A Study on Improving Drying Performance of Spinel Type LiMn2O4 as a Cathode Material for Lithium Ion Battery

Abstract

Lithium ion battery is one of the popular power sources for electronic devices. Although various cathode materials have been studied for lithium ion battery, spinel type LiMn2O4 is more attractive than any other materials due to its low cost, low toxic and high rate. Recently, researches and developments on spinel type LiMn2O4 have been carried out to improve its electrochemical performance. In this work, especially drying process with respect to spinel type LiMn2O4 thin film electrode by using NIR drying process was investigated. NIR technology is expected to be used in roll-to-roll process for manufacturing lithium ion battery. NIR drying process, contrary to conventional drying process, furnace, was verified to be necessary less time and provide longer life cycle. It is estimated that the spinel type LiMn2O4 thin film electrode using NIR drying process can provide more path for lithium ions.