US 2021/0242490 A1 · ALL-SOLID SECONDARY BATTERY AND METHOD OF PREPARING SAME

Abstract

An all-solid secondary battery includes a solid electrolyte layer disposed between an anode layer and a cathode layer, where the solid electrolyte layer contains a first solid electrolyte layer including a first solid electrolyte and a second electrolyte layer including a second solid electrolyte, where the first solid electrolyte is disposed proximate to the anode layer, the second solid electrolyte layer is disposed proximate to the cathode layer, and the first solid electrolyte has a lithium ion conductivity greater than a lithium ion conductivity of the second solid electrolyte, where a difference between the lithium ion conductivity of the first solid electrolyte and the lithium ion conductivity of the second solid electrolyte is equal to or greater than about 2 mS/cm.

Claims33

Dependent claims

An all-solid secondary battery comprising:

a solid electrolyte layer disposed between an anode layer and a cathode layer,
wherein the solid electrolyte layer comprises
a first solid electrolyte layer comprising a first solid electrolyte, and
a second solid electrolyte layer comprising a second solid electrolyte, wherein
the first solid electrolyte layer is disposed proximate to the anode layer,
the second solid electrolyte layer is disposed proximate to the cathode layer, and
the first solid electrolyte has a lithium ion conductivity which is greater than a lithium ion conductivity of the second solid electrolyte, and
a difference between the lithium ion conductivity of the first solid electrolyte and the lithium ion conductivity of the second solid electrolyte is equal to or greater than about 2 millisiemens per centimeter.

5 more elements

Dependencies are inferred from the claim text.

All-solid secondary battery and method of preparing same

Life of this patent

All-solid secondary battery and method of preparing same

Life of this patent

Abstract

Claims33