公开(公告)号：WO2007003085A1

公开(公告)日：2007-01-11

申请号：PCT/CN2006/000641

申请日：2006-04-11

Applicant: BYD COMPANY LIMITED ,  LUO, Mingjun ,  YOU, Zhen ,  LIU, Huiquan ,  HE, Yifan ,  ZHANG, Wei ,  LIAO, Kaiming

Inventor： LUO, Mingjun ,  YOU, Zhen ,  LIU, Huiquan ,  HE, Yifan ,  ZHANG, Wei ,  LIAO, Kaiming

IPC: B29C55/12 ,  B32B27/32 ,  B32B37/00

CPC classification number: B29C55/143 ,  B29K2023/00 ,  C08J5/18 ,  C08J2323/02

Abstract: A process for preparing a microporous polyolefin membrane comprises stretching a thick sheet comprising a polyolefin resin and a solvent to a thin membrane by a bi-oriented stretch, wherein said bi-oriented stretch is a sequential bi-oriented stretch comprising a machine direction stretch followed by a transverse direction stretch and the transverse direction stretch ratio is over 1.3 times of the machine direction stretch ratio. The microporous polyolefin membrane prepared by the process of the present invention possesses good ventilation property and high tensile strength.

Abstract translation: 一种制备微孔聚烯烃膜的方法包括通过双向拉伸将包含聚烯烃树脂和溶剂的厚片材拉伸到薄膜上，其中所述双向拉伸是连续双向拉伸，其包括随机方向拉伸 通过横向拉伸和横向拉伸比超过机器方向拉伸比的1.3倍。 通过本发明方法制备的微孔聚烯烃膜具有良好的通风性能和高拉伸强度。

公开(公告)号：WO2010069216A1

公开(公告)日：2010-06-24

申请号：PCT/CN2009/075011

申请日：2009-11-18

Applicant: BYD COMPANY LIMITED ,  LUO, Mingjun ,  YOU, Zhen ,  LIU, Huiquan

Inventor： LUO, Mingjun ,  YOU, Zhen ,  LIU, Huiquan

IPC: C08L23/06 ,  C08L23/04 ,  C08L23/02

CPC classification number: C08J5/18 ,  C08J2323/06 ,  C08K5/01 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2207/068 ,  C08L2207/32 ,  Y10T428/249953

Abstract: A microporous film comprises an ultra-high-molecular-weight polyolefin and a polyolefin resin. And a method of producing a microporous film comprising: preparing a first mixture by melting and mixing ultra-high-molecular-weight polyolefin with a solvent; preparing a second mixture by melting and mixing a polyolefin resin with the first mixture; forming the second mixture into a film; removing the solvent from the film to form the microporous film; and annealing the microporous films for setting.

Abstract translation: 微孔膜包含超高分子量聚烯烃和聚烯烃树脂。 以及一种生产微孔薄膜的方法，包括：通过将超高分子量聚烯烃与溶剂熔融混合来制备第一混合物; 通过熔融和混合聚烯烃树脂与第一混合物制备第二混合物; 将第二混合物形成膜; 从膜中除去溶剂以形成微孔膜; 并退火微孔膜进行凝固。

公开(公告)号：WO2012167728A1

公开(公告)日：2012-12-13

申请号：PCT/CN2012/076542

申请日：2012-06-06

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED ,  LIN, Miaoyun ,  YOU, Zhen ,  YU, Weicheng ,  LUO, Mingjun ,  LIU, Huiquan

Inventor： LIN, Miaoyun ,  YOU, Zhen ,  YU, Weicheng ,  LUO, Mingjun ,  LIU, Huiquan

IPC: H01M2/16

CPC classification number: H01M2/162 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

Abstract: A battery separator and a method for preparing the same are provided. The battery separator comprises: a substrate which is a polyvinylidene fluoride non-woven fabric; and a coating layer formed on each surface of the substrate, in which the material of the coating layer comprises an ultra-high molecular weight polyethylene and a linear low density polyethylene.

Abstract translation: 提供了一种电池隔板及其制备方法。 电池隔板包括：基材，其是聚偏二氟乙烯无纺织物; 以及形成在基板的每个表面上的涂层，其中涂层的材料包括超高分子量聚乙烯和线性低密度聚乙烯。

公开(公告)号：WO2012146126A1

公开(公告)日：2012-11-01

申请号：PCT/CN2012/073701

申请日：2012-04-10

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED ,  LIN, Miaoyun ,  YOU, Zhen ,  YU, Weicheng ,  LUO, Mingjun ,  LIU, Huiquan

Inventor： LIN, Miaoyun ,  YOU, Zhen ,  YU, Weicheng ,  LUO, Mingjun ,  LIU, Huiquan

IPC: C08J9/00 ,  C08J9/26 ,  C08L23/06

CPC classification number: C08L23/06 ,  B29C47/0004 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/0057 ,  B29C47/884 ,  B29C47/92 ,  B29C2947/92704

Abstract: A method for preparing a separator is provided. The method comprises steps of: (a) mixing an ultra-high molecular weight polyethylene with a first solvent to form a first mixture, and heating, stirring and filtrating the first mixture to obtain a pre-swollen ultra-high molecular weight polyethylene; (b) dissolving and plasticizing the pre-swollen ultra-high molecular weight polyethylene, a high density polyethylene and a second solvent in a twin screw extruder to obtain a plasticized melt; and (c) casting and cooling the plasticized melt to obtain a cast slab, and stretching, extracting and heat setting the cast slab to obtain the separator, in which the first solvent is a good solvent for a polyolefin, and the second solvent is a plasticizer.

Abstract translation: 提供了一种制备隔膜的方法。 该方法包括以下步骤：（a）将超高分子量聚乙烯与第一溶剂混合以形成第一混合物，加热，搅拌和过滤第一混合物以获得预膨胀的超高分子量聚乙烯; （b）在双螺杆挤出机中溶解和增塑预膨胀的超高分子量聚乙烯，高密度聚乙烯和第二溶剂，得到增塑的熔体; 和（c）铸造和冷却塑化熔体以获得铸造板坯，并且拉伸，提取和热固定铸造板坯以获得分离器，其中第一溶剂是聚烯烃的良溶剂，第二溶剂为 增塑剂。