Method of preparing an electrode material of lithium-aluminum alloy

Patent · Thu Jan 01 00:00:00 EST 1976

OSTI ID:862541

Settle, Jack L ^[1]; Myles, Kevin M ^[2]; Battles, James E ^[3]

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1. Plainfield, IL
2. Downers Grove, IL
3. Oak Forest, IL

A solid compact having a uniform alloy composition of lithium and aluminum is prepared as a negative electrode for an electrochemical cell. Lithium losses during preparation are minimized by dissolving aluminum within a lithium-rich melt at temperatures near the liquidus temperatures. The desired alloy composition is then solidified and fragmented. The fragments are homogenized to a uniform composition by annealing at a temperature near the solidus temperature. After comminuting to fine particles, the alloy material can be blended with powdered electrolyte and pressed into a solid compact having the desired electrode shape. In the preparation of some electrodes, an electrically conductive metal mesh is embedded into the compact as a current collector.

• 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 Energy (Washington, DC)
• Patent Number(s): US 3957532
• OSTI ID: 862541
• Country of Publication: United States
• Language: English

Related Subjects

method
preparing
electrode
material
lithium-aluminum
alloy
solid
compact
uniform
composition
lithium
aluminum
prepared
negative
electrochemical
cell
losses
preparation
minimized
dissolving
lithium-rich
melt
temperatures
near
liquidus
desired
solidified
fragmented
fragments
homogenized
annealing
temperature
solidus
comminuting
fine
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blended
powdered
electrolyte
pressed
shape
electrodes
electrically
conductive
metal
mesh
embedded
current
collector
lithium-aluminum alloy
alloy composition
fine particles
metal mesh
current collector
negative electrode
electrochemical cell
electrically conductive
electrode material
aluminum alloy
conductive metal
alloy material
fine particle
temperature near
desired electrode
solid compact
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