Interfacial Design for a 4.6 V High-Voltage Single-Crystalline LiCoO2 Cathode

Interfacial Design for a 4.6 V High-Voltage Single-Crystalline LiCoO2 Cathode

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 8 vom: 27. Feb., Seite e2108353
1. Verfasser: Zhang, Jiaxun (VerfasserIn)
Weitere Verfasser: Wang, Peng-Fei, Bai, Panxing, Wan, Hongli, Liu, Sufu, Hou, Singyuk, Pu, Xiangjun, Xia, Jiale, Zhang, Weiran, Wang, Zeyi, Nan, Bo, Zhang, Xiyue, Xu, Jijian, Wang, Chunsheng
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article high-voltage LiCoO2 cathodes inorganic-rich cathode electrolyte interphase nonflammable electrolytes single-crystalline cathodes
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520 |a Single-crystalline cathode materials have attracted intensive interest in offering greater capacity retention than their polycrystalline counterparts by reducing material surfaces and phase boundaries. However, the single-crystalline LiCoO2 suffers severe structural instability and capacity fading when charged to high voltages (4.6 V) due to Co element dissolution and O loss, crack formation, and subsequent electrolyte penetration. Herein, by forming a robust cathode electrolyte interphase (CEI) in an all-fluorinated electrolyte, reversible planar gliding along the (003) plane in a single-crystalline LiCoO2 cathode is protected due to the prevention of element dissolution and electrolyte penetration. The robust CEI effectively controls the performance fading issue of the single-crystalline cathode at a high operating voltage of 4.6 V, providing new insights for improved electrolyte design of high-energy-density battery cathode materials 
650 4 |a Journal Article 
650 4 |a high-voltage LiCoO2 cathodes 
650 4 |a inorganic-rich cathode electrolyte interphase 
650 4 |a nonflammable electrolytes 
650 4 |a single-crystalline cathodes 
700 1 |a Wang, Peng-Fei  |e verfasserin  |4 aut 
700 1 |a Bai, Panxing  |e verfasserin  |4 aut 
700 1 |a Wan, Hongli  |e verfasserin  |4 aut 
700 1 |a Liu, Sufu  |e verfasserin  |4 aut 
700 1 |a Hou, Singyuk  |e verfasserin  |4 aut 
700 1 |a Pu, Xiangjun  |e verfasserin  |4 aut 
700 1 |a Xia, Jiale  |e verfasserin  |4 aut 
700 1 |a Zhang, Weiran  |e verfasserin  |4 aut 
700 1 |a Wang, Zeyi  |e verfasserin  |4 aut 
700 1 |a Nan, Bo  |e verfasserin  |4 aut 
700 1 |a Zhang, Xiyue  |e verfasserin  |4 aut 
700 1 |a Xu, Jijian  |e verfasserin  |4 aut 
700 1 |a Wang, Chunsheng  |e verfasserin  |4 aut 
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