公开(公告)号：US20160036049A1

公开(公告)日：2016-02-04

申请号：US14796816

申请日：2015-07-10

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Bin Wang ,  Yingkai Jiang ,  Lai Fan Man ,  Pauyee Lim

IPC: H01M4/36 ,  H01M4/46 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/04 ,  H01M4/133 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/133 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/42 ,  H01M4/463 ,  H01M4/466 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/0525

Abstract: A method of coating electrode material, for a lithium ion battery, that involves chemically grafting an organic layer to the electrode material. The method includes carbonizing the organic layer to form a doped carbon layer chemically bonded to the electrode material. A dopant included in the carbon layer is adapted to react with harmful material formed in the operation of the lithium ion battery and thereby protect the electrode material. Further, a dopant included in the carbon layer may improve the carbon layer's conductivity. A lithium ion battery that includes an electrode fabricated from electrode material that has doped carbon chemically bonded to the electrode material. A dopant included in the doped carbon is capable of reacting with harmful products formed in the electrolyte of the lithium ion battery during its charging and discharging process. A dopant included in the doped carbon improves electron transfer and thereby improves conductivity of the electrode material and the electrode fabricated from the electrode material.

Abstract translation: 一种涂覆用于锂离子电池的电极材料的方法，其包括将有机层化学接枝到电极材料上。 该方法包括将有机层碳化以形成化学键合到电极材料上的掺杂碳层。 包含在碳层中的掺杂剂适于与在锂离子电池的操作中形成的有害材料反应，从而保护电极材料。 此外，包含在碳层中的掺杂剂可以改善碳层的导电性。 一种锂离子电池，其包括由电极材料制成的电极，所述电极材料具有化学键合到所述电极材料的掺杂碳。 包含在掺杂碳中的掺杂剂能够在其充电和放电过程中与锂离子电池的电解质中形成的有害产物反应。 包含在掺杂碳中的掺杂剂改善电子转移，从而改善电极材料和由电极材料制成的电极的导电性。