Cobalt Content of Lithium Cobalt Oxide based Cathode Material

The application gives a method to determine the cobalt content of lithium cobalt oxide based cathode material.

Background

The most common Lithium Ion battery type uses lithium cobalt oxide (LiCoO₂) as cathode.In order to form lithium cobalt oxide (LiCoO₂), lithium carbonate (Li₂CO₃) is mixed with cobalt oxide (Co₃O₄). The mixture is heated under an oxygen atmosphere to form the active electrode material. The cobalt content determination is a routine quality check and gives an indication on the purity of the cathode material.

 Photometric titration is used to determine the cobalt content using murexide as color indicator and the DP5 phototrode as sensor.

This application note includes:

• Introduction
• Sample Preparation and Procedures
• Solutions and Chemicals
• Chemistry
• Instruments and Accessories
• Method in Detail
• Results and Remarks

And method files (.lmt and .xml) for direct import and implementation on the instrument.