公开(公告)号：US20150280197A1

公开(公告)日：2015-10-01

申请号：US14593656

申请日：2015-01-09

申请人： Dongguan Amperex Technology Limited

发明人： Junhua ZHAO ,  Shengwu ZHANG ,  Yongle CHEN ,  Hui JIANG ,  Chaoyu GUAN ,  Xiaoyan LI ,  Wenqiang CHENG

IPC分类号： H01M2/16

CPC分类号： H01M2/1686 ,  H01M2/1653 ,  H01M2/166 ,  H01M10/0525

摘要： The present disclosure provides a composite porous separator and an electrochemical device. The composite porous separator comprises: a composite porous substrate; and a composite porous coating coated on at least one surface of the composite porous substrate. The composite porous substrate comprises a filler A and a polymer matrix, the filler A is at least one selected from a group consisting of inorganic particles and organic particles; the composite porous coating comprises a filler B and an adhesive, the filler B is at least one selected from a group consisting of inorganic particles and organic particles. The electrochemical device has the above composite porous separator. The present disclosure improves the thermal stability of the composite porous separator, and improves the anti-deformation capability and the capacity retention rate of the electrochemical device, and further improves the cycle performance and the low temperature dynamic performance of the electrochemical device.

摘要翻译： 本公开提供了一种复合多孔分离器和电化学装置。 复合多孔隔板包括：复合多孔基材; 以及涂覆在所述复合多孔基材的至少一个表面上的复合多孔涂层。 复合多孔基材包括填料A和聚合物基质，填料A为选自无机颗粒和有机颗粒中的至少一种; 复合多孔涂层包括填料B和粘合剂，填料B是选自无机颗粒和有机颗粒中的至少一种。 电化学装置具有上述复合多孔分离器。 本发明改善了复合多孔隔板的热稳定性，提高了电化学装置的抗变形能力和容量保持率，进一步提高了电化学装置的循环性能和低温动态性能。