Persistent State-of-Charge Heterogeneity in Relaxed, Partially Charged Li1- x Ni1/3 Co1/3 Mn1/3 O2 Secondary Particles

Persistent State-of-Charge Heterogeneity in Relaxed, Partially Charged Li1- x Ni1/3 Co1/3 Mn1/3 O2 Secondary Particles

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 28(2016), 31 vom: 02. Aug., Seite 6631-8
1. Verfasser: Gent, William E (VerfasserIn)
Weitere Verfasser: Li, Yiyang, Ahn, Sungjin, Lim, Jongwoo, Liu, Yijin, Wise, Anna M, Gopal, Chirranjeevi Balaji, Mueller, David N, Davis, Ryan, Weker, Johanna Nelson, Park, Jin-Hwan, Doo, Seok-Kwang, Chueh, William C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article X-ray microscopy capacity fade lithium-ion batteries positive electrode stress
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520 |a Ex situ transmission X-ray microscopy reveals micrometer-scale state-of-charge heterogeneity in solid-solution Li1- x Ni1/3 Co1/3 Mn1/3 O2 secondary particles even after extensive relaxation. The heterogeneity generates overcharged domains at the cutoff voltage, which may accelerate capacity fading and increase impedance with extended cycling. It is proposed that optimized secondary structures can minimize the state-of-charge heterogeneity by mitigating the buildup of nonuniform internal stresses associated with volume changes during charge 
650 4 |a Journal Article 
650 4 |a X-ray microscopy 
650 4 |a capacity fade 
650 4 |a lithium-ion batteries 
650 4 |a positive electrode 
650 4 |a stress 
700 1 |a Li, Yiyang  |e verfasserin  |4 aut 
700 1 |a Ahn, Sungjin  |e verfasserin  |4 aut 
700 1 |a Lim, Jongwoo  |e verfasserin  |4 aut 
700 1 |a Liu, Yijin  |e verfasserin  |4 aut 
700 1 |a Wise, Anna M  |e verfasserin  |4 aut 
700 1 |a Gopal, Chirranjeevi Balaji  |e verfasserin  |4 aut 
700 1 |a Mueller, David N  |e verfasserin  |4 aut 
700 1 |a Davis, Ryan  |e verfasserin  |4 aut 
700 1 |a Weker, Johanna Nelson  |e verfasserin  |4 aut 
700 1 |a Park, Jin-Hwan  |e verfasserin  |4 aut 
700 1 |a Doo, Seok-Kwang  |e verfasserin  |4 aut 
700 1 |a Chueh, William C  |e verfasserin  |4 aut 
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