Electrode material with core-shell structure
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorMonique N. Richard
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Abstract
The present invention discloses a composite material having an ionic and electronic conductive outer shell with an active material inner core located within the outer shell. The outer shell can be impervious to a gas and a liquid, and in some instances contains a compound such as SiO2, Al2O3, P2S5, and Li2S. The composite material may or may not have a secondary outer shell that is located on an exterior of the outer shell. The outer shell and/or the secondary outer shell can contain a compound such as SiO2, Al2O3, P2S5, and/or Li2S. In some instances, the outer shell contains Li2S:P2S5, while in other instances, the outer shell contains LiPON. In addition, the inner core can contain an element such as lithium, sodium, potassium, and the like.
Claims19
A composite material comprising:
- an ionic and electronic conductive outer glass shell that is impervious to a gas and a liquid;
- an active material inner core located within said outer shell.
A battery comprising:
- a positive electrode;
- an electrolyte;
- a negative electrode having a plurality of composite particles and a binding agent;
- said plurality of composite particles having an ionic and electronic conductive outer shell and an active material inner core located within said outer shell.
Dependencies are inferred from the claim text.