公开(公告)号：US20140255769A1

公开(公告)日：2014-09-11

申请号：US14195779

申请日：2014-03-03

Applicant: Ningde Amperex Technology Limited

Inventor： Huan GAO ,  Chao Yang

IPC: H01M2/08

CPC classification number: H01M2/08 ,  H01M2/365 ,  H01M10/0525 ,  Y10T428/24273

Abstract: The present disclosure provides a lithium-ion battery electrolyte injection hole sealing device, the lithium-ion battery electrolyte injection hole sealing device is provided with a through hole corresponding to an electrolyte injection hole of a battery cover, the lithium-ion battery electrolyte injection hole sealing device is a film comprising a polypropylene layer, the lithium-ion battery electrolyte injection hole sealing device is packaged on the electrolyte injection hole and a peripheral area of the electrolyte injection hole of the battery cover by hot melting of the polypropylene layer. Consequently, pollution and corrosion of the electrolyte injection hole and the peripheral area thereof are avoided, so as to improve quality of seal welding of the electrolyte injection hole.

Abstract translation: 本发明提供一种锂离子电池电解质注入孔密封装置，其中锂离子电池电解液注入孔密封装置具有与电池盖的电解液注入孔对应的通孔，锂离子电池电解液注入孔 密封装置是包括聚丙烯层的膜，通过聚丙烯层的热熔融将锂离子电池电解质注入孔密封装置封装在电解液注入孔和电池盖的电解液注入孔的外围区域上。 因此，避免了电解液注入孔及其周边区域的污染和腐蚀，从而提高了电解液注入孔的密封焊接质量。