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Battery pack with cells of different capacities electrically coupled in parallel

  • US 10,217,977 B2
  • Filed: 03/23/2017
  • Issued: 02/26/2019
  • Est. Priority Date: 07/13/2010
  • Status: Active Grant
First Claim
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1. A battery pack, comprising:

  • a first set of cells electrically coupled in a first parallel configuration, the first set of cells comprising a first cell, second cell, and third cell; and

    wherein the first cell, second cell and third cell each have different capacities and dimensions;

    wherein the capacity of the first cell is substantially the same as the cumulative capacity of the second cell and third cell;

    wherein the first set of cells has a first overall capacity;

    a second set of cells electrically coupled in a second parallel configuration, the second set of cells comprising a fourth cell, fifth cell, and sixth cell;

    wherein the fourth cell, fifth cell, and sixth cell each have different capacities and dimensions;

    wherein the capacity of the fourth cell is substantially the same as the cumulative capacity of the fifth cell and sixth cell;

    wherein the second set of cells has a second overall capacity;

    wherein the first set of cells and the second set of cells are arranged in an asymmetric configuration;

    wherein the first overall capacity is substantially the same as the second overall capacity, andwherein the first set of cells and the second set of cells are electrically coupled in a series configuration.

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