Ion-conducting solid-state separator

Patent metadata

Field	Value
Publication number	US-9991486-B2
Application number	US-201213983741-A
Country	US
Kind code	B2
Filing date	Feb 7, 2012
Priority date	Feb 8, 2011
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

Solid-state separator for electrochemical systems, wherein the solid-state separator consists of a plurality of ion-conducting solid-state segments, and the individual solid-state segments are connected by means of a deformable, electrically insulating material.

First claim

The invention claimed is:

1. Solid-state separator for electrochemical systems, the solid-state separator comprising a plurality of ion-conducting solid-state segments, and individual solid-state segments are connected by means of a deformable, electrically insulating material present between joints and/or guides of the ion-conducting solid state segments ensuring adhesion and providing flexibilty, wherein the ion-conducting solid-state segments are thin plate-shaped segments selected from the group consisting of a glass ceramic formed from Li 2 O—Al 2 O 3 —SiO 2 —P 2 O 5 —TiO 2 —GeO 2 , β-aluminum oxide, Cu 16 Rb 4 I 7 Cl 13 , La 0.95 Sr 0.05 F 2.95 , LaF 3 , Ag 4 Rbl 5 , Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 , Li 0.34 La 0.51 TiO 2.94 , NA 1+x Zr 2 Si x P 3−x O 12 with 0<x<3, and Li 2+2x Zn 1−x GeO 4 with −0.36<X<0.87, and wherein the ion-conducting solid-state segments resemble the main part of the solid-state separator being present in an amount of at least 85 Vol. %.

2. Solid-state separator according to claim 1 , wherein the deformable, electrically insulating material is an adhesive material, a polymer, an organic liquid, or an inorganic liquid.

3. Solid-state separator according to claim 1 , wherein the electrically insulating material is selected from the group consisting of methyl methacrylate adhesives, radiation-curing adhesives, phenol formaldehyde resin adhesives, silicones, silane-crosslinking polymer adhesives, epoxy resin adhesives, polyurethane adhesives, imidazolium compounds, pyridinium compounds, piperidinium compounds, tetraalkyl ammonium compounds and thermoplastic polymers.

4. Solid-state separator according to claim 1 , wherein the ion-conducting solid-state segments have an average diameter of no more than 100 mm.

5. Solid-state separator according to claim 1 , wherein the ion-conducting solid-state segments have a thickness of no more than 1 mm.

6. Solid-state separator according to claim 1 , wherein the ion-conducting solid-state segments are circular, triangular, square or honeycomb-shaped.

7. Solid-state separator according to claim 1 , wherein the ion-conducting solid-state segments are interlocked.

8. Solid-state separator according to claim 1 , wherein the electrically insulating material is present between joints of the ion-conducting solid-state segments.

9. Solid-state separator according to- claim 1 , wherein the solid-state separator has a thickness of from 1 to 0.02 mm, and a width of from 200 mm to 2000 mm.

10. Solid-state separator according to claim 1 , wherein the electrically insulating material is no more than 50 vol. -% of said solid-state separator.

11. A solid-state separator according to claim 1 , being provided in devices selected from the group consisting of sensors, electrochromic systems, battery cells, primary battery cells, secondary battery cells, redox flow systems, electrochemical synthesis devices and electrolyzers.

12. Production of the solid-state separator according to claim 1 , comprising the steps of:
(a) preparing the ion-conducting solid-state segments; and
(b) connecting the ion-conducting solid-state segments by means of electrically insulating material.

Assignees

• Berger Thomas
• Hagen Markus
• Fraunhofer Ges Forschung

Inventors

• Berger Thomas
• Hagen Markus

Classifications

• H01M8/1065 Primary

  characterised by the form, e.g. perforated or wave-shaped · CPC title

• H01M2/18

  Electricity · mapped topic

• Y02E60/521

  Cross-Sectional Technologies · mapped topic

• H01M2/145

  Electricity · mapped topic

• H01M8/023

  Porous and characterised by the material · CPC title