公开(公告)号：US20240047756A1

公开(公告)日：2024-02-08

申请号：US18489849

申请日：2023-10-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaolong Li ,  Xinxin Zhang ,  Wenguang Lin ,  Xiaoxia Chen ,  Ben Liu ,  Shikang Yao ,  Jiadian Lan

IPC: H01M10/0569 ,  H01M10/625 ,  H01M10/0585 ,  H01M4/133 ,  H01M50/103 ,  H01M50/209 ,  H01M50/249

CPC classification number: H01M10/0569 ,  H01M10/625 ,  H01M10/0585 ,  H01M4/133 ,  H01M50/103 ,  H01M50/209 ,  H01M50/249

Abstract: This application relates to a secondary battery, a battery module, a battery pack, and an electric apparatus. The secondary battery includes: a negative electrode plate including a negative electrode current collector and a negative electrode film layer disposed on the negative electrode current collector, the negative electrode film layer containing a carbon material; a positive electrode plate including a positive electrode current collector and a positive electrode active material layer disposed on the positive electrode current collector, the positive electrode active material layer containing a sodium-ion active material; and an electrolyte disposed between the negative electrode plate and the positive electrode plate, the electrolyte containing sodium salt and lithium salt.