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US 9,520,627 B2Granted
Ion conducting hybrid membranes
AssigneesInternational Business Machines Corporation, Asahi Kasei Kabushiki Kaisha
InventorsNaga Phani B. Aetukuri, Mark W. Hart, Ho-Cheol Kim, Shintaro Kitajima, Leslie E. Krupp, Bryan D. McCloskey, Robert D. Miller, John Campbell Scott, Winfried Wilcke
Life of this patent
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Abstract
A device includes a membrane that is: (i) impermeable to oxygen, and (ii) insoluble in at least one polar solvent; and ion conducting particles in the membrane. At least some of the particles extend from a first side of the membrane to an opposed second side of the membrane. The thickness of the membrane is 15 μm to 100 μm.
Claims14
A device, comprising:
- a membrane that is:
- (i) impermeable to oxygen, and (ii) insoluble in at least one polar solvent;
- and
- ion conducting particles in the membrane, wherein the ion conducting particles conduct Na, and wherein at least a portion of the particles extend from a first side of the membrane to an opposed second side of the membrane, and wherein the thickness of the membrane is 15 μm to 100 μm.
1 more element
A device, comprising:
- a membrane comprising a polymer selected from cyclo-olefin polymers, poly-para-xylylenes, benzocyclobutenes, olefin addition polymers and copolymers, ring opening metathesis polymers and reduced forms thereof, acyclic diene metathesis polymers and reduced forms thereof, fluorocarbon addition polymers, fluoroether polymers, ring opened cyclobutyl fluoroethers, polyarylenes, polyarylene ethers, polybenzoazoles, polysiloxanes, silsequioxanes, polycarbosilanes, and mixtures and combinations thereof;
- metal oxide lithium ion conducting particles in the membrane, wherein at least a portion of the particles have a first exposed surface projecting from a first side of the membrane and a second exposed surface projecting from an opposed second side of the membrane, and wherein the exposed surfaces of the conducting particles are substantially free of the polymer, and wherein the thickness of the membrane is 15 μm to 100 μm.
A device, comprising:
- a circular membrane comprising a polymer selected from cyclo-olefin polymers, poly-para-xylylenes, benzocyclobutenes, olefin addition polymers and copolymers, ring opening metathesis polymers and reduced forms thereof, acyclic diene metathesis polymers and reduced forms thereof, fluorocarbon addition polymers, fluoroether polymers, ring opened cyclobutyl fluoroethers, polyarylenes, polyarylene ethers, polybenzoazoles, polysiloxanes, silsequioxanes, polycarbosilanes, and mixtures and combinations thereof;
- metal oxide lithium ion conducting particles in a central circular region of the membrane, wherein at least a portion of the particles have a first exposed surface projecting from a first side of the membrane and a second exposed surface projecting from an opposed second side of the membrane, and wherein the exposed surfaces of the conducting particles are substantially free of the polymer, and
- wherein an annular region of the membrane surrounding the central circular region is free of metal oxide lithium ion conducting particles.
Dependencies are inferred from the claim text.