Cell separator for use in bipolar-stack energy storage devices

Patent · Sat Dec 31 23:00:00 EST 1994

OSTI ID:869763

Mayer, Steven T ^[1]; Feikert, John H ^[2]; Kachmitter, James L ^[3]; Pekala, Richard W ^[4]

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1. San Leandro, CA
2. Livermore, CA
3. Pleasanton, CA
4. Pleasant Hill, CA

An improved multi-cell electrochemical energy storage device, 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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5393619
• OSTI ID: 869763
• Country of Publication: United States
• Language: English

Related Subjects

/429/361/
adding
adhesive
adjacent
adjacent carbon
adjacent cell
adjacent cells
aerogel
aerogel electrodes
allows
allows cells
applying
battery
bipolar-stack
bipolar-stack energy
capacitor
carbon
carbon aerogel
carbon electrode
carbon electrodes
cell
cell separator
cells
chemical energy
conduction
conduction path
conductive
device
devices
double
double layer
efficiency
electrical
electrical resistance
electrochemical
electrochemical energy
electrodes
electrolytic
electronically
electronically conductive
energy
energy storage
form
form carbon
formed
fuel
fuel cell
improved
improved multi-cell
interconnected
ionically
isolating
layer
layer capacitor
maximizing
multi-cell
multi-cell electrochemical
obtained
opposing
opposing surface
opposing surfaces
organic
packaging
packaging efficiency
pair
path
preventing
prior
pyrolysis
reliability
repeating
resistance
separator
stack
stacked
storage
storage device
storage devices
surfaces
voltages