Wu Xian
Abstract
The components and structure of failed active material(AM) after cycling were investigated using porosity test,XRD and SEM.It showed that the failure mode of VRLA batteries was the positive active material softening and shedding under the cycling operation condition.
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The components and structure of failed active material(AM) after cycling were investigated using porosity test,XRD and SEM.It showed that the failure mode of VRLA batteries was the positive active material softening and shedding under the cycling operation condition.
Key concepts: Softening, Cycling, Porosity, Materials science, Failure mode and effects analysis, Forensic engineering, Composite material, Reliability engineering