公开(公告)号：US20190058169A1

公开(公告)日：2019-02-21

申请号：US16167418

申请日：2018-10-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Kaifu ZHONG

IPC: H01M2/04 ,  H01M2/06 ,  H01M2/02 ,  H01M2/12 ,  H01M2/36

Abstract: The present application relates to a secondary battery, including a naked battery core and a secondary battery head cover assembly. The secondary battery head cover assembly includes a head cover and an insulation structure. The insulation structure includes a top connection sheet and two naked battery core insulation sheets, and the two naked battery core insulation sheets are connected to two long sides of the top connection sheet, respectively. The top connection sheet is located below the head cover. The naked battery core is located below the top connection sheet. The head cover is provided with an explosion-proof valve, the top connection sheet is provided with an explosion-proof valve air hole, and the explosion-proof valve air hole is provided correspondingly below the explosion-proof valve.

公开(公告)号：US20170250400A1

公开(公告)日：2017-08-31

申请号：US15429083

申请日：2017-02-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dengjun AI ,  Chuanmiao YAN ,  Kaifu ZHONG

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/62 ,  H01M4/136 ,  H01M4/58 ,  H01M4/131 ,  H01M2/16

CPC classification number: H01M4/364 ,  H01M2/1653 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/366 ,  H01M4/483 ,  H01M4/58 ,  H01M4/62 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M2300/0037

Abstract: An electrode with coating layer and a Li-ion battery including the electrode with coating layer are provided. The electrode with coating layer includes an electrode piece, a first material layer adjacent to the electrode piece, and a second material layer adjacent to the first material layer and far away from the electrode piece, the first material layer includes a first inorganic particle and a first binder, the second material layer includes a second binder, the first inorganic particle is at least one selected from a group consisting of metal hydroxide and boron-containing compound. The electrode with coating layer, under synergistic effect of the first material layer and the second material layer, can improve thermal stability and safety of the battery, under a situation that both the exterior and interior of the battery are at high temperature, the battery does not readily burn or explode.

公开(公告)号：US20170271641A1

公开(公告)日：2017-09-21

申请号：US15444201

申请日：2017-02-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Kaifu ZHONG ,  Lingbo ZHU

IPC: H01M2/20 ,  H01M2/34

CPC classification number: H01M2/202 ,  H01M2/34 ,  H01M2/348 ,  H01M2200/103

Abstract: The present disclosure provides a secondary battery, which comprises a cap plate, at least two cells and two connecting pieces. The cap plate is provided with two electrode terminals which are opposite in electrical polarity. Each cell has two tabs which are opposite in electrical polarity. Each connecting piece has: an electrode terminal electrical connecting portion for electrically connecting with the corresponding electrode terminal of the cap plate; a plurality of tab electrical connecting portions for electrically connecting with the corresponding tabs of the cells respectively; and a plurality of fusing portions electrically connecting the corresponding tab electrical connecting portion to the electrode terminal electrical connecting portion, a width of each fusing portion is less than a width of the electrode terminal electrical connecting portion. A configuration of the connecting piece is simple, thereby reducing the cumulative heat of the secondary battery and reducing the temperature rise.