Patent · US Expired

Iron-lithium anode for thermal batteries and thermal batteries made therefrom

US4221849A · kind A · utility

8Cited by
3References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 27, 1979
Grant dateSep 9, 1980
Priority date
Expiry dateApr 27, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12097
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The invention relates to an iron/lithium anode material for use in thermal batteries which comprises about 15% to 30% by weight lithium. Thermal batteries made from such anodes are also disclosed. The anode comprises particulate iron bound together by the surface tension of the lithium which wets the iron particles. A method is disclosed for the manufacture of the anode material which includes adding iron powder to a molten lithium and mixing to form a homogeneous mixture. The mixture is cooled to form an ingot and rolled into strips for fabrication into anode configurations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.