Back to results
US 11,909,059 B2Granted
Battery box
AssigneeContemporary Amperex Technology Co., Limited
InventorsTianming Chen, Zhiming Chen
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeContemporary Amperex Technology Co., Limited
InventorsTianming Chen, Zhiming Chen
Estimating the term…
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.
A battery box, comprising a battery case and a plurality of batteries accommodated in the battery case, wherein 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 meets a relation of 1.5≤α/β80, wherein each battery comprises a battery housing and an insulation layer, the battery housing has an outer surface, the outer surface further comprises a first surface on a side of the battery housing, the insulation layer is disposed on the outer surface and has an opening, at least a portion of the first surface is exposed from the insulation layer through the opening and bonded to the inner wall of the battery case by using the adhesive, and the opening is smaller than the first surface in size.
An apparatus, comprising a battery box configured to supply electric energy to the apparatus, the battery box comprising a battery case and a plurality of batteries accommodated in the battery case, wherein 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 meets a relation of 1.5≤α/β80, wherein each battery comprises a battery housing and an insulating insulation layer, the battery housing has an outer surface, the outer surface further comprises a first surface on a side of the battery housing, the insulation layer is disposed on the outer surface and has an opening, at least a portion of the first surface is exposed from the insulation layer through the opening and bonded to the inner wall of the battery case by using the adhesive, and the opening is smaller than the first surface in size.
Dependencies are inferred from the claim text.