One embodiment provides an electronic device, including: a battery pack stack comprising at least two battery packs; wherein the battery pack stack comprises at least one cumulative heat reducing component positioned between the at least two battery packs. Other aspects are described and claimed.

A battery apparatus includes at least two battery units. Each of the battery units includes at least two batteries. A heat insulating pad is disposed between the adjacent two battery units, and at least a pair of the adjacent two batteries belonging to a same battery unit contact each other with largest surfaces of the batteries.

A battery module for a traction battery of an electric vehicle is disclosed. The battery module includes a heat transfer surface for tempering cells of the battery module and at least one cavity disposed between partial surfaces of the heat transfer surface for receiving excess heat conductive material.

A battery module for a traction battery of an electric vehicle is disclosed. The battery module includes at least one heat baffle arranged between two cells of the battery module. A central region of the heat conducting plate is arranged extending in a space between the cells and along a main extension plane of the heat conducting plate. An end region of the heat conducting plate is arranged outside the space and is oriented transversely to the main extension plane and forms a deformable heat transfer surface of the battery module. The end portion is oriented at an acute angle to a reference plane of the heat transfer surface perpendicular to the main extension plane.

The present disclosure relates to an apparatus of measuring a temperature of a battery cell, which may measure temperature values at a plurality of locations through a plurality of temperature sensors arranged at the locations below a water-cooled battery cell module, and thus may identify a temperature difference between an upper portion and a lower portion of a battery cell, which is not visually identified, as well as all temperature values at all locations below the battery cell.

A partition member includes an encapsulated body capable of retaining a liquid, and an outer package body for accommodating the encapsulated body and the liquid. The area S1 of the encapsulated body when the outer package body and the encapsulated body are seen in a planar view from the thickness direction and the area S2 of a gap between the outer package body and the encapsulated body satisfy the relationship represented by formula 1 below, and the volume V1 of the liquid and the volume V2 of the encapsulated body satisfy the relationship represented by formula 2 below.
S1/(S1+S2)≤0.99 and  Formula 1
0.02≤V1/V2≤1.90  Formula 2

A partition member includes an encapsulated body capable of retaining a liquid, and an outer package body for accommodating the encapsulated body and the liquid. The area S1 of the encapsulated body when the outer package body and the encapsulated body are seen in a planar view from the thickness direction and the area S2 of a gap between the outer package body and the encapsulated body satisfy the relationship represented by formula 1 below, and the volume V1 of the liquid and the volume V2 of the encapsulated body satisfy the relationship represented by formula 2 below.
S1/(S1+S2)≤0.99 and  Formula 1
0.02≤V1/V2≤1.90  Formula 2

This battery insulation structure includes a double-walled insulating container 1 including an insulating container main body 2 in which an insulating space S1 is provided between an inner wall 21 and an outer wall 22, and an insulating lid 3 in which an insulating space S2 is provided between an inner lid 31 and an outer lid 32, and a battery body 4 housed in the insulating container 1, wherein the battery body 4 is arranged to be spaced apart from the inner wall 21 of the insulating container main body 2 and the inner lid 31 of the insulating lid 3. This battery insulation structure can be adapted to both a very low-temperature external environment and a very high-temperature external environment, and can reduce the influence of the temperature of the external environment on the batter as much as possible.

The present disclosure relates to a battery module that has a filling portion transformed into a structure in which a battery cell is supported such that swelling pressure generated when swelling occurs is offset without an additional control, or a structure in which the battery cell is efficiently cooled.

A battery pack includes a plurality of cells, a refrigerant pipe, a plurality of cooling members, and a restraining unit. Each of the cooling members includes a plate-shaped portion interposed between the cells, and a contact portion jutting out from between the cells and contacting the refrigerant pipe. The restraining unit includes a pair of restraining members and a support member supporting the pair of restraining members, the pair of restraining members restraining opposite ends of the plurality of cells arranged with the plurality of cooling members interposed. The cooling members include one or more first cooling members and one or more second cooling members, the one or more second cooling members having a heat capacity higher than the one or more first cooling members and having a greater contact area with the refrigerant pipe than the one or more first cooling members.