High energy density redox flow device
First Claim
1. An electrochemical cell comprising:
- an anode;
a cathode; and
an ion-permeable membrane disposed between the anode and the cathode;
wherein at least one of the anode and the cathode includes an electrode composition comprising ion storage compound particles capable of taking up or releasing ions, and 0.5% to 10% by volume of electronically conductive particles disposed in a liquid electrolyte, the ion storage compound particles having a polydisperse size distribution and a particle packing fraction of at least 50 vol %.
3 Assignments
0 Petitions
Accused Products
Abstract
Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.
-
Citations
22 Claims
-
1. An electrochemical cell comprising:
-
an anode; a cathode; and an ion-permeable membrane disposed between the anode and the cathode; wherein at least one of the anode and the cathode includes an electrode composition comprising ion storage compound particles capable of taking up or releasing ions, and 0.5% to 10% by volume of electronically conductive particles disposed in a liquid electrolyte, the ion storage compound particles having a polydisperse size distribution and a particle packing fraction of at least 50 vol %. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An electrochemical cell comprising:
-
an anode; a cathode; and an ion-permeable membrane disposed between the anode and the cathode; wherein at least one of the anode and the cathode includes a semi-solid electrode composition comprising ion storage compound particles capable of taking up or releasing ions, and 0.5% to 10% by volume of electronically conductive particles disposed in a liquid electrolyte, the ion storage compound particles having a polydisperse size distribution and a particle packing fraction of at least 50 vol %. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. An electrochemical cell comprising:
-
an anode; a cathode; and an ion-permeable membrane disposed between the anode and the cathode; wherein at least one of the anode and the cathode includes an electrode composition comprising a suspension of ion storage compound particles capable of taking up or releasing ions, and 0.5% to 10% by volume of electronically conductive particles disposed in a liquid electrolyte, the ion storage compound particles having a polydisperse size distribution and a particle packing fraction of at least 50 vol %. - View Dependent Claims (17, 18, 19, 20, 21, 22)
-
Specification