公开(公告)号：US20200212392A1

公开(公告)日：2020-07-02

申请号：US16673553

申请日：2019-11-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Tianming CHEN ,  Zhiming CHEN

IPC: H01M2/10 ,  B60R16/04

Abstract: The present disclosure provides a battery box, the battery box comprises a box body, batteries, an insulating film and a adhesive. Each battery comprises a case. The insulating film covers the case of each battery and is provided with an opening. The adhesive is provided between the battery and the box body. The A1, A, L1, ρ1, L2 and ρ2 meet a following relationship: L 1 A 1 · ρ 1 · L 2 A - A 1 · ρ 2 L 1 A 1 · ρ 1 + L 2 A - A 1 · ρ 2 ≥ 10  M   Ω . Because the insulating film is provided with the opening, a portion of the adhesive bonds the case to the box body at the opening, a portion of the adhesive bonds the insulating film to the box body at the outside of the opening, it ensures the bonding strength between the battery and the box body. Meanwhile, it makes a covering area of the insulating film on the battery meet the requirement of the insulating strength, thereby ensuring the safety performance.

公开(公告)号：US20200212391A1

公开(公告)日：2020-07-02

申请号：US16673546

申请日：2019-11-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tianming CHEN ,  Zhiming CHEN

IPC: H01M2/10 ,  H01M2/04 ,  H01M2/02

Abstract: The present disclosure provides a battery box, the battery box comprises a box body, batteries, an insulating film and an adhesive. Each battery comprises a case. The insulating film covers the case of each battery and is provided with an opening. The adhesive is provided between the battery and the box body. The σ1, σ2, A1 and A meet a following relationship A - A 1 A · σ 2 + A 1 A · σ 1 ≥ 7.2   Mpa . The insulating film ensures the insulation performance, and because the insulating film is provided with the opening, a portion of the adhesive bonds the case to the box body at the opening, a portion of the adhesive bonds the insulating film to the box body at the outside of the opening, therefore the bonding strength between the battery and the box body is improved, thereby improving the overall strength. Moreover, because σ1, σ2, A1 and A meet the above relationship, the battery box ensures the safety performance.

公开(公告)号：US20210091437A1

公开(公告)日：2021-03-25

申请号：US17112803

申请日：2020-12-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tianming CHEN ,  Zhiming Chen

IPC: H01M50/233 ,  H01M50/209 ,  H01M50/271 ,  H01M50/229 ,  H01M50/264 ,  C09J7/38 ,  C09J7/10 ,  C09J11/04 ,  C09K5/14

Abstract: This application discloses a battery box, including a battery case and a plurality of batteries accommodated in the battery case. The batteries are bonded to an inner wall of the battery case by using an adhesive, a coefficient of thermal expansion of the adhesive is α in units of ppm/° C., a coefficient of thermal conductivity of the adhesive is β in units of W/mK, and a ratio of α and β meet a relation of 15≤α/β≤80. In the battery box in this application, the battery case and the plurality of batteries accommodated in the battery case are bonded by using the adhesive. When the coefficient of thermal conductivity of the adhesive matches the coefficient of thermal expansion, heat conduction requirements of the battery box can be satisfied, and the adhesive can also be prevented from cracking or peeling off under heat stress due to alternating temperatures during use of the battery box, thereby improving safety performance of the battery box.