All-solid electrodes with mixed conductor matrix

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:864915

Huggins, Robert A ^[1]; Boukamp, Bernard A ^[2]

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1. Stanford, CA
2. Achterste Kamp, NL

Alkali metal based electrochemical cells offer a great deal of promise for applications in many areas such as electric vehicles and load leveling purposes in stationary power plants. Lithium is an attractive candidate as the electroactive species in such cells since lithium is very electropositive, abundant and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated at elevated temperatures. The subject invention provides an electrochemical cell in one embodiment of which lithium is the electroactive species. The cell comprises an electrolyte, a positive electrode, and a negative electrode, either or both of which is an all-solid, composite microstructural electrode containing both a reactant phase and a mixed ionic-electronic conducting phase. The cells of the subject invention exhibit improved kinetic features, current and power densities. Repeated charging and discharging of these cells can be accomplished without appreciable loss of capacity.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4436796
• OSTI ID: 864915
• Country of Publication: United States
• Language: English

Related Subjects

all-solid
electrodes
mixed
conductor
matrix
alkali
metal
based
electrochemical
cells
offer
deal
promise
applications
electric
vehicles
load
leveling
purposes
stationary
power
plants
lithium
attractive
candidate
electroactive
species
electropositive
abundant
light
weight
type
lithium-based
cell
utilizes
molten
salt
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normally
operated
elevated
temperatures
subject
provides
embodiment
comprises
positive
electrode
negative
composite
microstructural
containing
reactant
phase
ionic-electronic
conducting
exhibit
improved
kinetic
features
current
densities
repeated
charging
discharging
accomplished
appreciable
loss
capacity
cell utilizes
load leveling
power densities
exhibit improved
solid electrode
power plants
light weight
cell comprises
electric vehicle
elevated temperatures
positive electrode
electrochemical cells
negative electrode
alkali metal
electrochemical cell
elevated temperature
molten salt
power plant
salt electrolyte
electric vehicles
electrode containing
metal base
active species
lithium-based cell
metal based
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