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Concentration Gradient Cathodes: Microstructure‐Controlled Ni‐Rich Cathode Material by Microscale Compositional Partition for Next‐Generation Electric Vehicles (Adv. Energy Mater. 15/2019)
Author(s) -
Kim UnHyuck,
Ryu HoonHee,
Kim JaeHyung,
Mücke Robert,
Kaghazchi Payam,
Yoon Chong S.,
Sun YangKook
Publication year - 2019
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201970046
Subject(s) - cathode , materials science , microscale chemistry , microstructure , partition (number theory) , battery (electricity) , anode , ion , lithium ion battery , chemical engineering , composite material , thermodynamics , electrical engineering , chemistry , electrode , organic chemistry , mathematics education , mathematics , combinatorics , engineering , power (physics) , physics
In article number 1803902 , Chong S. Yoon, Yang‐Kook Sun and co‐workers demonstrate that the CSG90 cathode for the high‐energy lithium‐ion battery can dissipate the internal strains generated by the detrimental H2 ↔ H3 phase transition that occurs in Ni‐enriched NCM cathodes in the deeply charged state. This markedly improves cycle performance as well as thermochemical stability. The partitioning of cathode particles and subsequent optimization of their microstructural response to internal strain may lead to the rational design and development of a wide range of multi‐functional cathodes, especially Ni‐rich NCM cathodes.