Disclosed is a manufacturing method of a battery pack in which multiple battery cells are stacked, and electrodes of adjacent battery cells of the battery cells are connected by a bus bar, the bus bar having two holes that are smaller than the electrodes, and the bus bar being disposed such that the holes overlap the electrodes respectively. The manufacturing method includes welding the bus bar and one of the electrodes, then welding the bus bar and another one of the electrodes in an intermediate region between the two holes of the bus bar, and subsequently welding the bus bar and the other one of the electrodes in an end region adjacent to the intermediate region of the bus bar.

A method and system to manufacture workpieces employing a high intensity energy source to create a puddle and at least one resistively heated wire which is heated to at or near its melting temperature and deposited into the puddle as droplets.

A method and system to manufacture workpieces employing a high intensity energy source to create a puddle and at least one resistively heated wire which is heated to at or near its melting temperature and deposited into the puddle as droplets.

The invention relates to a method for manufacturing a sandwich panel as a semi-finished product where at least one layer of a non-metallic material is positioned between at least two metallic layers. At least one of the metal layers is shaped into a three dimensional layer, and the metal layers are in direct mechanical contact to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions in a subsequent manufacturing process.

The invention relates to a method for manufacturing a sandwich panel as a semi-finished product where at least one layer of a non-metallic material is positioned between at least two metallic layers. At least one of the metal layers is shaped into a three dimensional layer, and the metal layers are in direct mechanical contact to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions in a subsequent manufacturing process.

A method and system to manufacture workpieces employing a high intensity energy source to create a puddle and at least one resistively heated wire which is heated to at or near its melting temperature and deposited into the puddle as droplets.

A method and system to manufacture workpieces employing a high intensity energy source to create a puddle and at least one resistively heated wire which is heated to at or near its melting temperature and deposited into the puddle as droplets.

A visible light laser system and operation for welding materials together. A blue laser system and operation for welding conductive elements, and in particular thin conductive elements, together for use in energy storage devices, such as battery packs.

Provided is an energy storage device which includes: an electrode assembly where electrodes are layered to each other; and current collector joined to the layered electrodes in a state where the current collector overlaps with the electrodes. The electrode and the current collector are welded to each other or are joined to each other by ultrasonic bonding at a first joint portion. At least one of the electrode and the current collector includes a wall surface which projects from a periphery of the first joint portion or a region adjacent to the periphery along a stacking direction of the electrode and the current collector, and surrounds the first joint portion. The wall surface is disposed on both sides of the first joint portion in the stacking direction.

Method for producing a vehicle component, in particular a motor vehicle component, in particular a B-pillar, including providing a first aluminum alloy and a second aluminum alloy. The second alloy composition substantially matches the first aluminum alloy composition. Performing a heat-treatment of the first alloy to increase the ductility of the first alloy. Performing a heat-treatment of the second alloy. The heat-treatment of the first alloy differing from the heat-treatment of the second alloy. Welding together the heat-treated first alloy and the heat-treated second alloy to obtain a composite part. Shaping the composite parts into a motor vehicle component. The motor vehicle component sub-region of the first alloy can be designed as a predetermined deformation region when a force is applied due to an accident to achieve a good combination of rigid regions for example forming a safety cell, and deformable regions forming a crumple zone for absorbing energy.