Back to results
US 2026/0066480 A1Published application
Battery with welded bus bar connections
AssigneeFord Global Technologies, LLC
InventorsDaewon HAN, Chi PAIK
Life of this patent
Estimating the term…
Abstract
In a high voltage vehicle electronics system, a battery includes a plurality of battery cells, each with two electrode foils. The electrode foils are laser welded to respective terminal tabs using a fillet weld. The terminal tabs may be connected to other electrical components, such as an inverter by bus bars or cables.
Claims16
A method of welding comprising:
- stacking a plurality of metal foils to form a foil stack, wherein an edge of each metal foil is aligned along an edge of the foil stack;
- placing a surface of the foil stack against a surface of a metal tab such that the surface of the tab extends beyond the edge of the foil stack;
- and
- focusing energy from a laser on the edge of the foil stack to create a fillet weld fastening each of the metal foils to the tab.
1 more element
A battery comprising:
- a plurality of battery cells, each having a first electrode foil;
- and
- a first terminal tab;
- wherein
- the first electrode foil of each battery cell of the plurality of battery cells is mechanically and electrically connected to the first terminal tab by a first fillet weld.
2 more elements
A battery comprising:
- a plurality of battery cells, each of the battery cells having a first electrode foil, wherein the first electrode foils are stacked to form a first foil stack with edges of the first electrode foils aligned along an edge of the first foil stack;
- and
- a first terminal tab mechanically and electrically connected to the edges of each of the first electrode foils by a first fillet weld.
Dependencies are inferred from the claim text.