公开(公告)号：WO2017101819A1

公开(公告)日：2017-06-22

申请号：PCT/CN2016/110149

申请日：2016-12-15

Applicant: BYD COMPANY LIMITED

Inventor： FENG, Dali ,  SONG, Wei ,  HU, Jialing ,  JIN, Lina ,  SHAN, Jun ,  HE, Long

IPC: H01M2/16 ,  H01M10/052

CPC classification number: H01M2/1686 ,  H01M2/145 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/1666 ,  H01M10/052

Abstract: The present disclosure provides a composite film, a method of preparing the same and a lithium battery having the same. The composite film includes a porous separator and a fiber layer disposed on a surface of the porous separator and containing polyetherimide.

Abstract translation: 本发明提供复合膜，其制备方法和具有该复合膜的锂电池。 该复合膜包括多孔隔膜和设置在多孔隔膜表面上并含有聚醚酰亚胺的纤维层。

公开(公告)号：WO2016165633A1

公开(公告)日：2016-10-20

申请号：PCT/CN2016/079326

申请日：2016-04-14

Applicant: BYD COMPANY LIMITED

Inventor： JIN, Lina ,  HU, Jialing ,  SHAN, Jun ,  HE, Long

IPC: H01M2/16 ,  H01M2/14

CPC classification number: H01M2/145 ,  D01D5/0084 ,  D01F6/12 ,  D01F6/32 ,  H01M2/166 ,  H01M2/1666 ,  H01M2/1686 ,  H01M10/0525

Abstract: A method of preparing a polymer composite membrane is provided, and includes: providing a separator, providing a spinning solution comprising a mixed solvent and a spinning polymer dissolved in the mixed solvent, the mixed solvent comprising a first solvent having a boiling point ranging from about 150 ℃ to about 170 ℃, and a second solvent having a boiling point ranging from about 175 ℃ to about 220 ℃, a mass ratio of the first solvent and the second solvent ranging from about 7: 3 to about 3: 7; and electrostatic spinning on the separator with the spinning solution to obtain the polymer composite membrane having a separator and a fiber layer coated on the separator. A polymer composite membrane obtained from the method, a gel electrolyte including the polymer composite membrane and a lithium battery including the gel electrolyte are also provided.

Abstract translation: 提供一种制备聚合物复合膜的方法，包括：提供分离器，提供包含溶解在混合溶剂中的混合溶剂和纺丝聚合物的纺丝溶液，所述混合溶剂包含沸点范围为约 150℃至约170℃，沸点范围为约175℃至约220℃的第二溶剂，第一溶剂和第二溶剂的质量比为约7:3至约3:7; 并用纺丝溶液在隔膜上静电纺丝，得到具有隔离物的聚合物复合膜和涂布在隔膜上的纤维层。 还提供了由该方法获得的聚合物复合膜，包含聚合物复合膜的凝胶电解质和包含凝胶电解质的锂电池。

公开(公告)号：EP3493298A1

公开(公告)日：2019-06-05

申请号：EP17845207.4

申请日：2017-08-14

Applicant: BYD Company Limited

Inventor： HU, Jialing ,  SHAN, Jun ,  HU, Gang ,  HE, Long

IPC: H01M2/16 ,  H01M2/14 ,  H01M10/052

Abstract: The disclosure provides a polymer composite membrane, a method for preparing same, and a lithium-ion battery including same. The polymer composite membrane includes a polymer base membrane, where the polymer base membrane includes a first surface and a second surface disposed opposite to each other, and the polymer composite membrane further includes a first ceramic layer, a first heat-resistant fiber layer, and a first bonding layer disposed sequentially from inside out on the first surface of the polymer base membrane, where materials of the first heat-resistant fiber layer contain a first polymeric material and a second polymeric material.

公开(公告)号：EP3357109A1

公开(公告)日：2018-08-08

申请号：EP16874876.2

申请日：2016-12-15

Applicant: BYD Company Limited

Inventor： FENG, Dali ,  SONG, Wei ,  HU, Jialing ,  JIN, Lina ,  SHAN, Jun ,  HE, Long

IPC: H01M2/16 ,  H01M10/052

CPC classification number: H01M2/1686 ,  D01D5/0038 ,  D01F6/18 ,  D01F6/74 ,  D01F6/76 ,  H01M2/145 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1666 ,  H01M10/052 ,  H01M10/0525

Abstract: The present disclosure provides a composite film, a method of preparing the same and a lithium battery having the same. The composite film includes a porous separator and a fiber layer disposed on a surface of the porous separator and containing polyetherimide.

公开(公告)号：EP3357109B1

公开(公告)日：2020-02-05

申请号：EP16874876.2

申请日：2016-12-15

Applicant: BYD Company Limited

Inventor： FENG, Dali ,  SONG, Wei ,  HU, Jialing ,  JIN, Lina ,  SHAN, Jun ,  HE, Long

IPC: H01M2/14 ,  H01M2/16 ,  D01D5/00 ,  D01F6/74 ,  H01M10/052 ,  D01F6/18 ,  D01F6/76

公开(公告)号：EP3493297A1

公开(公告)日：2019-06-05

申请号：EP17845206.6

申请日：2017-08-14

Applicant: BYD Company Limited

Inventor： HU, Jialing ,  SHAN, Jun ,  WU, Jinxiang ,  HE, Long

IPC: H01M2/16 ,  H01M2/14 ,  H01M10/052

Abstract: The disclosure relates to the field of lithium-ion batteries, and discloses a polymer composite membrane and a method for preparing same. The disclosure further includes a lithium-ion battery for which the foregoing polymer composite membrane is used. The polymer composite membrane includes a porous base membrane and a heat-resistant fiber layer covering at least one side surface of the porous base membrane, where materials of the heat-resistant fiber layer contain a first polymeric material and a second polymeric material.

公开(公告)号：EP3490031A1

公开(公告)日：2019-05-29

申请号：EP17845205.8

申请日：2017-08-14

Applicant: BYD Company Limited

Inventor： HU, Jialing ,  LIU, Ronghua ,  SHAN, Jun ,  HE, Long

IPC: H01M2/14 ,  H01M2/16 ,  H01M10/052

Abstract: The disclosure relates to the field of lithium-ion batteries, and discloses a lithium-ion battery separator, a method for preparing same, and a lithium-ion battery. The lithium-ion battery separator includes: a porous basement membrane, and a heat-resistant layer covering at least one side surface of the porous basement membrane, where the heat-resistant layer contains a high-temperature-resistant polymer and inorganic nanometer particles; and the heat-resistant layer has a fiber-network shaped structure.