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240315s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c03794
|2 doi
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|a eng
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|a Leng, Yue
|e verfasserin
|4 aut
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|a Enhanced Cathode Performance
|b The Heterostructure Construction of LiCoO2@Co3O4@Li6.4La3Zr1.4Ta0.6O12
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 26.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this study, the heterostructure cathode material LiCoO2Co3O4@Li6.4La3Zr1.4Ta0.6O12 was prepared by coating Li6.4La3Zr1.4Ta0.6O12 on the surface of LiCoO2 through a one-step solid-phase synthesis. The morphology, structure, electrical state, and elemental contents of both pristine and modified materials were assessed through a range of characterization techniques. Theoretical calculations revealed that the LCO@LLZTO material possessed a reduced diffusion barrier compared to LiCoO2, thereby facilitating the movement of Li ions. Electrochemical tests indicated that the capacity retention rate of the modified cathode composites stood at 70.43% following 300 cycles at a 2C rate. This high rate occurred because the Li6.4La3Zr1.4Ta0.6O12 film on the surface enhanced the migration of Li+, and the spinel phase of Co3O4 had better interfacial stability to alleviate the generation of microcracks by inhibiting the phase change from the layered phase to the rock-salt phase, which considerably improved the electrochemical properties
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|a Journal Article
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|a Dong, Shengde
|e verfasserin
|4 aut
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|a Sun, Yanxia
|e verfasserin
|4 aut
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|a Ma, Luxiang
|e verfasserin
|4 aut
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|a Li, Jinyao
|e verfasserin
|4 aut
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|a Feng, Hang
|e verfasserin
|4 aut
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|a Hai, Chunxi
|e verfasserin
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|a Zhou, Yuan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 12 vom: 26. März, Seite 6295-6303
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:40
|g year:2024
|g number:12
|g day:26
|g month:03
|g pages:6295-6303
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|u http://dx.doi.org/10.1021/acs.langmuir.3c03794
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