Method of preparing an electrode material of lithium--aluminum alloy
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
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Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CHEMICAL PREPARATION
ELECTRIC-POWERED VEHICLES
LITHIUM-SULFUR BATTERIES
HYBRID ELECTRIC-POWERED VEHICLES
LITHIUM BASE ALLOYS
ANODES
OFF-PEAK ENERGY STORAGE
FABRICATION
HIGH TEMPERATURE
LITHIUM CHLORIDES
METAL-NONMETAL BATTERIES
POTASSIUM CHLORIDES
ALKALI METAL COMPOUNDS
ALLOYS
CHLORIDES
CHLORINE COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
HALIDES
HALOGEN COMPOUNDS
LITHIUM ALLOYS
LITHIUM COMPOUNDS
LITHIUM HALIDES
POTASSIUM COMPOUNDS
STORAGE
SYNTHESIS
VEHICLES
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
360101 - Metals & Alloys- Preparation & Fabrication