البحث في مجموعات البراءات الوطنية والدولية

1. (WO2018050067) HEAT-RESISTANT MULTI-LAYER COMPOSITE LITHIUM-ION BATTERY SEPARATOR, AND COATING DEVICE AND MANUFACTURING METHOD FOR SAME

Pub. No.:    WO/2018/050067    International Application No.:    PCT/CN2017/101564
Publication Date: Fri Mar 23 00:59:59 CET 2018 International Filing Date: Thu Sep 14 01:59:59 CEST 2017
IPC: H01M 2/14
H01M 2/16
H01M 10/0525
Applicants: HEBEI GELLEC NEW ENERGY MATERIAL SCIENCE&TECHNOLOGY CO., LTD.
河北金力新能源科技股份有限公司
Inventors: XU, Feng
徐锋
YUAN, Haichao
袁海朝
DENG, Yunfei
邓云飞
MA, Wenxian
马文献
Title: HEAT-RESISTANT MULTI-LAYER COMPOSITE LITHIUM-ION BATTERY SEPARATOR, AND COATING DEVICE AND MANUFACTURING METHOD FOR SAME
Abstract:
A heat-resistant multi-layer composite lithium-ion battery separator, and coating device and manufacturing method for same. The battery separator comprises a base membrane (12) having two end faces provided with a coating paste, and the end faces of the base membrane (12) are both adhered with a composite layer via the coating paste. The composite layer comprises one, two, or multiple composite films (13). The composite films (13) are adhered and fixed via the coating paste. The coating device is employed during the manufacturing, and comprises a base membrane uncoiling reel (1), a coating roller (2), a composite film uncoiling mechanism, a heating and drying mechanism, and a coiling reel (6). The coating roller (2) is arranged in a one-to-one correspondence to the composite film uncoiling mechanism, and two sets of the coating roller and the composite film uncoiling mechanism are provided on two sides of the base membrane (12). The composite film uncoiling mechanism comprises a composite film uncoiling reel (3) and a pressing shaft (4), and the composite films (13) are attached to the base membrane (12) after passing through the pressing shaft (4) to form a multi-layer composite separator, and then heated, dried, and shaped to obtain a separator final product. The separator final product has superior heat-resistant stability and a heat-resistant rate of contraction.