公开(公告)号：US20240356158A1

公开(公告)日：2024-10-24

申请号：US18759062

申请日：2024-06-28

Applicant: SHENZHEN SENIOR TECHNOLOGY MATERIAL CO., LTD.

Inventor： Yanjie WANG ,  Zelin CHEN ,  Hua SUN ,  Jianqiang SHEN ,  Bin TAN

IPC: H01M50/446 ,  C08K3/22 ,  C08K3/32 ,  C08K7/02 ,  C09D129/04 ,  C09D133/02 ,  H01M50/403 ,  H01M50/42 ,  H01M50/434 ,  H01M50/449

CPC classification number: H01M50/446 ,  C09D129/04 ,  C09D133/02 ,  H01M50/403 ,  H01M50/42 ,  H01M50/434 ,  H01M50/449 ,  C08K2003/2227 ,  C08K2003/325 ,  C08K7/02 ,  C08K2201/003 ,  C08K2201/005

Abstract: The present disclosure provides a coating for battery separator, a preparation method thereof, a battery separator and a battery, where a coating slurry of the coating for the battery separator includes a dispersion medium, a nanomaterial, and a polymer containing polar functional groups; the coating has a surface pore size of 10 nm-30 nm, and a surface roughness of 200 nm-500 nm, and the coating has a hydroxyl content of 100 mg KOH/g-4000 mg KOH/g. The coating for battery separator, the preparation method thereof, the battery separator and the battery can solve a problem of deformation of battery separators due to the induction of electrolyte solutions.

公开(公告)号：US20250132459A1

公开(公告)日：2025-04-24

申请号：US18999115

申请日：2024-12-23

Applicant: Shenzhen Senior Technology Material Co., Ltd. ,  Jiangsu Senior New Material Technology Co., Ltd.

Inventor： Yanjie WANG ,  Xuemei YANG ,  Bin TAN ,  Zhijie WU

IPC: H01M50/403 ,  H01M10/0525 ,  H01M50/417 ,  H01M50/429 ,  H01M50/431 ,  H01M50/434 ,  H01M50/449 ,  H01M50/451 ,  H01M50/489

Abstract: Disclosed are a battery, and a battery diaphragm and a manufacturing method therefor, which belong to the field of batteries. The battery diaphragm has a composite structure constituted by a first member and a second member. The diaphragm comprises: the first element is manufactured from a modification material provided to improve the thermal stability of the diaphragm, the first element being a stack of nanowires distributed in layers; and the second element is manufactured from a base material provided to serve as the body of the diaphragm, the first element being loaded on the second element and supported by the second element. The battery diaphragm has a good thermal stability.

公开(公告)号：US20240396169A1

公开(公告)日：2024-11-28

申请号：US18790966

申请日：2024-07-31

Applicant: SHENZHEN SENIOR TECHNOLOGY MATERIAL CO., LTD. ,  SENIOR (NANTONG) NEW MATERIAL TECHNOLOGY CO., LTD.

Inventor： Yanjie WANG ,  Zelin CHEN ,  Zhiheng LIAO ,  Bin TAN ,  Huizhen HUANG ,  Rui LIU ,  Xiaomin ZHANG

IPC: H01M50/451 ,  H01M10/052 ,  H01M50/403 ,  H01M50/434 ,  H01M50/443

Abstract: The present application provides a coated separator, a preparation method for coated separator, and a battery. The coated separator includes a base film and a coating layer structure arranged on the base film; the coating layer structure includes multiple material layers and includes one-dimensional nanomaterials and ceramic particles; and an average length of the one-dimensional nanomaterials in each material layer decreases layer by layer in a direction away from the base film.

公开(公告)号：US20210280947A1

公开(公告)日：2021-09-09

申请号：US17255809

申请日：2019-05-23

Applicant: SHENZHEN SENIOR TECHNOLOGY MATERIAL CO., LTD. ,  JIANGSU SENIOR NEW MATERIAL TECHNOLOGY CO., LTD

Inventor： Yanjie WANG ,  Zhijie WU ,  Bin TAN ,  Li CHEN

IPC: H01M50/454 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/491 ,  H01M50/417

Abstract: Disclosed are a coating liquid of a lithium ion battery separator, a lithium ion battery separator, and a lithium ion battery. The raw materials of the coating liquid include a nanowire, ceramic powder, an adhesive, and a solvent; the nanowire is at least one of nano cellulose, carbon nanotube, silver nanowire, boron carbide nanowire, copper hydroxide nanowire, aramid nano fiber, silicon monoxide nanowire, and hydroxyapatite nanowire; the diameter of the nanowire is 1-100 nm, and the length is 0.1-100 μm. The lithium ion battery separator consisting of a separator body and a coating layer loaded on the separator body is obtained by applying the coating liquid that is obtained by mixing the nanowire, the ceramic powder, the adhesive and the like onto the surface of the separator body, and performing curing; the lithium ion battery has good thermal stability and puncture resistance, etc.