Presentation Profile
Determination of chloride and sulfate in saturated lithium carbonate and lithium hydroxide solutions
Currently Scheduled: 10/11/2023 - 8:00 AM - 8:20 AM
Room: Rose
Main Author
Kirk Chassaniol - ThermoFisher Scientific
- Jeffrey Rohrer - Thermon Fisher Scientific
Abstract:
Lithium carbonate and lithium hydroxide are important compounds for industry. They are used in many applications including rechargeable lithium-ion and lithium polymer batteries, which are an increasing part of our daily life as we use more portable electronic devices, including mobile phones. These batteries are also important for the electric car industry. Therefore, it is important that these compounds are low in corrosive strong acid anions that could impact product performance and longevity. This presentation describes the development and validation of two ion chromatography methods desired by both battery recyclers and chemical suppliers: one for the determination of chloride and sulfate in saturated lithium carbonate solution, and one for the determination of the same anions in lithium hydroxide solution. Both methods use an anion-exchange column for anion separation followed by suppressed conductivity detection. The two methods have different instrument configurations and sample preparation steps to address the issues unique to each sample. These methods have low µg/L sensitivities for chloride, sulfate, and other possible contaminating anions.
