Abstract: A battery pack for an electric vehicle includes a first battery arranged in parallel with a load of the electric vehicle. A second battery is arranged in parallel with the first battery and the load. A first semiconductor switching module is arranged in series with the first battery and is arranged to selectively allow current flow from the first battery to the load and from the load to the first battery. A second semiconductor switching module is arranged in series with the second battery and is arranged to selectively allow current flow from the second battery to the load and from the load to the second battery. A battery control module selectively turns on and off the first semiconductor switching module and the second semiconductor switching module.

Abstract: A battery pack for an electric vehicle includes a first battery, a second battery, and a load arranged in parallel. A first semiconductor switching module is arranged in series with the first battery, and to selectively allow current flow from the first battery to the load and from the load to the first battery. A second semiconductor switching module is arranged in series with the second battery, and to selectively allow current flow from the second battery to the load and from the load to the second battery. A battery control module stores at least one of charge data and usage data corresponding to the first battery and the second battery, and selectively turns on and off the first semiconductor switching module and the second semiconductor switching module based on at least one of the charge data and the usage data.

Abstract: A system according to the principles of the present disclosure includes a battery disconnect unit (BDU) and a cartridge. The BDU includes a first positive terminal, a first negative terminal, a second positive terminal, a second negative terminal, a first current path, a second current path, a first switch, and a second switch. The first current path is between the first positive terminal and the second positive terminal. The second current path is between the first negative terminal and the second negative terminal. The first switch is disposed in the first current path. The second switch is disposed in the second current path. The cartridge includes a first terminal, a second terminal, and a current path between the first terminal and the second terminal. The first terminal is configured to connect to one of the terminals on the BDU.

Abstract: A first battery includes a first and terminals having first and second reference potentials, respectively. A second battery includes a third and fourth terminals having a third and fourth reference potentials, respectively. A bus bar comprises: a first terminal contactor portion that is electrically conductive and that directly contacts one of the first and second terminals of the first battery; a second terminal contactor portion that is electrically conductive and that directly contacts one of the third and fourth terminals of the second battery; and a connecting portion that is electrically conductive, that is electrically connected between the first terminal contactor portion and the second terminal contactor portion, and that creates an open circuit between the first and second terminal contactor portions in response to current flow through the connecting portion that is greater than a predetermined current for at least a predetermined period.

Abstract: A system includes a plurality of batteries, first and second relays, a relay control module, and a welding indication module. The batteries are electrically connected and collectively output power for an electric motor via first and second nodes. The first relay is connected between a first output of the batteries and the first node. The second relay is connected between a second output of the batteries and the second node. The relay control module controls the first and second relays. The welding indication module commands the relay control module to open the first relay during a diagnosis period, commands the relay control module to close the second relay during the diagnosis period, and indicates whether the first relay is welded closed based on a voltage between the first and second nodes during the diagnosis period.

Abstract: A battery cell according to the principles of the present disclosure includes a cell housing and a mounting member that is fixed to an outer surface of the cell housing. In one example, the mounting member is formed separate from the cell housing and attached to the outer surface of the cell housing. In another example, the mounting member is unitarily formed with the cell housing and protrudes from a planar surface of the cell housing.