Patent ID: 11955677
Assignee: COUGAR CREEK TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 10:
11. A redox flow battery system, comprising:
an anolyte, wherein the anolyte comprises chromium ions and at least a portion of the chromium ions form a chromium complex with at least one of the following: NH3, NH4+, CO(NH2)2, SCN−, or CS(NH2)2;
a catholyte;
an anolyte tank configured for holding at least a portion of the anolyte;
a catholyte tank configured for holding at least a portion of the catholyte;
a primary redox flow battery arrangement comprising
a first half-cell comprising a first electrode in contact with the anolyte,
a second half-cell comprising a second electrode in contact with the catholyte,
a first separator separating the first half-cell from the second half-cell,
a first anolyte pump configured for moving the anolyte between the first half-cell and the anolyte tank, and
a first catholyte pump configured for moving the catholyte between the second half-cell and the catholyte tank, and

a secondary redox flow battery arrangement comprising
a third half-cell comprising a third electrode in contact with the anolyte,
a fourth half-cell comprising a fourth electrode in contact with the catholyte,
a second separator separating the third half-cell from the fourth half-cell,
a second anolyte pump configured for moving the anolyte between the third half-cell and the anolyte tank, and
a second catholyte pump configured for moving the catholyte between the fourth half-cell and the catholyte tank;

wherein a peak power delivery capacity of the secondary redox flow battery arrangement is less than a peak power delivery capacity of the primary redox flow battery arrangement.