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Title: Composite substrate for bipolar electrodes

Abstract

Substrates for electrode systems, particularly those to be used for bipolar electrodes in zinc-bromine batteries, are disclosed. The substrates preferably include carbon-black as a conductive filler in a polymeric matrix, with reinforcing materials such as glass fibers. Warpage of the zinc-bromine electrodes which was experienced in the prior art and which was believed to be caused by physical expansion of the electrodes due to bromine absorption by the carbon-black, is substantially eliminated when new substrate fabrication techniques are employed. In the pesent invention, substrates are prepared using a lamination process known as glass mat reinforced thermoplastics technology or, in an alternate embodiment, the substrate is made using a slurry process.

Inventors:
 [1];  [2]
  1. (Milwaukee, WI)
  2. (Shorewood, WI)
Issue Date:
Research Org.:
JOHNSON CONTROLS INC
OSTI Identifier:
868605
Patent Number(s):
5173362
Application Number:
07/654,206
Assignee:
Globe-Union, Inc. (Milwaukee, WI) SNL
DOE Contract Number:  
AC04-88AL54304
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
composite; substrate; bipolar; electrodes; substrates; electrode; systems; particularly; zinc-bromine; batteries; disclosed; preferably; carbon-black; conductive; filler; polymeric; matrix; reinforcing; materials; glass; fibers; warpage; experienced; prior; believed; caused; physical; expansion; due; bromine; absorption; substantially; eliminated; fabrication; techniques; employed; pesent; prepared; lamination; process; mat; reinforced; thermoplastics; technology; alternate; embodiment; slurry; reinforcing material; glass fibers; polymeric matrix; slurry process; alternate embodiment; fabrication techniques; glass fiber; substantially eliminated; bipolar electrodes; substantially eliminate; electrode systems; conductive filler; /442/162/429/

Citation Formats

Tekkanat, Bora, and Bolstad, James J. Composite substrate for bipolar electrodes. United States: N. p., 1992. Web.
Tekkanat, Bora, & Bolstad, James J. Composite substrate for bipolar electrodes. United States.
Tekkanat, Bora, and Bolstad, James J. Tue . "Composite substrate for bipolar electrodes". United States. https://www.osti.gov/servlets/purl/868605.
@article{osti_868605,
title = {Composite substrate for bipolar electrodes},
author = {Tekkanat, Bora and Bolstad, James J.},
abstractNote = {Substrates for electrode systems, particularly those to be used for bipolar electrodes in zinc-bromine batteries, are disclosed. The substrates preferably include carbon-black as a conductive filler in a polymeric matrix, with reinforcing materials such as glass fibers. Warpage of the zinc-bromine electrodes which was experienced in the prior art and which was believed to be caused by physical expansion of the electrodes due to bromine absorption by the carbon-black, is substantially eliminated when new substrate fabrication techniques are employed. In the pesent invention, substrates are prepared using a lamination process known as glass mat reinforced thermoplastics technology or, in an alternate embodiment, the substrate is made using a slurry process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {12}
}

Patent:

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