公开(公告)号：US20150243951A1

公开(公告)日：2015-08-27

申请号：US14708590

申请日：2015-05-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroto SUMIDA ,  Takahiro KUROKAWA ,  Takayoshi YAMAGUCHI ,  Takatoshi MITSUSHIMA

IPC: H01M2/16 ,  H01M10/0525

CPC classification number: H01M2/162 ,  B32B37/20 ,  B32B37/24 ,  H01M2/145 ,  H01M2/1673 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0525 ,  Y10T29/49115

Abstract: A battery includes a positive electrode, a negative electrode, a separator interposed therebetween, and an electrolyte. The separator includes a plurality of nanofibers and has a form of a sheet having a first surface and a second surface opposite thereto. When the average maximum fiber diameter of the nanofibers in the plane direction of the separator is compared between in vicinities of the first and second surfaces and at a center portion in the thickness direction of the separator, average maximum fiber diameters Ds1 and Ds2 of the nanofibers in the vicinity of the first and second surfaces are smaller than an average maximum fiber diameter Dc of the nanofibers at the center portion in the thickness direction of the separator.

Abstract translation: 电池包括正极，负极，插入其间的隔板和电解质。 分离器包括多个纳米纤维，并且具有片材的形式，其具有与其相对的第一表面和第二表面。 当在第一和第二表面的附近和隔板的厚度方向的中心部分比较分离器的平面方向上的纳米纤维的平均最大纤维直径时，纳米纤维的平均最大纤维直径Ds1和Ds2 在第一和第二表面附近小于隔板的厚度方向中心部分的纳米纤维的平均最大纤维直径Dc。

公开(公告)号：US20160258092A1

公开(公告)日：2016-09-08

申请号：US14938469

申请日：2015-11-11

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yuki YOSHIOKA ,  Takayoshi YAMAGUCHI ,  Takahiro KUROKAWA

IPC: D04H3/018 ,  G01N33/543

CPC classification number: D04H3/018 ,  D04H1/4391 ,  D04H1/728 ,  G01N33/521

Abstract: A nonwoven fabric includes a fiber including a first portion and a second portion connected to the first portion. A first fiber diameter of the first portion is smaller than a reference fiber diameter. A second fiber diameter of the second portion is equal to or greater than the reference fiber diameter. The reference fiber diameter is smaller than 1 μm. A ratio of a maximum fiber diameter of the second portion to a length of a linear line connecting both end portions of the second portion is from 1/10 to ⅓.

Abstract translation: 无纺布包括纤维，其包括连接到第一部分的第一部分和第二部分。 第一部分的第一纤维直径小于参考纤维直径。 第二部分的第二纤维直径等于或大于参考纤维直径。 参考纤维直径小于1μm。 第二部分的最大纤维直径与连接第二部分的两个端部的直线的长度之比为1/10至1/3。

公开(公告)号：US20160199766A1

公开(公告)日：2016-07-14

申请号：US14870606

申请日：2015-09-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Koji MOTOMURA ,  Takahiko MURATA ,  Hiroto SUMIDA ,  Takahiro KUROKAWA ,  Takatoshi MITSUSHIMA

IPC: B01D39/18 ,  B32B5/24 ,  B32B5/12 ,  B32B5/02 ,  B32B5/26

CPC classification number: B01D39/18 ,  B01D39/1623 ,  B01D2239/065 ,  B01D2239/1233 ,  B32B5/022 ,  B32B5/08 ,  B32B5/12 ,  B32B5/22 ,  B32B5/245 ,  B32B5/26 ,  B32B2250/20 ,  B32B2262/02 ,  B32B2262/0223 ,  B32B2262/0238 ,  B32B2262/0246 ,  B32B2262/0253 ,  B32B2262/0261 ,  B32B2262/0276 ,  B32B2262/0292 ,  B32B2262/062 ,  B32B2262/101 ,  B32B2262/14 ,  B32B2305/026 ,  B32B2305/28 ,  B32B2307/718

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric that comprises first fibers, and a second nonwoven fabric that comprises second fibers. The second nonwoven fabric is laminated on the first nonwoven fabric. An average fiber diameter D1 of the first fibers and an average fiber diameter D2 of the second fibers satisfy a relation of D1>D2. In viewed from a side of a principal surface of the second nonwoven fabric being not opposed to the first nonwoven fabric, a total area of first portions of the second fibers superimposed on the first fibers and existing on the nearer side than the first fibers is larger than a total area of second portions of the second fibers existing and superimposed on voids S of the first nonwoven fabric formed of the first fibers.

Abstract translation: 层压无纺布包括第一无纺布，其包含第一纤维，第二无纺布包括第二纤维。 将第二无纺布层叠在第一无纺布上。 第一纤维的平均纤维直径D1和第二纤维的平均纤维直径D2满足D1> D2的关系。 从第二无纺布的主面的与第一无纺布相对的一侧观察，叠加在第一纤维上并存在于比第一纤维更靠近的第二纤维的第一部分的总面积较大 比第二纤维的第二部分的总面积存在并叠加在由第一纤维形成的第一无纺布的空隙S上。