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Title: Air cathode structure manufacture

Abstract

An improved air cathode structure for use in primary batteries and the like. The cathode structure includes a matrix active layer, a current collector grid on one face of the matrix active layer, and a porous, nonelectrically conductive separator on the opposite face of the matrix active layer, the collector grid and separator being permanently bonded to the matrix active layer. The separator has a preselected porosity providing low IR losses and high resistance to air flow through the matrix active layer to maintain high bubble pressure during operation of the battery. In the illustrated embodiment, the separator was formed of porous polypropylene. A thin hydrophobic film is provided, in the preferred embodiment, on the current collecting metal grid.

Inventors:
 [1];  [2]
  1. (Palo Alto, CA)
  2. (Los Altos Hills, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
865438
Patent Number(s):
4514474
Assignee:
Lockheed Missiles & Space Company, Inc. (Sunnyvale, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
air; cathode; structure; manufacture; improved; primary; batteries; matrix; active; layer; current; collector; grid; porous; nonelectrically; conductive; separator; opposite; permanently; bonded; preselected; porosity; providing; losses; resistance; flow; maintain; bubble; pressure; operation; battery; illustrated; embodiment; formed; polypropylene; hydrophobic; film; provided; preferred; collecting; metal; cathode structure; matrix active; current collector; electrically conductive; preferred embodiment; air flow; active layer; air cathode; bubble pressure; collector grid; current collecting; collecting metal; hydrophobic film; metal grid; conductive separator; /429/

Citation Formats

Momyer, William R., and Littauer, Ernest L. Air cathode structure manufacture. United States: N. p., 1985. Web.
Momyer, William R., & Littauer, Ernest L. Air cathode structure manufacture. United States.
Momyer, William R., and Littauer, Ernest L. Tue . "Air cathode structure manufacture". United States. https://www.osti.gov/servlets/purl/865438.
@article{osti_865438,
title = {Air cathode structure manufacture},
author = {Momyer, William R. and Littauer, Ernest L.},
abstractNote = {An improved air cathode structure for use in primary batteries and the like. The cathode structure includes a matrix active layer, a current collector grid on one face of the matrix active layer, and a porous, nonelectrically conductive separator on the opposite face of the matrix active layer, the collector grid and separator being permanently bonded to the matrix active layer. The separator has a preselected porosity providing low IR losses and high resistance to air flow through the matrix active layer to maintain high bubble pressure during operation of the battery. In the illustrated embodiment, the separator was formed of porous polypropylene. A thin hydrophobic film is provided, in the preferred embodiment, on the current collecting metal grid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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