Novel battery cathode material based on intercalation chemistry: Redox reactions of the 2,5-dimercapto-1,3,4-thiadiazole/V{sub 2}O{sub 5} xerogel system. Technical report, October 1996--June 1998

Technical Report · Mon Jun 29 04:00:00 EDT 1998

OSTI ID:649559

Shouji, E; Buttry, D A

A novel redox active organic/inorganic hybrid composite material is prepared by oxidative intercalation of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) or its disulfide dimer into a V2O5 xerogel. X-ray diffraction shows a change in the layer spacing between that of the parent V2O5 material (11.55 A) and that of the new intercalation material (13.5 A). This change is consistent with loss of some interstitial water during intercalation of the disulfide polymer of DMcT. Elemental analysis gives a composition for the intercalation material of (POLYDMcT){sub 0.25}{center_dot}V{sub 2}O{sub 5}{center_dot}1.4H{sub 2}O. The cyclic voltammetry and galvanostatic discharge behavior of the parent V{sub 2}O{sub 5} xerogel and the new intercalation material are directly compared. The (POLYDMcT){sub 0.25}{center_dot}V{sub 2}O{sub 5}{center_dot}1.4H{sub 2}O hybrid composite material is shown to have superior discharge behavior, making it an attractive candidate material for use as a cathode in lithium secondary batteries.

• Research Organization: Wyoming Univ., Dept. of Chemistry, Laramie, WY (United States)
• OSTI ID: 649559
• Report Number(s): AD-A--348888/XAB; CNN: Contract N00014-96-1-0673
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
CATHODES
CLATHRATES
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
DISULFIDES
ELECTRICAL PROPERTIES
FABRICATION
METAL-NONMETAL BATTERIES
REDOX REACTIONS
THIAZOLES
VANADIUM OXIDES