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

Patent ·
OSTI ID:7252025

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. 1 figure.

Assignee:
Energy Research and Development Administration
Patent Number(s):
US 3957532
OSTI ID:
7252025
Resource Relation:
Patent File Date: Filed date 20 Jun 1974; Other Information: PAT-APPL-481,285
Country of Publication:
United States
Language:
English