公开(公告)号：US20150357628A1

公开(公告)日：2015-12-10

申请号：US14728636

申请日：2015-06-02

Applicant: Ningde Amperex Technology Limited

Inventor： Baiqing LI ,  Shengwu Zhang ,  Xinghua Tao ,  Baiqing Zhang

IPC: H01M4/134 ,  H01M4/04 ,  H01M4/38

CPC classification number: H01M4/134 ,  H01M4/0404 ,  H01M4/0483 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/382 ,  H01M4/62 ,  H01M10/052

Abstract: The present disclosure provides a lithium-rich electrode plate of a lithium-ion battery and a preparation method thereof. The preparation method of the lithium-rich electrode plate of the lithium-ion battery comprises steps of: (1) in a protective gas environment, melting a lithium ingot to obtain a melting lithium; (2) in a vacuum environment, heating and drying ceramic particles to obtain dried and anhydrous ceramic particles; (3) in a protective gas environment, adding the dried and anhydrous ceramic particles into the melting lithium, stirring to make them uniformly mixed to obtain a modified melting lithium; (4) in a protective gas environment, uniformly coating the modified melting lithium on a surface of an electrode plate to be lithium rich to form a lithium-rich layer, which is followed by cooling to room temperature to obtain a lithium-rich electrode plate of a lithium-ion battery. The lithium-rich electrode plate is prepared according to the preparation method.

Abstract translation: 本公开内容提供了一种锂离子电池的富锂电极板及其制备方法。 锂离子电池的富锂电极板的制备方法包括以下步骤：（1）在保护气体环境中，熔解锂锭以获得熔融的锂; （2）在真空环境下，加热干燥陶瓷颗粒，得到干燥无水陶瓷颗粒; （3）在保护气体环境下，将干燥无水陶瓷颗粒加入熔融锂中，搅拌均匀混合，得到改性熔融锂; （4）在保护气体环境中，在电极板的表面上均匀地涂覆锂化锂，形成富锂层，然后冷却至室温，得到富锂电极板 的锂离子电池。 根据制备方法制备富锂电极板。