from chemistry to pack
The 12V system voltage limits used across the automotive industry come from LV124, the specification that defines the operating voltage range every 12V component must survive. It sets out Vmin and Vmax limits for different classes of function, covering everything from cranking dips during engine start to steady-state running voltage. Note: the 6V cold engine … Read more
Author: Sarah B. One of the most persistent misconceptions in the battery community is the belief that the HOMO–LUMO gap of a solvent defines the electrochemical stability window of an electrolyte. It doesn’t. And this misunderstanding is costing us — scientifically and financially. The energy diagram [1] illustrates the electrochemical stability window of an electrolyte … Read more
AION Engineering INC In lithium-ion battery technology, optimizing cell performance and safety requires careful consideration of multiple parameters. Among these, the cut-off voltage is critical for balancing energy density and ensuring cell longevity and stability. While cathode chemistry often guides cell classification, variations in anode materials significantly impact the appropriate cut-off voltage setting. Influence of … Read more
Constant Current – Constant Voltage Charging (CC-CV) is where a battery cell is charged at a constant current until it reaches the maximum charging voltage at which point the voltage is fixed and the current reduced. The following graph shows this relationship versus charge time. The constant current charging up to 4.2V is at 0.5C … Read more