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：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.