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Li‐Ion Battery Cathodes: Enhancing Interfacial Bonding between Anisotropically Oriented Grains Using a Glue‐Nanofiller for Advanced Li‐Ion Battery Cathode (Adv. Mater. 23/2016)
Author(s) -
Kim Hyejung,
Lee Sanghan,
Cho Hyeon,
Kim Junhyeok,
Lee Jieun,
Park Suhyeon,
Joo Se Hun,
Kim Su Hwan,
Cho YoonGyo,
Song HyunKon,
Kwak Sang Kyu,
Cho Jaephil
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201670161
Subject(s) - materials science , spinel , cathode , ion , battery (electricity) , layer (electronics) , lithium (medication) , particle (ecology) , lithium ion battery , chemical engineering , composite material , nanotechnology , metallurgy , chemistry , organic chemistry , medicine , power (physics) , physics , oceanography , quantum mechanics , geology , engineering , endocrinology
The formation of a spinel Li x CoO 2 layer in a Ni‐rich secondary particle for lithium‐ion batteries is reported by S. K. Kwak, J. Cho, and co‐workers on page 4705, who find that the spinel‐like Li x CoO 2 layer, between layered primary particles, can enhance the mechanical strength of secondary particles by enhancing the interfacial binding energy among the grains. Moreover, the layer can effectively protect the unstable surface of the primary particles and offers a fast electron–ion pathway, resulting in overall enhancements of stability and kinetics in battery performance.