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Panasonic Develops Battery Management Technology

Auto News - Published on Mon, 18 Nov 2019

Image Source: .panasonic.
Panasonic Corporation announced that it has developed a new battery management technology that measures a battery’s electrochemical impedance, which is an effective method of evaluating the residual value of lithium-ion batteries in devices. This technology is expected to be applied to various devices that use lithium-ion battery modules with many battery cells stacked in series and to future vehicles. Panasonic has developed this technology in collaboration with Professor Masahiro Fukui of Ritsumeikan University. Panasonic developed a new battery monitoring IC test chip, measurement algorithm, and software, while Ritsumeikan University evaluated the performance using actual batteries.

This new technology has the following features
BMIC technology for performing electrochemical impedance measurements on multi-cell stacked batteries
Achieves electrochemical impedance measurement with the same accuracy as a standard measuring instrument
Temperature calibration technology that responds to changes in the temperature of operating devices

Conventional electrochemical impedance spectroscopy is widely used as a non-destructive method for evaluating lithium-ion batteries. This measurement method requires an application specific measuring instrument and a large thermostatic chamber that keeps the temperature of the battery constant, and it was necessary to measure each cell in the laboratory.

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Posted By : Yogender Pancholi on Mon, 18 Nov 2019
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