Dynamic Evolution of a Cathode Interphase Layer at the Surface of LiNi<sub>0.5</sub>Co<sub>0.2</sub>Mn<sub>0.3</sub>O<sub>2</sub> in Quasi-Solid-State Lithium Batteries
Huijuan Guo, Huaixiang Wang, Yu-Jie Guo, Guixian Liu, Jing Wan, Yuexian Song, Xinan Yang, Feifei Jia, Fuyi Wang, Yu‐Guo Guo, Rui Wen, Li‐Jun Wan
Abstract
, and specific organic species, were identified in detailat different stages of cycling, which can be directly correlated with the impedance buildup of the battery. In addition, the transition metal migration and the formation of new phases can further exacerbate the degradation of the SSLB. A relatively stable cathode interphase is key to improving the performance of SSLBs. Our findings provide deep insights into the dynamic evolution of surface morphology, chemical components and mechanical properties of the cathode interphase layer, which are pivotal for the performance optimization of SSLBs.
Topics & Concepts
CathodeInterphaseChemistryLayer (electronics)NanotechnologyBattery (electricity)Surface layerChemical engineeringMaterials sciencePhysical chemistryEngineeringGeneticsPhysicsBiologyPower (physics)Quantum mechanicsAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced Battery Technologies Research