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US 2018/0019492 A1Published application
Waste management in electrochemical systems
AssigneeL3 Open Water Power, Inc.
InventorsJason R. Kovacs, Ian S. McKay, David H. Porter, Thomas B. Milnes
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Abstract
Waste management in electrochemical systems, such as electrochemical systems in which an electrochemically active material comprising aluminum is employed, is generally described.
Claims22
A method of operating an electrochemical system, the method comprising:
- transporting an aqueous electrolyte of the electrochemical system through a non-electrode porous medium such that a solid comprising aluminum is precipitated on a surface of the non-electrode porous medium instead of on electrodes of the electrochemical system,
- wherein aluminum within the solid originates from a product of an electricity-generating electrochemical reaction between aluminum and water carried out using electrodes of the electrochemical system.
(canceled)
A method for collecting aluminate waste, comprising:
- transporting a super-saturated aqueous aluminate stream through a non-electrode open cell foam such that aluminum hydroxide that is the product of an electricity-generating electrochemical reaction between aluminum and water is precipitated on the non-electrode open cell foam, wherein at least 50% wt of the precipitation occurs within the non-electrode open cell foam instead of on an electrode.
An electrochemical system, comprising:
- an electrode comprising an electrochemically active anode material comprising aluminum;
- an electrode comprising an electrochemically active cathode material;
- and
- a non-electrode porous medium,
- wherein the non-electrode porous medium is configured such that a solid comprising aluminum that is the product of an electricity-generating electrochemical reaction between aluminum and water can be precipitated on a surface of the non-electrode porous medium instead of on the electrodes.
2 more elements
(canceled)
Dependencies are inferred from the claim text.