公开(公告)号：US20160380250A1

公开(公告)日：2016-12-29

申请号：US15039688

申请日：2014-11-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroya UMEYAMA ,  Tatsuya HASHIMOTO ,  Yusuke FUKUMOTO ,  Keisuke OHARA ,  Kouichi TORIYAMA

IPC: H01M2/16

CPC classification number: H01M2/1686 ,  H01M2/1653 ,  H01M2/166 ,  H01M10/052

Abstract: A separator 1 for a nonaqueous electrolyte secondary battery, includes a resin-made substrate (2) and a porous heat resistance layer (4) disposed on the substrate. The porous heat resistance layer includes an inorganic filler (6) and hollow bodies (7). The hollow body includes a shell portion and a hollow portion. The shell portion is formed of an acryl resin. The hollow portion is formed inside the shell portion. An opening portion extending through the shell portion to spatially interconnect the hollow portion and the outside of the shell portion is formed in the shell portion.

Abstract translation: 非水电解质二次电池用隔膜1包括设置在基板上的树脂制基板（2）和多孔耐热层（4）。 多孔耐热层包括无机填料（6）和中空体（7）。 中空体包括壳部和中空部。 外壳部分由丙烯酸树脂形成。 中空部形成在壳部内。 在外壳部分中形成有延伸穿过外壳部分以将空心部分和外壳部分的空间相互连接的开口部分。

公开(公告)号：US20170047569A1

公开(公告)日：2017-02-16

申请号：US15304654

申请日：2015-04-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideyuki SAKA ,  Tatsuya HASHIMOTO ,  Yusuke FUKUMOTO ,  Keisuke OHARA ,  Kouichi TORIYAMA

IPC: H01M2/16 ,  H01M2/34 ,  H01M10/42 ,  H01M10/0525 ,  H01M10/0587

Abstract: A nonaqueous electrolyte secondary battery (100) includes a positive electrode (30), a negative electrode (40), a separator (50), a nonaqueous electrolytic solution, and a battery case (10). The positive electrode includes a positive electrode current collector (32) and a positive electrode active material layer (34). The separator includes a separator substrate (52) and a heat resistance layer (54). The separator substrate has an opposite surface opposite the positive electrode active material layer. The heat resistance layer constitutes at least a part of the opposite surface and contains a heat-resistant filler and a binder. The positive electrode active material layer has an adjacent region (X). The heat resistance layer has an opposite region (Y) opposite at least an end portion of the adjacent region. The end portion of the adjacent region is adjacent to a positive electrode current collector exposure portion (33). The opposite region contains at least a calcium salt of carboxymethyl cellulose.

Abstract translation: 非水电解质二次电池（100）包括正极（30），负极（40），隔膜（50），非水电解液和电池壳体（10）。 正极包括正极集电体（32）和正极活性物质层（34）。 隔板包括隔板基板（52）和耐热层（54）。 隔膜基板具有与正极活性物质层相反的相对面。 耐热层构成相对表面的至少一部分并且包含耐热填料和粘合剂。 正极活性物质层具有相邻区域（X）。 耐热层具有至少相邻区域的端部相对的相对区域（Y）。 相邻区域的端部与正极集电体曝光部分33相邻。 相对区域至少含有羧甲基纤维素的钙盐。