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SCALABLE AND FLEXIBLE CELL-BASED ENERGY STORAGE SYSTEM

  • US 20170093156A1
  • Filed: 09/29/2016
  • Published: 03/30/2017
  • Est. Priority Date: 09/30/2015
  • Status: Active Grant
First Claim
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1. An energy storage system comprising:

  • a grid tie unit comprising at least one DC/AC converter, the grid tie unit coupling the energy storage system to an external AC system;

    a DC bus coupled to the grid tie unit;

    a plurality of pods connected to the DC bus, each pod including;

    plurality of battery cells;

    a power electronics unit configured to galvanically isolate the plurality of battery cells from a plurality of battery cells of at least one other pod of the plurality of pods and to allow the plurality of battery cells to float relative to the grid tie unit.

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