Solid-State Reaction Heterogeneity During Calcination of Lithium-Ion Battery Cathode

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 10 vom: 01. März, Seite e2207076
1. Verfasser: Jo, Sugeun (VerfasserIn)
Weitere Verfasser: Han, Jeongwoo, Seo, Sungjae, Kwon, Oh-Sung, Choi, Subin, Zhang, Jin, Hyun, Hyejeong, Oh, Juhyun, Kim, Juwon, Chung, Jinkyu, Kim, Hwiho, Wang, Jian, Bae, Junho, Moon, Junyeob, Park, Yoon-Cheol, Hong, Moon-Hi, Kim, Miyoung, Liu, Yijin, Sohn, Il, Jung, Keeyoung, Lim, Jongwoo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Li-ion batteries nickel-rich cathodes phase transitions with solid-state reaction spatial distribution of local chemical compositions within the particles synthesis during calcination
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520 |a During solid-state calcination, with increasing temperature, materials undergo complex phase transitions with heterogeneous solid-state reactions and mass transport. Precise control of the calcination chemistry is therefore crucial for synthesizing state-of-the-art Ni-rich layered oxides (LiNi1-x-y Cox Mny O2 , NRNCM) as cathode materials for lithium-ion batteries. Although the battery performance depends on the chemical heterogeneity during NRNCM calcination, it has not yet been elucidated. Herein, through synchrotron-based X-ray, mass spectrometry microscopy, and structural analyses, it is revealed that the temperature-dependent reaction kinetics, the diffusivity of solid-state lithium sources, and the ambient oxygen control the local chemical compositions of the reaction intermediates within a calcined particle. Additionally, it is found that the variations in the reducing power of the transition metals (i.e., Ni, Co, and Mn) determine the local structures at the nanoscale. The investigation of the reaction mechanism via imaging analysis provides valuable information for tuning the calcination chemistry and developing high-energy/power density lithium-ion batteries 
650 4 |a Journal Article 
650 4 |a Li-ion batteries 
650 4 |a nickel-rich cathodes 
650 4 |a phase transitions with solid-state reaction 
650 4 |a spatial distribution of local chemical compositions within the particles 
650 4 |a synthesis during calcination 
700 1 |a Han, Jeongwoo  |e verfasserin  |4 aut 
700 1 |a Seo, Sungjae  |e verfasserin  |4 aut 
700 1 |a Kwon, Oh-Sung  |e verfasserin  |4 aut 
700 1 |a Choi, Subin  |e verfasserin  |4 aut 
700 1 |a Zhang, Jin  |e verfasserin  |4 aut 
700 1 |a Hyun, Hyejeong  |e verfasserin  |4 aut 
700 1 |a Oh, Juhyun  |e verfasserin  |4 aut 
700 1 |a Kim, Juwon  |e verfasserin  |4 aut 
700 1 |a Chung, Jinkyu  |e verfasserin  |4 aut 
700 1 |a Kim, Hwiho  |e verfasserin  |4 aut 
700 1 |a Wang, Jian  |e verfasserin  |4 aut 
700 1 |a Bae, Junho  |e verfasserin  |4 aut 
700 1 |a Moon, Junyeob  |e verfasserin  |4 aut 
700 1 |a Park, Yoon-Cheol  |e verfasserin  |4 aut 
700 1 |a Hong, Moon-Hi  |e verfasserin  |4 aut 
700 1 |a Kim, Miyoung  |e verfasserin  |4 aut 
700 1 |a Liu, Yijin  |e verfasserin  |4 aut 
700 1 |a Sohn, Il  |e verfasserin  |4 aut 
700 1 |a Jung, Keeyoung  |e verfasserin  |4 aut 
700 1 |a Lim, Jongwoo  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 35(2023), 10 vom: 01. März, Seite e2207076  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:35  |g year:2023  |g number:10  |g day:01  |g month:03  |g pages:e2207076 
856 4 0 |u http://dx.doi.org/10.1002/adma.202207076  |3 Volltext 
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