How to Reduce Battery Aging Time

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Modular Battery Test Solution
+ Modular Battery Test Solution
Modular Battery Test Solution
+ Modular Battery Test Solution

Shorten Cell Aging Time

Traditional battery aging workflows commonly rely on ΔOCV (open-circuit voltage change) measurements to assess whether newly formed lithium-ion cells meet self-discharge requirements. While this method is simple and widely adopted, it requires extended rest periods—often spanning several days—to observe meaningful voltage drift. This prolonged duration increases work-in-process inventory, occupies valuable temperature-controlled floor space, and creates a significant bottleneck in high-volume manufacturing environments.

An alternative potentiostatic approach addresses these limitations by directly measuring the internal self-discharge current rather than waiting for voltage decay over time. By forcing and monitoring a controlled voltage condition, this method enables much faster stabilization—typically within hours—allowing earlier detection of abnormal cells. As a result, manufacturers can reduce aging time, improve throughput, and lower operational costs while maintaining accurate assessment of cell quality and long-term performance.

Self-Discharge Aging Reduction Solution

Reducing battery aging time requires measurement systems capable of accurately detecting low-level self-discharge currents while maintaining precise voltage control at the cell’s open-circuit condition. Keysight’s modular battery testing solution replaces traditional ΔOCV-based methods with a potentiostatic approach that directly measures internal leakage current using high-precision DC sourcing and sensitive current measurement. By holding the cell at its open-circuit voltage and monitoring microamp-level current, this integrated solution enables rapid identification of abnormal self-discharge behavior within hours instead of days. Together, these capabilities allow manufacturers to minimize aging delays, reduce work-in-process inventory, and improve throughput while maintaining reliable screening of cell quality in high-volume production environments.
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See Block Diagram of Self-Discharge Aging Reduction Solution

How to Reduce Battery Aging Time - Block Diagram

How to Reduce Battery Aging Time - Block Diagram

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