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Reactive deposition for electrochemical cell production

A unit cell, reaction technology, applied in the field of reactive deposition forming electrochemical unit cell structure, improved structure, fuel cell

Inactive Publication Date: 2006-08-16
NANOGRAM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some fuel cell designs present material performance challenges

Method used

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  • Reactive deposition for electrochemical cell production
  • Reactive deposition for electrochemical cell production
  • Reactive deposition for electrochemical cell production

Examples

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example 1

[0282] Example 1 - Laser pyrolysis synthesis of related powders using aerosols

[0283] This example presents the synthesis of lithium nickel cobalt oxide by laser pyrolysis using aerosols. Laser pyrolysis is used essentially as figure 1 , 3 and the reaction chamber described in 4.

[0284] Lithium nitrate (LiNO 3 ) (99%, 1.1 moles), (Ni(NO 3 )x6H 2 O) (technical grade, 0.7 mole) and (Co(NO 3 )x6H 2 O) (ACS grade, 0.2 mol) precursor was dissolved in deionized water. Aluminum nitrate precursor was obtained from Alfa Aesar Inc., Ward Hill, MA. The solution was stirred on a hot plate using a magnetic stirrer. The aqueous metal precursor solution is injected into the reaction chamber as an aerosol. Will C 2 h 4 Gas is used as the laser absorbing gas, and nitrogen is used as the inert diluent gas. will contain metal precursors, N 2 , O 2 and C 2 h 4 The reactant mixture is introduced into the reactant nozzle for spraying into the reaction chamber. In Table 1 other...

example 2

[0288] This example presents aluminum-doped lithium manganate and LiAlO by laser pyrolysis using aerosol 2 Synthesis. Laser pyrolysis is used essentially as figure 1 , 3 and the reaction chamber described in 4.

[0289] Lithium nitrate (LiNO 3 ) (99%, 2.3 moles or 2.6M), (Mn(NO 3 ) solution) (50w / w, 2.3 moles or 1.9M) and (Al(NO 3 )x9H 2 O) (99.999%, 2.3 molar or 0.1 M) precursor was dissolved in deionized water. Aluminum nitrate precursor was obtained from Alfa Aesar Inc., Ward Hill, MA. The solution was stirred on a hot plate using a magnetic stirrer. The aqueous metal precursor solution is injected into the reaction chamber as an aerosol. Will C 2 h 4 Gas is used as the laser absorbing gas, and nitrogen is used as the inert diluent gas. will contain metal precursors, N 2 , O 2 and C 2 h 4 The reactant mixture is introduced into the reactant nozzle for spraying into the reaction chamber. Additional parameters for the laser pyrolysis synthesis associated with...

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Abstract

Photoreactive deposition can be effectively used to deposit one or more components of an electrochemical unit cell. Specifically, electrodes, electrolytes and electrical interconnects can be deposited from the reactive flow. In certain embodiments, the reaction stream includes a reactant stream that intersects the light beam to drive a reaction in the photoreaction zone to produce a product deposited on the substrate (422). This method is extremely versatile for the manufacture of a variety of compositions useful particularly in electrochemical cells and fuel cells. The properties of the material including density and porosity can be adjusted based on the deposition properties and any subsequent processing including, for example, thermal treatment.

Description

[0001] cross reference application [0002] This application claims priority to pending U.S. Provisional Patent Application 60 / 476,451, filed June 6, 2003, entitled "Improved Material Preparation Approaches For Fuel Cells" by Horne, and to Horne, filed June 19, 2003 Priority to US Provisional Patent Application 60 / 479,698, entitled "Material Processing For Tubular Ceramic Fuel Cells And Metallic Interconnects," the contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to methods of forming electrochemical cells, particularly fuel cells. In particular, the present invention relates to reactive deposition methods for forming electrochemical cell structures. The invention also relates to an improved construction of electrochemical cells. Background technique [0004] Electrochemical unit cells generally comprise redox reactions in separate half-cells that are suitably connected for ion flow as well as electrical current...

Claims

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Application Information

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IPC IPC(8): C23C16/00
CPCC23C18/14C23C18/06C23C18/1241C23C18/1204C23C18/1216C23C18/143
Inventor 克雷格·R·霍恩威廉·E·麦戈文罗伯特·B·林奇罗纳德·J·莫索
Owner NANOGRAM
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