Method for forming encapsulated lithium electrodes having glass protective layers
AssigneePolyPlus Battery Company
InventorsSteven J. Visco, Floris Y. Tsang
Life of this patent
Estimating the term…
Abstract
A method for fabricating an active metal electrode involves depositing lithium or other active metal electrode on a protective layer. The protective layer is a glassy or amorphous material that conducts ions of the active metal. It may be deposited on a releasable web carrier or other substrate such as polymer electrolyte layer. Lithium is then deposited on the protective layer. Finally, a current collector is attached to the lithium.
Claims16
A stand-alone active metal negative electrode that is not affixed to a positive electrode, wherein the negative electrode is formed by the following method:
- (a) forming a glassy or amorphous protective layer on a substrate, the protective layer forming a substantially impervious layer which is conductive to ions of an active metal;
- (b) depositing a first active metal layer on the protective layer;
- and
- (c) providing a current collector on the first active metal layer to form the stand-alone active metal electrode.
A stand-alone partially fabricated battery cell that does not include a positive electrode, consisting essentially of:
- a current collector;
- a glassy or amorphous protective layer forming a substantially impervious layer which is a single ion conductor conductive to ions of an active metal;
- an active metal layer provided between the current collector and the protective layer;
- and
- a gel or solid electrolyte provided on the protective layer opposite the active metal layer.
Dependencies are inferred from the claim text.