公开(公告)号：US09607777B2

公开(公告)日：2017-03-28

申请号：US14147463

申请日：2014-01-03

Applicant: Ningde Amperex Technology Limited

Inventor： Sheng Cheng ,  Shaojun Niu ,  Dongming He ,  Xiaowen Zhang

IPC: H01M2/18 ,  H01G11/52 ,  H01M2/14 ,  H01M10/052 ,  H01G11/06

CPC classification number: H01G11/52 ,  H01G11/06 ,  H01M2/145 ,  H01M2/18 ,  H01M10/052 ,  Y02E60/13

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.

公开(公告)号：US20150004498A1

公开(公告)日：2015-01-01

申请号：US14147463

申请日：2014-01-03

Applicant: Ningde Amperex Technology Limited

Inventor： Sheng Cheng ,  Shaojun Niu ,  Dongming He ,  Xiaowen Zhang

IPC: H01G11/04 ,  H01M2/14

CPC classification number: H01G11/52 ,  H01G11/06 ,  H01M2/145 ,  H01M2/18 ,  H01M10/052 ,  Y02E60/13

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.

Abstract translation: 本公开提供了一种分离器和电化学装置，隔板在分隔件的宽度方向上设置有折叠结构单元，并且折叠结构单元的重叠部分填充有粘合剂。 当分离器应用于电化学装置的生产中时，可以像往常那样执行卷绕工艺。 在电化学装置的电解质注入或高温老化之后，填充在分离器的折叠结构单元中的粘合剂可以溶解到电解质中，折叠的结构单元可以再次展开到平坦的位置，以便有效地消除变形 的电化学装置，其可能由分离器的热收缩引起，在电池中缠绕的隔膜中的应力超过应力，或者在电化学装置的操作和制造期间隔板对负极和正极的膨胀的结合。