Application US20190140459 Energy Storage: Multi-battery Charge Equalization Circuits

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Sandvik Ab

Application US20190140459

Published 2019-05-09

Module Maintenance System

A module maintenance system includes a battery module, a charging device, and a rig. The battery module has a series configuration and a parallel configuration. In the parallel configuration, the rig connects each battery cell of the battery module in parallel and the charging device charges each battery cell of the battery module using the rig. In the series configuration, the battery module serially connects each battery cell of the battery module to a first terminal and a second terminal and the charging device charges each battery cell of the battery module using the first terminal and the second terminal.

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3 Independent Claims

1. A module maintenance system comprising: a battery module comprising an enclosure and at least a first battery cell and a second battery cell, the first and second battery cells being disposed in a cavity of the enclosure; a rig comprising a lid and a set of buses, the set of buses being attached to the lid; a charging device for charging the first and second battery cells; wherein the battery module has a series configuration and a parallel configuration; wherein, in the series configuration, the lid of the rig is spaced apart from the enclosure and the set of buses of the rig are spaced apart from the first and second battery cells; wherein, in the series configuration, one or more bus bars couple the first and second battery cells in series and the charging device modifies charge levels of the first and second battery cells using the one or more bus bars; and wherein, in the parallel configuration, the lid of the rig attaches to the enclosure of the battery module such that the set of buses of the rig couple to the first and second battery cells and the charging device modifies charge levels of the first and second battery cells using the set of buses.
7. A module maintenance system comprising: a battery module comprising at least a first battery cell and a second battery cell; a rig comprising a set of buses for connecting with the first and second battery cells; a charging device comprising a bulk output and an equalization output; wherein the battery module has a series configuration and a parallel configuration; wherein, in the parallel configuration, the rig is disposed onto the battery module such that the set of buses couple the first and second battery cells in parallel; wherein, in the parallel configuration, the equalization output is coupled to the set of buses and the charging device outputs a first voltage to the equalization output to equalize charge levels of the first and second battery cells; wherein, in the series configuration, one or more bus bars couple the first and second battery cells in series with the bulk output and the charging device outputs a second voltage to the bulk output to modify charge levels of the first and second battery cells; and wherein the second voltage is greater than the first voltage.
15. A module maintenance system comprising: a battery module comprising an enclosure and at least a first battery cell and a second battery cell, the first and second battery cells being disposed in a cavity of the enclosure; wherein the first battery cell comprises a first anode and a first cathode and the second battery cell comprises a second anode and a second cathode; a rig comprising a lid, a first bus having a first set of contact elements, and a second bus having a second set of contact elements; and wherein the lid is secured onto the cavity such that the first set of contact elements are coupled to the first cathode and the second cathode and wherein the lid is secured onto the cavity such that the second set of contact elements are coupled to the first anode and the second anode.