{"database":"biostudies-literature","file_versions":[],"scores":{"citationCount":0,"reanalysisCount":0,"viewCount":81,"searchCount":0},"additional":{"submitter":["Tang Z"],"funding":["National Key R&D Program of China","National Natural Science Foundation of China"],"pagination":["2198906"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC6946265"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["2019"],"pubmed_abstract":["Li+/Ni2+ antisite defects mainly resulting from their similar ionic radii in the layered nickel-rich cathode materials belong to one of cation disordering scenarios. They are commonly considered harmful to the electrochemical properties, so a minimum degree of cation disordering is usually desired. However, this study indicates that LiNi0.8Co0.15Al0.05O2 as the key material for Tesla batteries possesses the highest rate capability when there is a minor degree (2.3%) of Li+/Ni2+ antisite defects existing in its layered structure. By combining a theoretical calculation, the improvement mechanism is attributed to two effects to decrease the activation barrier for lithium migration: (1) the anchoring of a low fraction of high-valence Ni2+ ions in the Li slab pushes uphill the nearest Li+ ions and (2) the same fraction of low-valence Li+ ions in the Ni slab weakens the repulsive interaction to the Li+ ions at the saddle point."],"journal":["Research (Washington, D.C.)"],"pubmed_title":["Facilitating Lithium-Ion Diffusion in Layered Cathode Materials by Introducing Li+/Ni2+ Antisite Defects for High-Rate Li-Ion Batteries."],"pmcid":["PMC6946265"],"funding_grant_id":["2018YFB0905400","51577175"],"pubmed_authors":["Liao J","Tang Z","Wang S","He X","He H","Pan B","Chen C"],"view_count":["81"],"additional_accession":[]},"is_claimable":false,"name":"Facilitating Lithium-Ion Diffusion in Layered Cathode Materials by Introducing Li+/Ni2+ Antisite Defects for High-Rate Li-Ion Batteries.","description":"Li+/Ni2+ antisite defects mainly resulting from their similar ionic radii in the layered nickel-rich cathode materials belong to one of cation disordering scenarios. They are commonly considered harmful to the electrochemical properties, so a minimum degree of cation disordering is usually desired. However, this study indicates that LiNi0.8Co0.15Al0.05O2 as the key material for Tesla batteries possesses the highest rate capability when there is a minor degree (2.3%) of Li+/Ni2+ antisite defects existing in its layered structure. By combining a theoretical calculation, the improvement mechanism is attributed to two effects to decrease the activation barrier for lithium migration: (1) the anchoring of a low fraction of high-valence Ni2+ ions in the Li slab pushes uphill the nearest Li+ ions and (2) the same fraction of low-valence Li+ ions in the Ni slab weakens the repulsive interaction to the Li+ ions at the saddle point.","dates":{"release":"2019-01-01T00:00:00Z","publication":"2019","modification":"2024-11-12T03:44:26.868Z","creation":"2020-05-22T07:34:54Z"},"accession":"S-EPMC6946265","cross_references":{"pubmed":["31922130"],"doi":["10.34133/2019/2198906"]}}