Direct observation of the in-plane crack formation of O3-Na0.8Mg0.2Fe0.4Mn0.4O2 due to oxygen gas evolution for Na-ion batteries

Crack formation is considered one of the significant failure modes of layered oxide cathode materials for Na-ion batteries because particle cracks accelerate electrolyte decomposition, transition metal dissolution, and electrical contact loss. However, the crack formation mechanism of layered sodium...

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Veröffentlicht in:	Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2021-06, Vol.9 (24), p.14074-14084
Hauptverfasser:	Lee, Suyeon, Doo, Sung Wook, Jung, Min Soo, Shin Gwon Lim, Kim, Kanghyeon, Lee, Kyu Tae
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic properties Batteries Contact loss Cracks Electric contacts Electrochemical analysis Electrochemistry Electrode materials Evolution Failure modes Gas evolution Gas pressure Heterostructures Ions Mass spectrometry Mass spectroscopy Oxygen Phase transitions Rechargeable batteries Sodium Sodium-ion batteries Transition metal oxides
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