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Study Shows Anode Degradation Caused by Evolution of Solid Electrolyte Interphase Shells
Written by AZoMApr 5 2021
The electrochemical performance of lithium (Li) batteries is mainly governed by the interfacial decomposition products that form what is called the solid-electrolyte interphase (SEI) at the time of the first charging or discharging.
The SEI shells evolution processes and degradation mechanism at the electrode/electrolyte interface. Image Credit: ©Science China Press.
Until now, chemical compositions, dynamic evolutions, stabilities, and the impacting factors of the SEI films have gained considerable attention.
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Contrary to the formation of SEI film at the surface of electrodes, it has been observed that a type of SEI shells generally develops conformally at the outmost layer of the on-site deposited Li as the newly deposited Li gets in touch with the electrolyte. This could have a direct impact on growth behaviors, Li nucleation ....

Rui Wen , Science China , Li Jun Wan , Professor Rui Wen , ரயீ வென் , அறிவியல் சீனா , லி ஜூன் வ்யாந் , ப்ரொஃபெஸர் ரயீ வென் ,