公开(公告)号：US11223090B2

公开(公告)日：2022-01-11

申请号：US16328993

申请日：2017-08-14

Applicant: BYD COMPANY LIMITED

Inventor： Jialing Hu ,  Jun Shan ,  Gang Hu ,  Long He

IPC: H01M50/449 ,  B32B27/12 ,  B32B9/00 ,  B32B7/12 ,  B32B7/00 ,  H01M50/44 ,  H01M50/411 ,  H01M50/431 ,  H01M50/46 ,  B32B27/00 ,  H01M10/052 ,  H01M50/403 ,  H01M10/0525

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：US11264674B2

公开(公告)日：2022-03-01

申请号：US16328601

申请日：2017-08-14

Applicant: BYD Company Limited

Inventor： Jialing Hu ,  Jun Shan ,  Jinxiang Wu ,  Long He

IPC: H01M50/417 ,  H01M50/454 ,  H01M50/426 ,  H01M50/491 ,  H01M50/434 ,  H01M50/42

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：US20150171466A1

公开(公告)日：2015-06-18

申请号：US14414868

申请日：2013-08-18

Applicant: BYD Company Limited

Inventor： Jun Shan ,  Ronghua Liu ,  Lina Jin

IPC: H01M10/0565 ,  H01M10/058

CPC classification number: H01M10/0565 ,  C08F220/18 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/0082 ,  Y02E60/122 ,  Y10T29/4911

Abstract: A gel polymer composite electrolyte, a polymer lithium ion battery comprising the gel polymer composite electrolyte and methods of preparing the polymer lithium ion battery are provided. The gel polymer composite electrolyte is formed by swelling after a polymer membrane absorbs an electrolyte, wherein the polymer membrane is formed by thermocuring a polymer mixture comprising an acrylic emulsion, water and ammonia water, and the acrylic emulsion has a glass transition temperature ranging from about −30° C. to about 50° C.

Abstract translation: 提供了一种凝胶聚合物复合电解质，包含凝胶聚合物复合电解质的聚合物锂离子电池和制备聚合物锂离子电池的方法。 凝胶聚合物复合电解质是在聚合物膜吸收电解质之后通过溶胀形成的，其中聚合物膜是通过热固化包含丙烯酸乳液，水和氨水的聚合物混合物形成的，丙烯酸乳液的玻璃化转变温度范围为约 -30℃至约50℃

公开(公告)号：US11824225B2

公开(公告)日：2023-11-21

申请号：US16967398

申请日：2019-01-31

Applicant: BYD COMPANY LIMITED

Inventor： Lina Jin ,  Bowen Xuan ,  Xiaodong Cao ,  Jinxiang Wu ,  Jun Shan ,  Gang Hu ,  Long He

IPC: H01M50/414 ,  H01M50/403 ,  H01M50/457 ,  H01M50/446 ,  H01M50/451 ,  H01M50/434 ,  H01M50/489 ,  H01M50/443 ,  H01M50/426 ,  H01M50/42 ,  H01M10/0525

CPC classification number: H01M50/414 ,  H01M50/403 ,  H01M50/42 ,  H01M50/426 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489 ,  H01M10/0525

Abstract: The present disclosure provides a polymer separator and preparation method thereof, and a lithium-ion battery including the polymer separator and preparation method thereof. The polymer separator includes a porous substrate, a hydrophilic blocking layer, and a porous polar polymer bonding layer. The hydrophilic blocking layer is disposed between the porous substrate and the porous polar polymer bonding layer. Pore walls in the porous polar polymer bonding layer are provided with node structures.

公开(公告)号：US11133559B2

公开(公告)日：2021-09-28

申请号：US16474992

申请日：2017-12-01

Applicant: BYD COMPANY LIMITED

Inventor： Jialing Hu ,  Jun Shan ,  Long He

IPC: H01M50/44 ,  B01D69/14 ,  B01D71/34 ,  B01D71/40 ,  H01M10/0525 ,  H01M50/411 ,  H01M50/403

Abstract: A polymer composite membrane, a method for fabricating same, and a lithium-ion battery including same are provided. The polymer composite membrane includes a porous base membrane and a heat-resistant layer covering at least one side surface of the porous base membrane, the heat-resistant layer includes a plurality of heat-resistant sub-layers sequentially stacked, and pore-blocking temperatures of the heat-resistant sub-layers are sequentially increased from inside to outside; each of the heat-resistant sub-layers includes at least one of a first heat-resistant polymer material and a second heat-resistant polymer material, and each of the heat-resistant sub-layers is separately configured as a fiber network structure; the melting point of the first heat-resistant polymer material is not less than 200° C.; and the melting point of the second heat-resistant polymer material is not less than 100° C.

公开(公告)号：US09647293B2

公开(公告)日：2017-05-09

申请号：US14414868

申请日：2013-08-28

Applicant: BYD Company Limited

Inventor： Jun Shan ,  Ronghua Liu ,  Lina Jin

IPC: H01M6/14 ,  H01M10/0565 ,  H01M10/0525 ,  H01M10/058 ,  C08F220/18

CPC classification number: H01M10/0565 ,  C08F220/18 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/0082 ,  Y02E60/122 ,  Y10T29/4911

Abstract: A gel polymer composite electrolyte, a polymer lithium ion battery comprising the gel polymer composite electrolyte and methods of preparing the polymer lithium ion battery are provided. The gel polymer composite electrolyte is formed by swelling after a polymer membrane absorbs an electrolyte, wherein the polymer membrane is formed by thermocuring a polymer mixture comprising an acrylic emulsion, water and ammonia water, and the acrylic emulsion has a glass transition temperature ranging from about −30° C. to about 50° C.