Chroma ATE / September, 2021

High-Precision Analysis of EV Battery Aging Mechanism

The Customer

A well-known battery manufacturer that develops lithium batteries for international electric vehicle manufacturers.

The Challenge

When researchers use Differential Voltage Analysis (DVA) to identify the aging mechanisms of lithium-ion batteries, they face the following challenges in obtaining a clear DVA curve:

  • Present charging and discharging equipment lacks voltage and current precision and accuracy.
  • The DVA curve and its characteristic peaks must be clearly recognized through the smoothing algorithm.
  • Creating the smoothing algorithm is time-consuming and poses risks of over-modification and distortion of data.
The Solution

Chroma Battery Reliability Test System 17010
Model 17216M-6-12

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High Voltage Device Power Supply Chroma 33021

Chroma Battery Reliability Test System 17010 provided the customer with optimal quality at the best price:

  • Designed with high-resolution (18-bit) ADC and low-noise measurement circuit so users can accurately identify the curve peaks directly from the test data.
  • Systematic summary of the root causes and extent of battery decline reduces the resources needed for developing curve smoothing algorithms and the costs needed for test equipment.
See how it works

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