Researchers Characterize How Passivation Layer Forms in Lithium-Ion Batteries

Researchers have been studying the passivation layer formation in lithium-ion batteries to understand the effects on the electrode performance.

When a lithium-ion battery is charged and discharged, lithium ions move between the cathode and anode. During repeated cycling, a passivation layer can form on the surface of the electrode. This layer can limit the transport of lithium ions and reduce the capacity of the battery.

Researchers at the University of California, San Diego, have been studying the formation of the passivation layer in lithium-ion batteries using advanced imaging techniques. They discovered that the layer forms due to the reaction between lithium ions and the electrolyte solution. The passivation layer consists of lithium carbonate and lithium fluoride.

The researchers suggest that controlling the formation of the passivation layer can improve the electrode performance and increase the cycle life of the battery. This can be achieved by optimizing the composition and concentration of the electrolyte solution.

The study provides new insights into the formation of passivation layers in lithium-ion batteries and their impact on the battery performance. Future research can use this information to develop advanced battery materials and electrolytes to improve the performance and longevity of lithium-ion batteries.

https://www.lifetechnology.com/blogs/life-technology-technology-news/researchers-characterize-how-passivation-layer-forms-in-lithium-ion-batteries

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