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Li-Ion cell formation is a critical step in the manufacturing process that turns a freshly assembled cell into something capable of storing an electrical charge. Before the forming process the Li-ion cell is merely an assembly of its components; mainly an anode, a cathode, a separator, terminals, electrolyte, and packaging that holds it all… (Show more)
In an earlier posting “The Value of Measuring Self-Discharge on Lithium Ion Cells” (click here to review) I explained what measuring self-discharge on LiIon cells is all about. I also introduced two new solutions for measuring self-discharge, from Keysight. These solutions use a proprietary approach that directly measures the self-discharge… (Show more)
Hybrid electric vehicles (HEV) and  electric vehicles (EV) have multiple architectural variations.  Figure 1 shows a simplified block diagram of a couple of these architectures.  For the strong (or parallel) hybrid and the pure EV (no engine), a high voltage (HV) bus supplied by a large battery, drives the electric powertrain.  Power levels of the… (Show more)
In my previous post, I explained why measuring the self-discharge on Li-Ion cells is vitally important to both R&D and manufacturing. The downside of measuring self-discharge however, when using the traditional method of measuring the cell’s open circuit voltage (OCV) loss is the amount of time required, typically weeks.   I also shared that… (Show more)
Have you ever wanted to be more efficient? Not just turning the lights off when you leave a room to conserve electricity or xeriscaping your yard to save on water, but have you ever wanted to optimize everything around you in order to increase the effectiveness of tasks in everyday life?   I think about this all the time… in fact, it’s been… (Show more)
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