公开(公告)号：EP3181622A1

公开(公告)日：2017-06-21

申请号：EP15831325

申请日：2015-08-07

申请人： TORAY BATTERY SEPARATOR FILM

发明人： SUGATA MASAMI ,  TOYOTA NAOKI

IPC分类号： C08J9/28 ,  H01M2/16 ,  H01M10/0566

CPC分类号： H01M2/1653 ,  C08J5/18 ,  C08J9/28 ,  C08J2323/06 ,  C08J2423/06 ,  H01M2/145 ,  H01M2/16 ,  H01M10/0566 ,  H01M2300/0017

摘要： The present invention provides a microporous membrane having an excellent balance of temperature characteristics, shrinkage characteristics, permeability, and strength, and thereby realizes a separator for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery, having excellent performance and excellent safety. A polyolefin microporous membrane having; a temperature difference not less than 7.2°C between a shutdown shrinkage temperature and a maximum shrinkage temperature in a TD measured by TMA; a shrinkage rate difference less than 25% between a shutdown shrinkage rate and a maximum shrinkage rate in the TD; a pin puncture strength at a membrane thickness of 16 µm being not less than 400 gf; and a ratio of pin puncture strength to air permeation resistance at a membrane thickness of 16 µm being from 2.0 to 4.0 (gf/(sec/100 cc)).

摘要翻译： 本发明提供了具有温度特性，收缩特性，渗透性和强度的平衡优异的微孔膜，从而实现了对非水电解质二次电池和非水电解质二次电池用隔板，具有优异的性能和出色的 安全性。 具有聚烯烃微多孔膜; 的温度差不小于7.2°的关闭收缩温度和在通过TMA测得的TD最大收缩温度之间℃; 的收缩率差的关闭收缩率和在TD最大收缩率之间小于25％; 在16微米是不小于400克力的膜厚度的针刺穿强度; 并以16微米的膜厚度的戳穿强度以耐气透性的比率为从2.0到4.0（克力/（秒/ 100cc））。

公开(公告)号：EP3056336A4

公开(公告)日：2016-08-17

申请号：EP15768474

申请日：2015-03-10

申请人： TORAY BATTERY SEPARATOR FILM

发明人： SUGATA MASAMI ,  MATANO KOICHI ,  MIZUNO NAOKI ,  HARUMOTO KOSUKE

IPC分类号： B32B3/30 ,  B32B27/32 ,  H01M2/14 ,  H01M2/16 ,  H01M10/052

CPC分类号： H01M2/348 ,  B29C47/0057 ,  B29C47/065 ,  B29C55/143 ,  B29K2023/065 ,  B29K2023/0683 ,  B29L2031/3468 ,  B32B3/30 ,  B32B27/32 ,  B32B2457/10 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0525 ,  H01M2200/10

摘要： Considering that battery separators will require further thinner materials and lower costs in the future, a battery separator of the present invention, in which multi-layer polyolefin porous membrane with exceptionally high peel strength against a modified porous layer, suitable for high-speed processing during slit process and battery assembly process, and suitable for laminating on a multi-layer modified porous layer, and a multi-layer modified porous layer are laminated, is provided. A multi-layer polyolefin porous membrane comprising at least two or more layers, the multi-layer polyolefin porous membrane having a shut-down temperature in a range of 128 to 135°C, a rate of increase in air permeation resistance from 30°C to 105°C scaled to 20 µm thickness less than 1.5 sec/100 cc Air/°C, and a thickness not more than 20 µm.

公开(公告)号：EP3098256A4

公开(公告)日：2017-03-29

申请号：EP15799174

申请日：2015-05-28

申请人： TORAY BATTERY SEPARATOR FILM

发明人： MATSUMOTO TOMIKO ,  SUGATA MASAMI ,  KONO KOICHI

IPC分类号： C08J9/28 ,  B01D67/00 ,  B01D71/26 ,  B29C55/14 ,  C08J5/18 ,  C08L23/06 ,  H01M2/14 ,  H01M2/16 ,  H01M10/0566

CPC分类号： H01M2/1653 ,  B01D67/002 ,  B01D67/0027 ,  B01D69/02 ,  B01D71/26 ,  B01D2325/20 ,  B01D2325/22 ,  B01D2325/24 ,  B01D2325/34 ,  B29C47/0021 ,  B29C47/0057 ,  B29C47/16 ,  B29C47/40 ,  B29C47/6087 ,  B29C47/8845 ,  B29C55/005 ,  B29C55/143 ,  B29K2023/0683 ,  B29K2105/041 ,  B29K2995/0065 ,  B29L2031/3468 ,  C08J5/18 ,  C08J9/28 ,  C08J2201/0482 ,  C08J2205/044 ,  C08J2323/06 ,  C08J2423/06 ,  C08L23/06 ,  C08L2207/068 ,  H01M2/145

摘要： The present invention relates to a polyolefin microporous membrane having an air permeability normalized to a thickness of 16 µm of from 100 to 220 sec/100 cc, a pin puncture strength normalized to a thickness of 16 µm of not less than 550 gf, and a crystallization half time t 1/2 of from 10 to 35 minutes when subjected to isothermal crystallization at 117°C; a separator for a battery using the same; and a production method thereof. The polyolefin microporous membrane of the present invention has excellent pin puncture strength and air permeability, suppresses curling, and has an excellent appearance without wrinkles or winding deviation when formed into a roll.

摘要翻译： 本发明涉及一种聚烯烃微多孔膜，其具有通过归一化至厚度为16μm的空气透过率为100至220秒/ 100cc的空气渗透性，标准化为16μm厚度不小于550gf的针刺穿强度，以及 在117℃进行等温结晶时，结晶半时间t 1/2为10〜35分钟; 用于使用其的电池的隔板; 及其制造方法。 本发明的聚烯烃微多孔膜具有优异的穿刺强度和透气性，抑制卷曲，并且当形成辊时具有优异的外观而没有褶皱或卷绕偏差。