Anode for all solid cell and fabrication method of the same

Patent metadata

Field	Value
Publication number	US-11735762-B2
Application number	US-202016916847-A
Country	US
Kind code	B2
Filing date	Jun 30, 2020
Priority date	Oct 13, 2017
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

Provided are an anode for an all solid cell and a method of fabricating the same. The anode may include an anode current collector, a conductive material of which one end contacts a part of the anode current collector, a conductive coating layer surrounding the conductive material, an anode active material which contacts the other end of the conductive material, and a solid electrolyte. The conductive coating layer may prevent the conductive material and the solid electrolyte from being electrically connected to each other.

First claim

What is claimed is:

1. A method of fabricating an anode for an all solid cell, comprising:
providing a conductive material;
forming a conductive coating layer on the conductive material by heat-treating at a temperature of about 300 to 700° C.;
providing an anode current collector of which one part contacts one end of the conductive material;
providing an anode active material to contact the other end of the conductive material; and
providing a solid electrolyte which is electrically separated from the conductive material by the conductive coating layer;
wherein the conductive coating layer comprises at least one coating material comprising P 2 O 5 , B 2 O 3 , and/or SiO 2 .

2. The method of claim 1 , wherein the conductive coating layer comprises one or more nonconductive oxides.

3. The method of claim 1 , wherein the conductive coating layer comprises an amount of about 1 to 3 wt % of a coating material based on the total weight of the conductive material.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Iucf Hyu
• Univ Hanyang Ind Univ Coop Found

Inventors

• Kwon Oh Min
• Yoon Yong Sub
• Noh Sung Woo
• Choi Sun Ho
• Cho Moon Ju
• Shin Dong Wook
• Park Chan Hwi

Classifications

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M4/04

  Processes of manufacture in general · CPC title

• H01M4/1391

  of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title

• H01M4/52

  of nickel, cobalt or iron · CPC title

• H01M10/0565

  Polymeric materials, e.g. gel-type or solid-type · CPC title