公开(公告)号：US20190198852A1

公开(公告)日：2019-06-27

申请号：US16134010

申请日：2018-09-18

Applicant: Ningde Amperex Technology Limited

Inventor： Haiyang Nan ,  Chuantao Song ,  Zhiwen Xiao ,  Zuchao Liu ,  Xinru Su ,  Wei Huang

IPC: H01M2/34 ,  H01M2/26

CPC classification number: H01M2/348 ,  H01M2/26 ,  H01M2200/10

Abstract: The present invention discloses a cell and a battery, wherein the cell comprises a body including a first electrode tab; and a choke that triggers after the temperature reaches a certain value to reduce the current passing through it; the choke is electrically connected to the first electrode tab, and a product of the length of connection path from the choke to the first electrode tab and a cooling coefficient of the connection path is smaller than a difference between a first temperature of the first electrode tab and a second temperature of the choke, wherein the second temperature of the choke is a temperature when the choke is triggered. In the above-mentioned cell, if the trigger action of the choke is timely, the body of the cell can be prevented from reaching the overcharge state, and the choke in the above-mentioned cell can further effectively protect the cell.

公开(公告)号：US20190229321A1

公开(公告)日：2019-07-25

申请号：US16182595

申请日：2018-11-06

Applicant: Ningde Amperex Technology Limited

Inventor： Zuchao Liu ,  Chuantao Song ,  Zhiwen Xiao ,  Haiyang Nan ,  Wei Huang ,  Xinru Su

IPC: H01M2/34 ,  H01M10/42 ,  H01M2/26

Abstract: The present application relates to the field of battery, discloses an electrode-assembly and a battery, wherein the electrode-assembly includes a body with a first wall and a current blocker arranged on the first wall. The first wall of the body is close to the internal structure of the body, and its temperature is relatively close to the internal temperature of the body as compared with the seal side of the electrode-assembly; in above electrode-assembly, since the current blocker is directly attached to the first wall of the body, the heat inside the body can be quickly conducted to the current blocker through the first wall, so the current blocker of the electrode-assembly can be triggered more timely to reduce or cut off the current for effectively protecting the electrode-assembly.