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Title: Cell separator for use in bipolar-stack energy storage devices

An improved multi-cell electrochemical energy storage device is described, such as a battery, fuel cell, or double layer capacitor using a cell separator which allows cells to be stacked and interconnected with low electrical resistance and high reliability while maximizing packaging efficiency. By adding repeating cells, higher voltages can be obtained. The cell separator is formed by applying an organic adhesive on opposing surfaces of adjacent carbon electrodes or surfaces of aerogel electrodes of a pair of adjacent cells prior to or after pyrolysis thereof to form carbon aerogel electrodes. The cell separator is electronically conductive, but ionically isolating, preventing an electrolytic conduction path between adjacent cells in the stack. 2 figs.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
27703
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 250903; 250400; 300503; PA: EDB-95:056596; SN: 95001354452
Patent Number(s):
US 5,393,619/A/
Application Number:
PAN: 8-229,239
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 28 Feb 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 30 DIRECT ENERGY CONVERSION; ELECTRIC BATTERIES; BATTERY SEPARATORS; FUEL CELLS; CAPACITIVE ENERGY STORAGE EQUIPMENT; DESIGN; FABRICATION; ELECTRIC CONDUCTIVITY; ELECTRIC POTENTIAL; CARBONACEOUS MATERIALS; SURFACE COATING