Lithium electrode for lithium metal battery and method of manufacturing the lithium electrode

Patent metadata

Field	Value
Publication number	US-2016056501-A1
Application number	US-201514932656-A
Country	US
Kind code	A1
Filing date	Nov 4, 2015
Priority date	May 2, 2012
Publication date	Feb 25, 2016
Grant date	—

Abstract

Disclosed are a lithium electrode for a lithium metal battery, which uses a solid high-ionic conductor having a three-dimensional (3D) porous structure, wherein a lithium metal or lithium alloy is filled into each pore and dispersed, and a method for manufacturing the lithium electrode. By applying a solid high-ionic conductor having a 3D porous structure, an ion conduction path is secured in the lithium electrode using the solid high-ionic conductor instead of a conventional liquid electrolyte, electrical-chemical reactivity in charging and discharging are further improved, and shelf life and high rate capability are enhanced.

First claim

1 . A lithium electrode for a lithium metal battery, the lithium electrode comprising:
a solid high-ionic conductor having a 3D porous structure; a lithium metal or lithium alloy filled in a plurality of open pores of the 3D porous structure; and a collector coupled onto a surface of the solid high-ionic conductor.

2 . The lithium electrode of claim 1 , wherein the lithium metal or lithium alloy is filled in each open pore of the 3D porous structure.

3 . The lithium electrode of claim 1 , further comprising a reaction activating material coated onto an interface between the solid high-ionic conductor and the lithium metal to improve interfacial reaction.

4 . The lithium electrode of claim 3 , wherein the reaction activating material is selected from the group consisting of aluminium (Al), indium (In) metal, Al 2 O 3 , ZrO 2 , ceramic materials, and combinations thereof.

5 - 7 . (canceled)

8 . The method of claim 5 , wherein the solid high-ionic conductor is manufactured with any one or more materials selected from the group consisting of LiSICON (γ-Li 3 PO 4 derivative), Thio-LiSICON (Li 3.25 Ge 0.25 P 0.75 S 4 derivative), NaSiCON (NaZr 2 P 3 O 12 derivative), Perovskite (La 2/3 Li1 1/3 TiO 3 derivative), Garnet (Li 5 La 3 M 2 O 12 , M=Ta,Nb derivative), LiPON, LiPOS, LiSON, and LiSIPON.

9 - 13 . (canceled)

Assignees

• Hyundai Motor Co Ltd

Inventors

• Ryu Hee Yeon
• Lee Yoon Ji
• Woo Hee Jin
• Rhee Jun Ki
• Lee Ki Chun

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M10/0562 Primary

  Solid materials · CPC title

• H01M4/62 Primary

  Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title

• H01M4/382

  Lithium (H01M4/405 takes precedence) · CPC title

• H01M2300/0068

  inorganic · CPC title