A battery module with an ability of homogenizing temperatures includes at least one battery pack and at least one temperature homogenizing element. The at least one battery pack includes a plurality of batteries. The plurality of the batteries are divided into a middle group of the batteries and an outer group of the batteries. The outer group of the batteries surround the middle group of the batteries. The at least one temperature homogenizing element is mounted around the middle group of the batteries. The at least one temperature homogenizing element has a plurality of fixing holes. The middle group of the batteries are inserted into the plurality of the fixing holes, and the outer group of the batteries are attached to an outer surface of an outer wall of the at least one temperature homogenizing element.

A battery module with an ability of homogenizing temperatures includes at least one battery pack and at least one temperature homogenizing element. The at least one battery pack includes a plurality of batteries. The plurality of the batteries are divided into a middle group of the batteries and an outer group of the batteries. The outer group of the batteries surround the middle group of the batteries. The at least one temperature homogenizing element is mounted around the middle group of the batteries. The at least one temperature homogenizing element has a plurality of fixing holes. The middle group of the batteries are inserted into the plurality of the fixing holes, and the outer group of the batteries are attached to an outer surface of an outer wall of the at least one temperature homogenizing element.

A battery module for a traction battery of an electric vehicle is described. The battery module has two side parts arranged on opposite sides of the battery module and aligned substantially parallel to an electrode surface of cells of the battery module. At least one of the side parts has an elastic region offset from a main extension plane of the side part. The elastic region is adapted to exert a pressing force perpendicular to the electrode surface on the cells.

A battery module for a traction battery of an electric vehicle is described. The battery module has two side parts arranged on opposite sides of the battery module and aligned substantially parallel to an electrode surface of cells of the battery module. At least one of the side parts has an elastic region offset from a main extension plane of the side part. The elastic region is adapted to exert a pressing force perpendicular to the electrode surface on the cells.

A cell case includes (i) first and second metal plates constituting a first part of the cell case and placed such that the first and second metal plates are separated from each other (ii) a resin portion provided between the metal plates such that the resin portion connects the first and second metal plates. The first metal plate and the second metal plate include a first overlapped portion and a second overlapped portion, respectively, such that the first overlapped portion and the second overlapped portion overlap with each other via the resin portion. The first overlapped portion includes a hook. The second overlapped portion has an opening. The hook is formed to be caught on the opening to restrict relative displacement between the first metal plate and the second metal plate along a direction where the first metal plate and the second metal plate are separated from each other.

A cell case includes (i) first and second metal plates constituting a first part of the cell case and placed such that the first and second metal plates are separated from each other (ii) a resin portion provided between the metal plates such that the resin portion connects the first and second metal plates. The first metal plate and the second metal plate include a first overlapped portion and a second overlapped portion, respectively, such that the first overlapped portion and the second overlapped portion overlap with each other via the resin portion. The first overlapped portion includes a hook. The second overlapped portion has an opening. The hook is formed to be caught on the opening to restrict relative displacement between the first metal plate and the second metal plate along a direction where the first metal plate and the second metal plate are separated from each other.

A lithium-ion battery module includes a housing having a plurality of partitions configured to define a plurality of compartments within a housing. The battery module also includes a lithium-ion cell element provided in each of the compartments of the housing. The battery module further includes a cover coupled to the housing and configured to route electrolyte into each of the compartments. The cover is also configured to seal the compartments of the housing.

A sheet metal assembly includes a drawn metal sheet constructed of a metal material. The drawn metal sheet defines a surface and includes one or more stiffening features disposed along the drawn metal sheet. The one or more stiffening features represents a raised area disposed along the surface of the drawn metal sheet. Each of the one or more stiffening features include a predefined draw depth ranging from about twenty millimeters to about eighty millimeters.

A sheet metal assembly includes a drawn metal sheet constructed of a metal material. The drawn metal sheet defines a surface and includes one or more stiffening features disposed along the drawn metal sheet. The one or more stiffening features represents a raised area disposed along the surface of the drawn metal sheet. Each of the one or more stiffening features include a predefined draw depth ranging from about twenty millimeters to about eighty millimeters.

The invention relates to a crossmember for motor vehicle construction, having at least two modules that can be arranged one above the other, wherein each module has an inner side wall and an outer side wall, which are connected to one another at their upper ends by an upper wall and at their lower ends by a lower wall, wherein the upper wall of the lower module has, over the longitudinal extent thereof, a raised portion or depression, which engages in a complementary depression or raised portion of the lower wall of the upper module.