A method of manufacturing a battery pack including the creation of a support board for enabling conversion of the battery pack from providing a first voltage to providing a second voltage. The support board is created by injection molding about a precut set of power traces for coupling a converting element to a plurality of battery cells. The power traces couple the plurality of battery cells to a set of battery pack terminals. The support board may be mechanically coupled to a battery cell holder.

A method of manufacturing a battery pack including the creation of a support board for enabling conversion of the battery pack from providing a first voltage to providing a second voltage. The support board is created by injection molding about a precut set of power traces for coupling a converting element to a plurality of battery cells. The power traces couple the plurality of battery cells to a set of battery pack terminals. The support board may be mechanically coupled to a battery cell holder.

An electric power system for an electric vehicle, including: first charging and discharging current paths connected to a first battery unit; second charging and discharging current paths connected to a second battery unit; third charging and discharging current paths for a connection with an electric control system of the vehicle; a first power switch between the first discharging current path and the third discharging current path; a second power switch between the second discharging current path and the third discharging current path; a controlling unit to set the first and second power switches based on states of the accumulators, at least one of the first and second battery units being swappable. A controller, a method, and a vehicle comprising the system are also disclosed.

A battery module has a total of 144 battery cells, wherein the battery cells each have an individual voltage value and wherein the battery module has an output voltage value. The battery cells are connected to each other to form one or more groups of battery cells, wherein, when more than one group of battery cells are formed, the groups of battery cells each contain the same number of battery cells, and wherein the battery cells in each one of the one or more groups of battery cells are connected in parallel to each other. When more than one group of battery cells are formed, the groups of battery cells are connected in series. The battery module provides different connection schemes of the battery cells to form the one or more groups of battery cells connected in series.

Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.

Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.

An assembly able to deliver an output current, includes N electrical energy storage or production cells of rank i, where N≥2, being able to supply a maximum current I.sub.max,i at all times t; a management circuit for managing the electrical energy storage or production cells, wherein, with the cells being classed according to their rank i in decreasing priority of use, the management circuit comprises means for addressing at least the cell of rank 1 or the cells according to their rank i and according to the following criteria: the cell of rank 1 is addressed on its own as long as it is able to supply the output current I.sub.s<I.sub.max1; the cell of rank 1 is addressed with additionally a number k of cells that are addressed successively according to their rank i, so as to supply the current Is at all times in discharge mode, the number k being such that 2<k≤N and meeting the following conditions:

Σ.sub.i=1.sup.k−1I.sub.max,i<I.sub.s and Σ.sub.i=1.sup.kI.sub.max,i≥I.sub.s

An electrochemical cell management system comprising an electrochemical cell and at least one controller configured to control the cell such that, for at least a portion of a charge cycle, the cell is charged at a charging rate or current that is lower than a discharging rate or current of at least a portion of a previous discharge cycle. An electrochemical cell management method. An electrochemical cell management system comprising an electrochemical cell and at least one controller configured to induce a discharge of the cell before and/or after a charging step of the cell. An electrochemical cell management method. A electrochemical cell management system comprising an electrochemical cell and at least one controller configured to: monitor at least one characteristic of the cell and, based on the at least one characteristic of the cell, induce a discharge and/or control a charging rate or current of the cell.

A battery pack and charger system includes a first battery pack having a first set of battery cells and configured to provide only a first operating voltage and a second battery pack having a second set of battery cells and configured to provide the first operating voltage and a second operating voltage that is different from the first operating voltage and a battery pack charger configured to be able to charge the first battery pack and the second battery pack.

A battery pack and charger system includes a first battery pack having a first set of battery cells and configured to provide only a first operating voltage and a second battery pack having a second set of battery cells and configured to provide the first operating voltage and a second operating voltage that is different from the first operating voltage and a battery pack charger configured to be able to charge the first battery pack and the second battery pack.