Performance of polyacrylonitrile-based cathodes in lithium-iodine solid state batteries

✍ Scribed by J.P. Wiaux; R. Bannehr

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 383 KB
• Volume: 19
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(87)80005-8

✦ Synopsis

Vacuum-cyclised polyacrylonitnle (VC-PAN) has been prepared in the form of films and powders. The reactivity of these materials compared with halogens is high and when loaded with iodme, their electrical conductivity may reach a value of lOA ohm-' cm-'.

Expernnental hthmm sohd state cells with cathodes based on VC-PAN/I2 material have been assembled m the laboratory and standard CR 2016 button cells have also been manufactured. the cells have been discharged at various loads. At equivalent iodine loadmgs the film-based cathodes are characterized by better discharge properties (achieved capacities at higher current dram) than batteries using powder-based cathodes. The powder-type of cathodes, however, offer the advantage of superior nominal capacity due to their higher iodme loadmg A strong dependence of the discharge properties with temperature was also observed and is reported.