The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2017
Filed:
Jan. 03, 2014
Ningde Amperex Technology Limited, Ningde, CN;
Sheng Cheng, Ningde, CN;
Shaojun Niu, Ningde, CN;
Dongming He, Ningde, CN;
Xiaowen Zhang, Ningde, CN;
NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde, CN;
Abstract
The present disclosure provides a separator and an electrochemical device, the separator is provided with a folded structure unit across a widthwise direction of the separator, and an overlapping part of the folded structure unit is filled with an adhesive. When the separator is applied into a production of the electrochemical device, a winding process can be performed as usual. After an electrolyte injection or high temperature aging of the electrochemical device, the adhesive filled in the folded structure unit of the separator may be dissolved into the electrolyte, the folded structure unit can be unfolded to a flat position again, so as to effectively eliminate deformation of the electrochemical device, which may be caused by thermal contraction of the separator, over stress in the separator wound in a cell, or the separator's binding on expansion of negative and positive electrodes, during operation and production of the electrochemical device.