Lithium Ion cell Testing

The Battery Testing Laboratory has recently added a 24 x 50 Amp channel tester which operates in the 0-6V range, with in-situ impedance analysis for lithium-ion and other types of cells within the same voltage range.  The cell tester interfaced with a Weiss explosion proof temperature chamber especially designed for lithium-ion testing and can perform testing at temperatures ranging from -40°C to +90°C. 
The laboratory also has a cell tester with 8 x 500 milliamp channels which allows for the testing of button or cylindrical cells ranging from 0-10V.  Each of the eight channels can operate independently, enabling multiple cells or batteries to be tested at the same time. 
With the laboratory’s fleet of testers, it can test a variety of commercially available cells, such as pouch, prismatic, cylindrical and button type cells or assist with the development of cell technologies.  
Due to the safety concerns increasing, when moving from the low voltage (0-6V) to high voltage (400-600V) the Battery Testing Laboratory’s philosophy is to develop the necessary skills to perform testing on cells (0-6V), then modules (60-100V) and lastly battery packs (400-600V).  
It is planned to expand the laboratory’s scope of accreditation to include IEC 62620 (Secondary lithium cells and batteries for industrial applications) and IEC 62660 (Secondary lithium ion cells for the propulsion of electric road vehicles).  The uYilo Battery testing laboratory aims to be the first accredited lithium-ion cell testing laboratory in South Africa.