Park, Kang-Joon Jung, Hun-Gi Kuo, Liang-Yin Kaghazchi, Payam Yoon, Chong S. Sun, Yang-Kook 2024-01-19T22:00:44Z 2024-01-19T22:00:44Z 2021-09-03 2018-09-05 1614-6832 https://pubs.kist.re.kr/handle/201004/120927 Boron-doped Li[Ni0.90Co0.05Mn0.05]O-2 cathodes are synthesized by adding B2O3 during the lithiation of the hydroxide precursor. Density functional theory confirms that boron doping at a level as low as 1 mol% alters the surface energies to produce a highly textured microstructure that can partially relieve the intrinsic internal strain generated during the deep charging of Li[Ni0.90Co0.05Mn0.05]O-2. The 1 mol% B-Li[Ni0.90Co0.05Mn0.05]O-2 cathode thus delivers a discharge capacity of 237 mAh g(-1) at 4.3 V, with an outstanding capacity retention of 91% after 100 cycles at 55 degrees C, which is 15% higher than that of the undoped Li[Ni0.90Co0.05Mn0.05]O-2 cathode. This proposed synthesis strategy demonstrates that an optimal microstructure exists for extending the cycle life of Ni-rich Li[Ni1-x-yCoxMny]O-2 cathodes that have an inadequate cycling stability in electric vehicle applications and indicates that an optimal microstructure can be achieved through surface energy modification. English WILEY-V C H VERLAG GMBH SAFE LITHIUM BATTERIES HIGH-ENERGY CATHODE MATERIALS STRUCTURAL STABILITY ELECTROCHEMICAL PROPERTIES SURFACE DEGRADATION NI-RICH CAPACITY GENERATION SPECTROSCOPY Improved Cycling Stability of Li[Ni0.90Co0.05Mn0.05]O-2 Through Microstructure Modification by Boron Doping for Li-Ion Batteries Article 10.1002/aenm.201801202 1 ADVANCED ENERGY MATERIALS, v.8, no.25 ADVANCED ENERGY MATERIALS 8 25 scie scopus 000443674100016 2-s2.0-85050870896 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Energy & Fuels Materials Science Physics Article SAFE LITHIUM BATTERIES HIGH-ENERGY CATHODE MATERIALS STRUCTURAL STABILITY ELECTROCHEMICAL PROPERTIES SURFACE DEGRADATION NI-RICH CAPACITY GENERATION SPECTROSCOPY boron Li-ion batteries Ni-rich NCM cathodes surface energy