Anodeless all-solid-state battery including composite structure layer and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-2026074188-A1
Application number	US-202519391815-A
Country	US
Kind code	A1
Filing date	Nov 17, 2025
Priority date	Oct 21, 2022
Publication date	Mar 12, 2026
Grant date	—

Abstract

An anodeless all-solid-state battery includes an anode current collector, a composite structure layer positioned on the anode current collector, a solid electrolyte positioned on the composite structure layer, and a cathode positioned on the solid electrolyte, in which the composite structure layer includes a carbon layer including a carbon material, and a metal deposition layer positioned on the carbon layer and including lithiophilic metal particles.

First claim

What is claimed is:

1 . A method of manufacturing an anodeless all-solid-state battery, the method comprising:
forming a carbon layer by applying a slurry including a carbon material, a binder, and a solvent on an anode current collector; forming a composite structure layer on the anode current collector by applying a metal deposition layer comprising lithiophilic metal particles on the carbon layer; and stacking a solid electrolyte and a cathode on the composite structure layer.

2 . The method of claim 1 , wherein the carbon material comprises at least one of a spherical nano-conductive material, a carbon nanotube (CNT), a carbon fiber, or combinations thereof.

3 . The method of claim 1 , wherein the binder comprises at least one of polyvinylidene fluoride (PVDF), sodium carboxymethyl cellulose (CMC), polyethylene oxide (PEO), or combinations thereof, and
the solvent comprises at least one of N-methyl-2-pyrrolidone (NMP), water, ethanol, isopropanol, or combinations thereof.

4 . The method of claim 1 , wherein the slurry comprises 1% to 10% by weight of the binder with respect to a solid content thereof.

5 . The method of claim 1 , wherein the lithiophilic metal particles are made from at least one of silver (Ag), zinc (Zn), magnesium (Mg), bismuth (Bi), tin (Sn), gold (Au), platinum (Pt), palladium (Pd), aluminum (Al), or combinations thereof.

6 . The method of claim 1 , wherein the metal deposition layer is applied to have a thickness in a range of 100 to 1000 nm.

7 . The method of claim 1 , wherein the metal deposition layer is formed by depositing the lithiophilic metal particles using any one of a vacuum deposition method, a sputtering method, and a plating method.

8 . The method of claim 1 , wherein based on the anodeless all-solid-state battery being charged, a lithium layer including lithium is formed between the carbon layer and the solid electrolyte.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Im Ga Hyeon
• Kim Yun Sung
• Kim So Yeon
• Lee Kyu Joon
• Min Hong Seok
• Lee Yoon Kwang

Classifications

• H01M2004/027

  Negative electrodes · CPC title

• H01M2004/021

  Physical characteristics, e.g. porosity, surface area · CPC title

• H01M10/0585 Primary

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title

• H01M4/669

  Steels · CPC title

• H01M4/668

  Composites of electroconductive material and synthetic resins · CPC title