Abstract:
본 발명은, 고분자 수지 및 가소제를 포함하는 조성물을 용융혼련하고 압출하여 냉각 고형화된 시트를 형성하고, 상기 고형화된 시트를 길이방향으로 T 1 온도에서 연신 후 폭방향으로 T 2 온도에서 연신하고, 상기 연신된 시트에서 가소제를 추출하는 것을 포함하되, T 2 -T 1 ≥ 20 ℃인, 다공성 고분자 수지 분리막의 제조 방법, 상기 제조 방법에 의해 제조된 다공성 고분자 수지 분리막, 및 상기 분리막을 포함하는 전기 화학 전지에 관한 것이다.
Abstract:
본 발명은 내열성이 우수하면서도 전극과의 접착력 또한 우수하여 전지에 사용시 전지의 형태 보존성 및 안정성을 향상시키는 분리막에 관한 것이다. 구체적으로, 본 발명은 다공성 기재 필름; 상기 다공성 기재 필름의 일면에 형성되고 무기 입자를 함유하는 제1 코팅층; 및 상기 다공성 기재 필름의 타면에 형성되고 스타이렌-부타디엔 고무, 카르복시 메틸 셀룰로오스, 폴리 부틸 아크릴레이트 및 에틸렌 바이닐 아세테이트로 이루어진 군으로부터 선택된 단독 또는 이들의 혼합물을 함유하는 제2 코팅층을 포함하며, 상기 제2 코팅층과 전지의 음극과의 접착력이 20 gf/cm 이상인, 다공성 분리막에 관한 것이다.
Abstract:
The present invention relates to a method for manufacturing a separator which reduces a melting shrinkage rate and improves the tensile strength of the separator by controlling a separator drawing process in the process of manufacturing the separator. Also, the present invention relates to a separator which has excellent thermal stability and winding workability by maintaining the melting shrinkage rate in a low level while increasing the tensile strength of the separator. Also, the present invention relates to an electrochemical battery which has improved stability by using a separator which has the high tensile strength and the low melting shrinkage rate.
Abstract:
The present invention relates to a method for manufacturing a separator having the excellent uniformity of a physical property by controlling the diluent extraction process and driving process in manufacturing a separator. The present invention forms a sheet containing the diluent and polyolefin based resin. The diluent is extracted from the sheet by using an extraction device. The extracted sheet is dried by using a drying device in an inlet to manufacture a separator. The present invention relates to a method for manufacturing a polyolefin based porous separator where the shortest distance between the outlet of the extraction and the inlet of the drying sheet is 100 mm or less. The present invention relates to a separator manufacture by the manufacturing method and an electrochemical battery using the same.
Abstract:
The present invention relates to coating agent composition having excellent heat resistance and drying process properties which is formed by dissolving high heat-resistant polyamide in a low boiling point solvent. Particularly, the present invention relates to coating agent composition which includes water and alcohol and is formed by dissolving polyamide in a low boiling point solvent of 100 °C or less. The present invention relates to a separator which improves heat resistance by performing a coating process on one or both sides of a polyolefin based base film by using the coating agent composition including the polyamide and an electrochemical battery which improves thermal stability by using the separator.
Abstract:
PURPOSE: A membrane is provided to be easily dissolved in a low boiling temperature solvent, to have an excellent heat resistance and to suppress the thermal shrinkage by using swelling organic binder and compatible soluble polyimide as organic binder components of a coating agent. CONSTITUTION: A membrane includes an organic and inorganic mixture coating layer containing soluble polyimide and swelling organic binder on one side or both sides of a polyolefin base film. The swelling organic binder is polyvinylidene fluoride-hexfluoropropylene copolymer. The coating layer further includes inorganic particles. The inorganic particles are at least one selected from the group consisting of Al2O3, SiO2, B2O3, Ga2O3, TiO2 and SnO2.
Abstract translation:目的:提供一种易于溶解在低沸点溶剂中的膜,具有优异的耐热性,通过使用溶胀性有机粘合剂和相容性可溶性聚酰亚胺作为涂布剂的有机粘合剂成分来抑制热收缩。 构成:膜包括在聚烯烃基膜的一侧或两侧上含有可溶性聚酰亚胺和溶胀有机粘合剂的有机和无机混合物涂层。 溶胀有机粘合剂是聚偏二氟乙烯 - 六氟丙烯共聚物。 涂层还包括无机颗粒。 无机颗粒是选自Al 2 O 3,SiO 2,B 2 O 3,Ga 2 O 3,TiO 2和SnO 2中的至少一种。