve at a first end in a height direction, a first current collector plate including a main body having a through hole that at least partly overlaps the safety valve when viewed along the height direction and a lead extending into the through hole from the main body and being electrically connected to a first terminal of each of the battery cells, an exhaust duct disposed over a surface of the first current collector plate remote from the battery cells, and an insulating film being made of an insulating material and covering an area of the first current collector plate facing the exhaust duct. The safety valve opens when an internal pressure of any of the battery cells reaches or exceeds a predetermined level.

公开(公告)号：US20170092909A1

公开(公告)日：2017-03-30

申请号：US15126858

申请日：2015-03-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINYA MOTOKAWA ,  DAISUKE KISHII ,  KEISUKE SHIMIZU ,  AKIRA TAKANO

IPC: H01M2/10 ,  H01M10/643 ,  H01M10/6551

CPC classification number: H01M2/1077 ,  H01M2/1094 ,  H01M10/613 ,  H01M10/617 ,  H01M10/625 ,  H01M10/627 ,  H01M10/643 ,  H01M10/6551 ,  H01M10/6554 ,  H01M10/6563 ,  H01M2220/20

Abstract: Cells are arranged in a predetermined arrangement and are held by holding unit. The holding unit includes a first holding unit, a second holding unit, and a third holding unit. The first holding unit holds cells so as to partially cover the one side of the outer peripheral surfaces of the cells in the longitudinal direction. The second holding unit holds the cells so as to partially cover the other side of the outer peripheral surfaces of the cells in the longitudinal direction. The third holding unit holds the cells so as to cover a region that is covered with neither the first holding unit nor the second holding unit, of the outer peripheral surfaces of the cells in the longitudinal direction.