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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 present 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. 4 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7205862
Patent Number(s):
5173362 A
Application Number:
PPN: US 7-654206
Assignee:
Globe-Union, Inc., Milwaukee, WI (United States) PTO; EDB-94-088119
DOE Contract Number:  
AC04-88AL54304
Resource Type:
Patent
Resource Relation:
Patent File Date: 1 Feb 1991
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; ELECTRODES; SUBSTRATES; ZINC-BROMINE BATTERIES; DEFORMATION; MATRIX MATERIALS; REINFORCED MATERIALS; SYNTHESIS; ELECTRIC BATTERIES; ELECTROCHEMICAL CELLS; MATERIALS; METAL-NONMETAL BATTERIES; 250903* - Energy Storage- Batteries- Materials, Components, & Auxiliaries

Citation Formats

Tekkanat, B., and Bolstad, J.J. Composite substrate for bipolar electrodes. United States: N. p., 1992. Web.
Tekkanat, B., & Bolstad, J.J. Composite substrate for bipolar electrodes. United States.
Tekkanat, B., and Bolstad, J.J. Tue . "Composite substrate for bipolar electrodes". United States.
@article{osti_7205862,
title = {Composite substrate for bipolar electrodes},
author = {Tekkanat, B. and Bolstad, J.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 present 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. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {12}
}