Abstract: This disclosure is directed to a battery having a folded architecture that has one or more blocks of cells folded onto one another.

Abstract: This disclosure is directed to a method of making a battery having a folded architecture that has one or more blocks of cells folded onto one another.

Abstract: One aspect of this disclosure is directed to a power system controller. This embodiment comprises a controller having a programmable microprocessor and memory associated therewith, and one or more rechargeable batteries each located within a battery case and connected in parallel to the controller. Each of the rechargeable batteries has a circuit breaker located within the battery case. The circuit breaker has a bidirectional current sensor connected to the controller, and the controller is configured to operate the bidirectional current sensor to manage a current flow to and from one or more of the rechargeable batteries.

Abstract: A battery may include a plurality of cells, each cell having an elongate insulating case with a first end face including a positive terminal and a second end face including a negative terminal. a plurality of cells, each cell having an elongate insulating case with a first end face including a positive terminal and a second end face including a negative terminal. Positive and negative bus bars may be connected to the corresponding terminals of all of the plurality of cells. Each of the positive bus bar and the negative bus bar may have an L-shaped cross section including a first planar conductor joined at an angle of approximately 90 degrees to a second planar conductor. Each first planar conductor may be spot welded to the respective terminals of the plurality of cells and each second planar conductor may be disposed alongside the insulating cases of the plurality of cells.