公开(公告)号：US20220328926A1

公开(公告)日：2022-10-13

申请号：US17634047

申请日：2020-09-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keisuke SHIMIZU ,  Katsushi ISHIZAKA

IPC: H01M50/383 ,  H01M50/325

Abstract: A power storage pack includes: at least one storage device including a gas discharging part that discharges a gas produced inside; a porous member that has a structure in which a plurality of fire extinguishing agent grains are collected and has an air gap inside; and a case that stores the storage device and the porous member. Each fire extinguishing agent grain is a collection of a plurality of fire extinguishing agent powders, and the porous member is provided such that the gas flows in the air gap.

公开(公告)号：US20230207955A1

公开(公告)日：2023-06-29

申请号：US17914186

申请日：2021-03-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keisuke SHIMIZU ,  Katsushi ISHIZAKA ,  Chifumi MURAYAMA

IPC: H01M50/358 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/204

CPC classification number: H01M50/358 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/204

Abstract: Provided is a battery pack (10) the reliability of which can be enhanced. This battery pack (10) accommodates a secondary battery (14) inside a case (12). The battery pack includes: an exhaust port (22) that provides communication between an internal space of the case (12) for accommodating the secondary battery (14) and the outside and that discharges gas discharged from the secondary battery (14) from the inner space to the outside; and a heat exchange body (24) that is provided to the exhaust port (22) and is formed of a porous material having a three-dimensional mesh structure so that gas passes therethrough.

公开(公告)号：US20210151842A1

公开(公告)日：2021-05-20

申请号：US17158647

申请日：2021-01-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shinya MOTOKAWA ,  Daisuke KISHII ,  Keisuke SHIMIZU ,  Akira TAKANO

IPC: H01M50/578 ,  H01M50/20 ,  H01M50/30 ,  H01M50/50 ,  H01M50/502 ,  H01M50/572 ,  H01M50/342

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：US20180269448A1

公开(公告)日：2018-09-20

申请号：US15983660

申请日：2018-05-18

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Keisuke SHIMIZU ,  Yoshihiro SHIOTSU ,  Hiroshi TAKASAKI

IPC: H01M2/12 ,  H01M2/10

CPC classification number: H01M2/1235 ,  H01M2/1077 ,  H01M2/1264

Abstract: A battery module includes: a plurality of battery cells and a case for housing the plurality of battery cells. The case has a plurality of through-holes which are provided to a wall part forming an outer face of the battery module and via which gas ejected from at least one of the plurality of battery cells is discharged in a dispersed manner.

公开(公告)号：US20230060668A1

公开(公告)日：2023-03-02

申请号：US17982069

申请日：2022-11-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinya MOTOKAWA ,  Daisuke KISHII ,  Keisuke SHIMIZU ,  Akira TAKANO

IPC: H01M50/578 ,  H01M50/20 ,  H01M50/30 ,  H01M50/50 ,  H01M50/502 ,  H01M50/572 ,  H01M50/342

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：US20190280260A1

公开(公告)日：2019-09-12

申请号：US16319227

申请日：2017-08-02

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Keisuke SHIMIZU

IPC: H01M2/10 ,  H01M10/655 ,  H01M10/643

Abstract: A Battery module includes a plurality of cylindrical batteries and battery a holder holding the cylindrical batteries arranged in at least one row. The battery holder includes a first side wall part, a second side wall part, and a low thermal-conductive member disposed between the side wall parts. The low thermal-conductive member includes a first partition walls interposed between respective the cylindrical batteries and the first side wall part, and the second partition walls interposed between the respective cylindrical batteries and the second side wall part. The first and the second partition walls are alternately arrayed along the row.

公开(公告)号：US20240234855A1

公开(公告)日：2024-07-11

申请号：US18611361

申请日：2024-03-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinya MOTOKAWA ,  Keisuke SHIMIZU ,  Chifumi MURAYAMA

IPC: H01M10/647 ,  H01M50/209 ,  H01M50/242 ,  H01M50/262 ,  H01M50/271 ,  H01M50/289 ,  H01M50/503 ,  H01M50/507 ,  H01M50/509 ,  H01M50/51 ,  H01M50/55 ,  H01M50/553

CPC classification number: H01M10/647 ,  H01M50/209 ,  H01M50/262 ,  H01M50/271 ,  H01M50/289 ,  H01M50/503 ,  H01M50/507 ,  H01M50/509 ,  H01M50/51 ,  H01M50/55 ,  H01M50/553 ,  H01M50/242

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：US20200099030A1

公开(公告)日：2020-03-26

申请号：US16470256

申请日：2017-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keisuke SHIMIZU ,  Shinya MOTOKAWA ,  Daisuke KISHII ,  Akira TAKANO

IPC: H01M2/12

Abstract: A battery module includes a plurality of cylindrical batteries that each include a safety valve surrounded by an annular breaking portion configured to break when internal pressure of each of the batteries exceeds a predetermined level. The battery module further includes an exhaust duct to guide gas emitted from the cylindrical battery to outside the module when safety valve is opened, and a gas direction regulator component disposed between the cylindrical batteries and the exhaust duct. The gas direction regulator component has a plurality of openings to expose the respective safety valves. Portions of the gas direction regulator component overhang areas overlapping the respective safety valves so as to cover an end of each safety valve opposite another end of each safety valve adjacent to an exit of the exhaust duct.