Unveiling the passivation and corrosion process of cathode aluminum current collector in lithium-ion battery
Source abstract
Abstract
To ensure reliable deployment of stable high-voltage LIBs, investigating the corrosion behavior and underlying mechanism of the Al current collector is imperative. This research on Al corrosion in LiPF 6 electrolyte indicates that the stability of the passivation layer (AlF 3/Al 2O 3) is significantly affected by the operating voltage. The corrosion resistance, R pit, displays a nonlinear distribution with a peak at 4 V, and pitting occurs beyond 4 V. The heterogeneous and wrinkled AlF 3 layer triggers localized breakdown. The established model of pitting initiation and expansion is supported by morphological evolution, quantitative component analysis, and electrochemical test results.
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Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Technologies Research · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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