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US 9,825,280 B2Granted
Semi-solid electrode cell having a porous current collector and methods of manufacture
Assignee24M Technologies, Inc.
InventorsYet-Ming Chiang, William Craig Carter, James C. Cross, III, Ricardo Bazzarella, Naoki Ota
Life of this patent
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Abstract
An electrochemical cell includes an anode, a semi-solid cathode, and a separator disposed therebetween. The semi-solid cathode includes a porous current collector and a suspension of an active material and a conductive material disposed in a non-aqueous liquid electrolyte. The porous current collector is at least partially disposed within the suspension such that the suspension substantially encapsulates the porous current collector.
Claims23
An electrochemical cell, comprising:
- an anode cavity at least partially defined by a separator;
- a first porous current collector disposed in the anode cavity and configured to substantially fill the anode cavity;
- an anode semi-solid mixture disposed in the anode cavity at least partially embedded in the first porous current collector thereby forming a finished anode;
- a cathode cavity at least partially defined by the separator;
- a second porous current collector disposed in the cathode cavity and configured to substantially fill the cathode cavity;
- and
- a cathode semi-solid mixture disposed in the cathode cavity at least partially embedded in the second porous current collector thereby forming a finished cathode,
- wherein at least one of the first porous current collector and second porous current collector has a thickness in the range of 200 microns to about 5,000 microns;
- and
- wherein the thickness of the finished anode is greater than the thickness of the first porous current collector and/or the thickness of the finished cathode is greater than the thickness of the second porous current collector.
7 more elements
An electrochemical cell, comprising:
- a cathode;
- an anode cavity at least partially defined by a separator;
- a porous current collector disposed in the anode cavity and configured to substantially fill the anode cavity, the porous current collector having a thickness in the range of 200 microns to about 5,000 microns;
- and
- an anode semi-solid mixture disposed in the anode cavity at least partially embedded in the porous current collector thereby forming a finished anode, the finished anode having a thickness greater than the thickness of the porous current collector,
- the separator disposed between the cathode and the anode semi-solid mixture.
3 more elements
An electrochemical cell, comprising:
- an anode;
- a cathode cavity at least partially defined by a separator;
- a porous current collector disposed in the cathode cavity and configured to substantially fill the cathode cavity, the porous current collector having a thickness in the range of 200 microns to about 5,000 microns;
- and
- a cathode semi-solid mixture disposed in the cathode cavity at least partially embedded in the porous current collector thereby forming a finished cathode, the finished cathode having a thickness greater than the thickness of the porous current collector,
- the separator disposed between the anode and the cathode semi-solid mixture.
3 more elements
Dependencies are inferred from the claim text.