Chloride Content of Lithium Cobalt Oxide based Cathode Material

The application describes a method to determine the chloride content of lithium cobalt oxide based cathode material of Lithium ion batteries.

Background

The production of cathode materials used in Li ion battery usually involves a calcination step. The solid precursor salts are mixed and heated. 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 LiCoO₂ electrode.

However, the end product is usually not pure and can contain chloride salts like lithium chloride (LiCl). These impurities are considered not to be active in the electrochemical reaction of the lithium ion battery. Therefore, the chloride content of the cathode material is checked after its production.

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.