公开(公告)号：US11258124B2

公开(公告)日：2022-02-22

申请号：US16464042

申请日：2017-11-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Katsutoshi Takeda

IPC: H01M50/124 ,  H01M10/0585 ,  H01M50/116

Abstract: A nonaqueous electrolyte secondary battery includes: an electrode assembly including a separator and positive and negative electrodes stacked through the separator; a covering member disposed on the outer circumferential surface of the electrode assembly; and a nonaqueous electrolyte. The covering member has a multilayer structure including a stretchable resin layer and a heat absorbing layer containing a heat absorbing material.

公开(公告)号：US11476532B2

公开(公告)日：2022-10-18

申请号：US16975806

申请日：2019-02-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Katsutoshi Takeda

IPC: H01M10/6555 ,  H01M10/657 ,  H01M10/658 ,  H01M50/20 ,  H01M10/052 ,  H01M50/204

Abstract: A battery module includes a plurality of batteries and at least one spacer disposed between adjacent batteries among the plurality of batteries. The spacer includes at least one reflection layer which reflects at least 60% of an electromagnetic wave having a wavelength of 0.7 to 3 μm. The at least one reflection layer faces to one of the adjacent batteries.

公开(公告)号：US11189886B2

公开(公告)日：2021-11-30

申请号：US16078318

申请日：2017-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroki Watanabe ,  Hitoshi Maeda ,  Katsutoshi Takeda

IPC: H01M10/0583 ,  H01M50/463 ,  H01M50/40 ,  H01M50/116 ,  H01M10/04

Abstract: A stack-type nonaqueous electrolyte secondary battery includes an electrode stack. The electrode stack is housed in an exterior body and includes a plurality of positive electrodes, a plurality of negative electrodes, and a separator. The positive electrodes and the negative electrodes are alternately arranged. The separator includes a fanfold portion including a plurality of intervening elements interposed between the positive electrodes and the negative electrodes. The separator includes a wrapper portion at a portion continuous with the fanfold portion. The wrapper portion extends out of the electrode stack and is disposed to cover at least part of a periphery of the electrode stack.

公开(公告)号：US20190020009A1

公开(公告)日：2019-01-17

申请号：US16078318

申请日：2017-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroki Watanabe ,  Hitoshi Maeda ,  Katsutoshi Takeda

IPC: H01M2/18 ,  H01M10/0583 ,  H01M10/04 ,  H01M2/02

Abstract: A stack-type nonaqueous electrolyte secondary battery includes an electrode stack. The electrode stack is housed in an exterior body and includes a plurality of positive electrodes, a plurality of negative electrodes, and a separator. The positive electrodes and the negative electrodes are alternately arranged. The separator includes a fanfold portion including a plurality of intervening elements interposed between the positive electrodes and the negative electrodes. The separator includes a wrapper portion at a portion continuous with the fanfold portion. The wrapper portion extends out of the electrode stack and is disposed to cover at least part of a periphery of the electrode stack.

公开(公告)号：US20190386261A1

公开(公告)日：2019-12-19

申请号：US16464042

申请日：2017-11-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Katsutoshi Takeda

IPC: H01M2/02 ,  H01M10/0585

Abstract: A nonaqueous electrolyte secondary battery includes: an electrode assembly including a separator and positive and negative electrodes stacked through the separator; a covering member disposed on the outer circumferential surface of the electrode assembly; and a nonaqueous electrolyte. The covering member has a multilayer structure including a stretchable resin layer and a heat absorbing layer containing a heat absorbing material.