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US 10,312,504 B2Granted
Aluminum anode active material
AssigneeStoreDot Ltd.
InventorsDoron Burshtain, Nir Kedem, Daniel Aronov
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AssigneeStoreDot Ltd.
InventorsDoron Burshtain, Nir Kedem, Daniel Aronov
Estimating the term…
Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.
An anode comprising anode active material particles which comprise aluminum particles, wherein a lithium-containing layer replaces a native oxide on the surface of the aluminum particles.
An anode comprising anode active material particles which comprise aluminum particles, wherein a layer of B2O3 replaces a native oxide on the surface of the aluminum particles.
An anode for a lithium-ion device comprising an anode active material comprising aluminum nanoparticles from which a native oxide has been removed from a surface thereof and having a lithium-containing layer on the surface of the aluminum nanoparticles from which the native oxide has been removed;
Dependencies are inferred from the claim text.