Sulfur-Based Lithium-Organic Electrolyte Secondary Batteries.

Abstract

This program is aimed at developing a rechargeable organic-electrolyte lithium battery to operate over the range -40 to +160F, have an energy density approaching 100 Whr/lb, a cycle life in excess of 500, and high charge retention. The approach is to use positive electrodes based on higher sulfides of Nb, Ti and V. Nb and Ti disulfides and trisulfides were prepared thermally. They were characterized by scanning electron microscopy and by X-ray diffraction. Charge-discharge cycles in PC/LiAlCl4 electrolytes are characterized by good reversibility and relatively flat voltage plateaus with mid-discharge potentials of 2.0 V. The discharge mechanism involves a change in the valence of the transition metal. The overall structure of the sulfides influences reversibility strongly during continued cycling. Structure depends on preparation procedures. Molybdenum disulfide is also electrochemically active.

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1975
Accession Number
ADA008044

Entities

People

  • Fred S. Shuker
  • Gerhard L. Holleck

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • Diffraction
  • Electrolytes
  • Electron Microscopy
  • Energy
  • Lithium Batteries
  • Metals
  • Microscopy
  • Molybdenum
  • Scanning Electron Microscopy
  • Storage Batteries
  • Transition Metals
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene