公开(公告)号：US09859535B2

公开(公告)日：2018-01-02

申请号：US14864439

申请日：2015-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsuhiro Iseri ,  Tomohiro Ueda ,  Yuya Asano ,  Haruhisa Yagi

IPC: H01M2/02

CPC classification number: H01M2/0275 ,  H01M2/0207 ,  H01M2/021 ,  H01M2/0287 ,  H01M2002/0205

Abstract: There is provided a pouch-type battery that includes an exterior packaging member having an accommodating space in which an electrode and an electrolyte are accommodated and which has a curved shape at least in a first direction. The exterior packaging member includes a first film member on which a cup section having the accommodating space inside is provided, a second film member disposed to face the first film member, and a sealing section around the cup section, with which the first and second film members are bonded to each other and the accommodating space is sealed. A top surface of the cup section of the first film member has a curved shape and is provided with a plurality of concave portions or convex portions, and the sealing section has a curved shape in the first direction and is configured of a flat surface on which neither concave portion nor convex portion is provided.

公开(公告)号：US10096803B2

公开(公告)日：2018-10-09

申请号：US15003353

申请日：2016-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsuhiro Iseri ,  Tomohiro Ueda ,  Yuya Asano ,  Haruhisa Yagi

IPC: H01M2/02 ,  H01M10/0585 ,  H01M10/04

Abstract: A thin pouch battery, which is used as a power source of a portable electronic apparatus, a portable electronic terminal, or the like, includes protrusions, into which an electrode group is inserted, formed in both a laminate film on the upper side and a laminate film on the lower side. Then, concentrically concave and convex wave shapes (concentric crest ridges or trough furrows) are formed on the top surface of each of the protrusions such that the protrusion can extend or shrink in any direction, or the protrusion has a side surface that is gradually inclined and a wave shape is formed on the side surface of the protrusion.

公开(公告)号：US20150207167A1

公开(公告)日：2015-07-23

申请号：US14421129

申请日：2013-09-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohiro Ueda ,  Yuya Asano ,  Toshifumi Nagino

IPC: H01M10/02 ,  H01M2/02

CPC classification number: H01M10/02 ,  H01M2/021 ,  H01M2/0212 ,  H01M2/0275 ,  H01M2/162 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0585 ,  H01M2220/30 ,  H01M2300/0085

Abstract: Provided is a thin battery including: an electrode assembly; and a flexible housing configured to house the electrode assembly. The electrode assembly includes: a positive electrode in sheet form; a negative electrode in sheet form; and an electrolyte layer interposed therebetween. The electrolyte layer includes: a non-aqueous electrolyte; and a non-woven fabric sheet configured to retain the non-aqueous electrolyte. The non-woven fabric sheet includes a conjugated fiber including at least two kinds of macromolecules conjugated together. The at least two kinds of macromolecules include: a first macromolecule without a cross-linked structure; and a second macromolecule with a cross-linked structure.

Abstract translation: 提供一种薄电池，包括：电极组件; 以及被配置为容纳所述电极组件的柔性壳体。 电极组件包括：片状的正电极; 片状负极; 和插入其间的电解质层。 电解质层包括：非水电解质; 以及构造成保持非水电解质的无纺布片。 无纺布片包括共轭纤维，其包含至少两种共轭的大分子。 所述至少两种大分子包括：没有交联结构的第一大分子; 和具有交联结构的第二大分子。

公开(公告)号：US12159974B2

公开(公告)日：2024-12-03

申请号：US16651945

申请日：2018-09-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohiro Ueda ,  Seiichi Aoki

IPC: H01M10/0587 ,  H01M50/417 ,  H01M50/426 ,  H01M50/457

Abstract: An aspect of the present invention relates to a cylindrical secondary battery including a bottomed cylindrical battery case having an opening, an electrode group, an electrolyte solution, the electrode group and the electrolyte solution being housed in the battery case, and a sealing member blocking the opening of the battery case. The electrode group includes a positive electrode, a negative electrode, and a separator placed between the positive electrode and the negative electrode and is formed by winding the positive electrode and the negative electrode with the separator therebetween. The negative electrode includes a negative electrode current collector and a negative electrode mix layer formed on at least one principal surface of the negative electrode current collector. The positive electrode includes a positive electrode current collector and a positive electrode mix layer formed on at least one principal surface of the positive electrode current collector. The separator includes an inner non-contact region which is located on the inner peripheral side of the electrode group and which has both surfaces that are in contact with none of the negative electrode mix layer and the positive electrode mix layer. The length of the inner non-contact region is 5% or more of the length of the separator in a winding direction of the electrode group. According to the present invention, a compact cylindrical battery with particularly excellent charge-discharge cycle characteristics in association with quick charge can be provided.

公开(公告)号：US10147914B2

公开(公告)日：2018-12-04

申请号：US15104862

申请日：2015-02-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohiro Ueda ,  Yuya Asano ,  Yoko Sano

IPC: H01M2/02 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0565 ,  H01M6/16 ,  H01M10/0566 ,  H01M10/0585 ,  H01M4/13 ,  H01M4/62

Abstract: A thin battery includes a sheet-like electrode assembly; a non-aqueous electrolyte with which the electrode assembly is impregnated; and a housing in a sealed manner. The electrode assembly includes a pair of first electrodes located at an outermost side of the electrode assembly, a second electrode interposed between the pair of first electrodes, and a separator disposed between each first electrode and the second electrode. The first electrode includes a first current collector sheet and a first active material layer attached to one surface of the first current collector sheet. The second electrode includes a second current collector sheet and second active material layers attached to both surfaces of the second current collector sheet. A content x of the non-aqueous electrolyte per unit area of the first active material layer is larger than a content y of the non-aqueous electrolyte per unit area of the second active material layer.