Treating sulfide glass surfaces and making solid state laminate electrode assemblies
AssigneePolyPlus Battery Company
InventorsSteven J. Visco, Vitaliy Nimon, Yevgeniy S. Nimon, Bruce D. Katz, Richard L. Swisher
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Abstract
Methods for making solid-state laminate electrode assemblies include methods of forming a solid electrolyte interphase (SEI) by ion implanting nitrogen and/or phosphorous into the glass surface by ion implantation.
Claims13
1-11. (canceled)
A battery cell, comprising:
- an anode;
- a cathode;
- and
- a solid-state laminate electrode assembly, comprising:
- a lithium ion conducting sulfide glass substrate, the substrate comprising a sulfide glass solid electrolyte sheet having room temperature Li ion conductivity of at least 10−5 S/cm, the sulfide glass substrate having first and second major surfaces;
- a solid electrolyte interphase (SEI) layer comprising lithium and one or both of nitrogen and phosphorous at the first major surface of the sulfide glass substrate.
The battery cell of claim 1, wherein the SEI layer is continuous.
The battery cell of claim 1, wherein the SEI comprises lithium nitride.
The battery cell of claim 1, wherein the SEI comprises lithium phosphide.
The battery cell of claim 1, wherein the SEI is a continuous layer of a lithium nitride and/or lithium phosphide compound.
The battery cell of claim 1, wherein the SEI is not greater than 10 nm deep.
The battery cell of claim 1, wherein the SEI is not greater than 10-100 nm deep.
The battery cell of claim 1, wherein the SEI is not greater than 100-1000 nm deep.
The battery cell of claim 1, wherein the cathode is a lithium ion intercalating transition metal oxide electrode adjacent to the second major surface of the sulfide glass substrate of the solid-state laminate electrode assembly.
Dependencies are inferred from the claim text.