Electrochemical cell with high discharge/charge rate capability

Patent · Fri Jan 01 00:00:00 EST 1988

OSTI ID:866513

Redey, Laszlo ^[1]

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1. Downers Grove, IL

A fully charged positive electrode composition for an electrochemical cell includes FeS.sub.2 and NiS.sub.2 in about equal molar amounts along with about 2-20 mole percent of the reaction product Li.sub.2 S. Through selection of appropriate electrolyte compositions, high power output or low operating temperatures can be obtained. The cell includes a substantially constant electrode impedance through most of its charge and discharge range. Exceptionally high discharge rates and overcharge protection are obtainable through use of the inventive electrode composition.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4728590
• OSTI ID: 866513
• Country of Publication: United States
• Language: English

Related Subjects

electrochemical
cell
discharge
charge
rate
capability
charged
positive
electrode
composition
fes
nis
equal
molar
amounts
2-20
mole
percent
reaction
product
selection
appropriate
electrolyte
compositions
power
output
operating
temperatures
obtained
substantially
constant
impedance
range
exceptionally
rates
overcharge
protection
obtainable
inventive
electrolyte composition
substantially constant
power output
positive electrode
electrochemical cell
mole percent
reaction product
operating temperature
electrode composition
operating temperatures
overcharge protection
rate capability
discharge rate
charge rate
molar amount
electrolyte compositions
molar amounts
charged positive
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