Insulation development for high-temperature battery for electric vehicle application

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 140 KB
• Volume: 5
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(80)80054-1

✦ Synopsis

surface into the substrate. Such diffusional losses and coating defects can be compensated for by introducing iron borides ( FezB and FeB) into the positive active material where they will be available for diffusion to the initially boronized material.

The objective of this program was to give a preliminary demonstration of the basic concept. High corrosion stabilities were found for Ilow-carbon ferrous materials boronized by the IGT pack boronization technique. Boride migration from iron boridecontaining positive active material has been demonstrated, which, under long-term battery cycling, is expected to enhance the practical lifetime of the initial coating. Reproducible pack 'boronization techniques have been developed which allow for the rapid boronization of lithium-metal sulfide components and are readily amenable to commercial scale-up. No cell assembly difficulties were identified as a result of this technique.