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US 2019/0356011 A1Published application
Methods, devices and systems to isolate solid products in molten fluid electrode apparatus
AssigneeVissers Battery Corporation
InventorsDaniel R. Vissers, Manoel Tenorio
Life of this patent
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Abstract
A thermal battery includes a negative electrode and a positive electrode separated from the negative electrode by an electrolyte where at least the positive electrode is in a fluid state at the operating temperature of the battery. A solid product isolation system decreases the concentration of solid products within the fluid positive electrode at least within the region near the electrolyte.
Claims21
An apparatus comprising:
- a fluid negative electrode comprising a negative electrode material, the fluid negative electrode being fluid at least within an operating temperature range of the apparatus;
- a fluid positive electrode comprising a positive electrode material, the fluid positive electrode being fluid at least within the operating temperature range of the apparatus;
- a solid electrolyte positioned between the negative fluid electrode and the fluid positive electrode, the solid electrolyte comprising cations of the negative electrode material and in a solid state at least within the operating temperature range of the apparatus;
- and
- a solid product isolation system configured to decrease, at least within an adjacent electrode region, a concentration of solid products formed within the fluid positive electrode, the adjacent electrode region being within the fluid positive electrode and adjacent to the solid electrolyte.
2 more elements
A thermal battery comprising:
- a negative fluid electrode comprising lithium, the lithium being fluid at least within an operating temperature of the apparatus;
- a fluid positive electrode comprising sulfur, the sulfur being fluid at least within the operating temperature of the apparatus;
- a solid lithium iodide electrolyte positioned between the negative fluid electrode and the fluid positive electrode, the solid lithium iodide electrolyte comprising lithium cations and being solid at least within the operating temperature of the apparatus;
- and
- a solid product isolation system configured to reduce a concentration of di-lithium sulfide (Li2S) at least within an adjacent electrode region within the fluid positive electrode and adjacent to the solid lithium iodide electrolyte.
2 more elements
A lithium sulfur thermal battery comprising:
- a negative fluid electrode comprising lithium, the lithium being fluid at least within an operating temperature of the apparatus;
- a fluid positive electrode comprising sulfur, the sulfur being fluid at least within the operating temperature of the apparatus;
- a solid lithium iodide electrolyte positioned between the negative fluid electrode and the fluid positive electrode, the solid lithium iodide electrolyte comprising lithium cations and being solid at least within the operating temperature of the apparatus;
- and
- a solid product isolation system configured to reduce a concentration of di-lithium sulfide (Li2S) at least within an adjacent electrode region within the fluid positive electrode and adjacent to the solid lithium iodide electrolyte, the solid product isolation system comprising:
- a solid product filter connected to the fluid positive electrode and configured to, during a discharge cycle of the battery, extract fluid positive electrode material comprising di-lithium sulfide (Li2S) solid products from the positive electrode, to remove at least some of the di-lithium sulfide (Li2S) solid products from the material to produce fluid positive electrode material with decreased concentration of di-lithium sulfide (Li2S) solid products, and to add the fluid positive electrode material with decreased concentration of di-lithium sulfide (Li2S) solid products to the fluid positive electrode;
- and
- configured to, during a charge cycle of the battery, extract charged fluid positive electrode material having decreased concentration of di-lithium sulfide (Li2S) solid products from the positive electrode, to add at least some di-lithium sulfide (Li2S) solid products to the material to produce fluid positive electrode material with increased concentration of di-lithium sulfide (Li2S) solid products, and to add the fluid positive electrode material with increased concentration of di-lithium sulfide (Li2S) solid products to the fluid positive electrode.
5 more elements
Dependencies are inferred from the claim text.