DC-DC convertor for batteries having multiple positive terminals

摘要

A battery module including a first positive terminal, a second positive terminal, a ground terminal, a power conversion circuit, and a power assembly. The power assembly includes a plurality of battery cells coupled in series and disposed in a stacked orientation relative to each other and configured to output a first voltage between the first positive terminal and the ground terminal. The power conversion circuit is electrically coupled to the power assembly and configured to receive the first voltage as an input and to output a second voltage different from the first voltage. The second positive terminal is electrically coupled to the power conversion circuit to receive the second voltage from the power conversion circuit.

主权项

1. A battery module, comprising:
a first positive terminal; a ground terminal; a power assembly comprising a plurality of pouch battery cells coupled in series and disposed in a stacked orientation relative to each other and configured to output a first voltage between the first positive terminal and the ground terminal, a power conversion circuit electrically coupled to the power assembly configured to receive the first voltage as an input and to output a second voltage different from the first voltage; and a second positive terminal electrically coupled to the power conversion circuit to receive the second voltage from the power conversion circuit wherein the plurality of pouch battery cells is divided into battery cell groups, wherein each of the battery cell groups is configured to provide the second voltage, and wherein the power conversion circuit comprises a voltage multiplexor and a ground multiplexor that selects which of the battery cell groups to provide the second voltage.