Patent ID: 11949139
Assignee: VOLTA ENERGY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A flow electrochemical cell comprising:
a negative electrode configured to be in fluid communication with alkaline negative electrolyte for producing CO2-bearing anions;
a positive electrode configured to be in fluid communication with acidic positive electrolyte, the alkaline negative electrolyte and the acidic positive electrolyte further comprising redox active molecules that participate in redox reactions to store electrical energy;
a first ion-exchange membrane in contact with the negative electrode;
a second ion-exchange membrane in contact with the positive electrode; and
an intermediate neutralyte layer between the first ion-exchange membrane and the second ion-exchange membrane, the CO2-bearing anions transported to the neutralyte layer, via ion migration through the first ion-exchange membrane, or by pump transport of the alkaline negative electrolyte, to react with protons and thereby release the CO2 as a gas;
wherein the first ion-exchange membrane and the second ion-exchange membrane are configured to maintain a pH differential between the negative electrode and the positive electrode.