Conductive array, composite membrane including the conductive array, lithium battery including the composite membrane, and method of manufacturing the conductive array

Patent metadata

Field	Value
Publication number	US-2020220179-A1
Application number	US-201916730007-A
Country	US
Kind code	A1
Filing date	Dec 30, 2019
Priority date	Jan 3, 2019
Publication date	Jul 9, 2020
Grant date	—

Abstract

A conductive array, a composite membrane including the conductive array, a lithium battery, and a method of manufacturing the conductive array. The conductive array includes a plurality of ion conductive inorganic particles spaced apart from each other, wherein the circumferences (x) and the width (y) of a top surface of an ion conductive inorganic particle of the plurality of ion conductive inorganic particles in plan view satisfy Inequality (1),
x ≥3.2 y , and  Inequality (1)

a distance between a first ion conductive inorganic particle of the plurality of ion conductive inorganic particles and an adjacent second ion conductive inorganic particle in a plan view is 0% to about 20% of the width of the surface of the ion conductive inorganic particle.

First claim

What is claimed is:

1 . A conductive array comprising a plurality of ion conductive inorganic particles spaced apart from each other, wherein
a circumference and a width of a surface of an ion conductive inorganic particle of the plurality of ion conductive inorganic particles satisfy Inequality (1)
x ≥3.2 y,   Inequality (1)

wherein x is a circumference and y is a width, and a distance between a first ion conductive inorganic particle of the plurality of ion conductive inorganic particles and an adjacent second ion conductive inorganic particle in a plan view is 0% to about 20% of the width of the surface of the ion conductive inorganic particle.

2 . The conductive array of claim 1 , wherein
the ion conductive inorganic particles are three-dimensional particles having a height perpendicular to the surface of greater than 0 millimeter.

3 . The conductive array of claim 2 , wherein
at least two ion conductive inorganic particles of the plurality of ion conductive inorganic particles have a same height.

4 . The conductive array of claim 1 , wherein
at least two ion conductive inorganic particles of the plurality of ion conductive inorganic particles have a top surface and a bottom surface opposite the top surface.

5 . The conductive array of claim 4 , wherein
the top surface and the bottom surface of each of a first ion conductive inorganic particle and a second ion conductive inorganic particle of the plurality of ion conductive inorganic particles have a same shape and a same surface area.

6 . The conductive array of claim 4 , wherein
a surface area of a top surface and a bottom surface of a first ion conductive inorganic particle and a surface area of a top surface and a bottom surface of a second ion conductive inorganic particle of the plurality of ion conductive inorganic particles are different.

7 . The conductive array of claim 1 , wherein
the width (y) is a maximum width of the ion conductive inorganic particle of the plurality of ion conductive inorganic particles in the plan view.

8 . The conductive array of claim 1 , wherein
a total top surface area of the plurality of ion conductive inorganic particles in the plan view is equal to greater than about 80% of a total bottom surface area of the conductive array, the plurality of ion conductive inorganic particles each have a bottom surface which is opposite the top surface of each ion conductive inorganic particle of the plurality of ion conductive inorganic particles in the plan view, and a total bottom surface area of the plurality of ion conductive inorganic particles is equal to or greater than about 80% of a total bottom surface area of the conductive array in the plan view.

9 . The conductive array of claim 1 , wherein
the width of each of the plurality of ion conductive inorganic particles is about 98% to about 102% of an average width of the ion conductive inorganic particles of the plurality of ion conductive inorganic particles.

10 . The conductive array of claim 1 , wherein
the plurality of ion conductive inorganic particles comprise least one of a glass active metal ion conductor, an amorphous active metal ion conductor, a ceramic active metal ion conductor, or a glass-ceramic active metal ion conductor.

11 . The conductive array of claim 1 , wherein the plurality of ion conductive inorganic particles comprise at least one of Na 1+x Zr 2 Si x P 3-x O 12 , wherein 0<x<3, Li 1+x+y Al x Ti 2-x Si y P 3-y O 12 , wherein 0<x<2, 0≤y<3, BaTiO 3 , Pb(Zr a Ti 1-a )O 3 , wherein 0≤a≤1, Pb 1-x La x Zr 1-y Ti y O 3 , wherein 0≤x<1 0≤y<1, and 0≤a≤1, Pb(Mg 3 Nb 2/3 )O 3 —PbTiO 3 , HfO 2 , SrTiO 3 , SnO 2 , CeO 2 , Na 2 O, MgO, NiO, CaO, BaO, ZnO, ZrO 2 , Y 2 O 3 , Al 2 O 3 , TiO 2 , SiO 2 , SiC, Li 3 PO 4 , Li x Ti y (PO 4 ) 3 , wherein 0<x<2 and 0<y<3, Li x Al y Ti z (PO 4 ) 3 , wherein 0<x<2, 0<y<1, and 0<z<3, Li 1+x+y (Al a Ga 1-a ) x (Ti b Ge 1-b ) 2-x Si y P 3-y O 12 , wherein 0≤x≤1, 0≤y≤1, 0≤a≤1, and 0≤b≤1, Li x La y TiO 3 , wherein 0<x<2 and 0<y<3, Li x Ge y P z S w , wherein 0<x<4, 0<y<1, 0<z<1, and 0<w<5, Li x N y , wherein 0<x<4 and 0<y<2, SiS 2 , Li x Si y S z , wherein 0<x<3, 0<y<2, 0<z<4, Li x P y S z , wherein 0<x<3, 0<y<3, and 0<z<7, Li 2 O, LiF, LiOH, Li 2 CO 3 , LiAlO 2 , Li 2 O—Al 2 O 3 —SiO 2 —P 2 O 5 —TiO 2 —GeO 2 ceramic, a Garnet ceramic, or Li 3+x La 3 M 2 O 12 , wherein M is Te, Nb, or Zr and x is an integer of 1 to 10.

12 . A composite membrane comprising:
the conductive array of claim 1 ; and an organic material between the plurality of ion conductive inorganic particles.

13 . The composite membrane of claim 12 , wherein
the composite membrane is a foldable, flexible membrane.

14 . The composite membrane of claim 12 , wherein
the composite membrane has a tensile strength of equal to or greater than about 1 megaPascal, and a yield strain of equal to or greater than about 1%.

15 . The composite membrane of claim 12 , wherein
the composite membrane has a surface having a sea-island structure in which the plurality of ion conductive inorganic particles are discontinuously arranged in a continuous organic film comprising an organic material, or the composite membrane has a cross section having a structure in which the ion conductive inorganic particles are alternately aligned with regions of the organic film.

16 . The composite membrane of claim 12 , wherein
an amount of the plurality of ion conductive inorganic particles is from about 10 parts by weight to about 90 parts by weight, based on the total weight of 100 parts by weight of the composite membrane.

17 . A lithium battery comprising the composite membrane of claim 12 .

18 . The lithium battery of claim 17 , wherein
the lithium battery is an all-solid-state battery or a lithium-air battery.

19 . A method of manufacturing the conductive array of claim 1 , the method comprising:
forming a plurality of openings in a substrate; filling the openings of the substrate with precursors of a plurality of ion conductive inorganic particles; heat-treating the substrate filled with the plurality of ion conductive inorganic particles; and transferring the ion conductive inorganic particles to form the conductive array.

20 . The method of claim 19 , wherein
the substrate comprises a material comprising silicon.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Wonsung
• Choi Kyounghwan
• KIM Youngeal
• Kim Hyunjin
• Jeong Huisu

Classifications

• H01M10/0562 Primary

  Solid materials · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01B13/0016

  for heat treatment · CPC title

• H01M12/08

  composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title

• H01M2300/0068

  inorganic · CPC title