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Title: Method of preparing an electrode material of lithium-aluminum alloy

Abstract

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.

Inventors:
 [1];  [2];  [3]
  1. Plainfield, IL
  2. Downers Grove, IL
  3. Oak Forest, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
862541
Patent Number(s):
3957532
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; particles; 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; /429/75/419/420/428/

Citation Formats

Settle, Jack L, Myles, Kevin M, and Battles, James E. Method of preparing an electrode material of lithium-aluminum alloy. United States: N. p., 1976. Web.
Settle, Jack L, Myles, Kevin M, & Battles, James E. Method of preparing an electrode material of lithium-aluminum alloy. United States.
Settle, Jack L, Myles, Kevin M, and Battles, James E. Thu . "Method of preparing an electrode material of lithium-aluminum alloy". United States. https://www.osti.gov/servlets/purl/862541.
@article{osti_862541,
title = {Method of preparing an electrode material of lithium-aluminum alloy},
author = {Settle, Jack L and Myles, Kevin M and Battles, James E},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

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