Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy
Abstract Nowadays, LiCoO2 has dominated the cathode technology of lithium‐ion batteries (LIBs) for 3C digital devices, but the sluggish electrochemical kinetics and severe structure destruction limit its further application under extreme temperatures. Herein, we design a synergetic strategy includin...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-06-01
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| Series: | EcoMat |
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| Online Access: | https://doi.org/10.1002/eom2.12344 |
| _version_ | 1797810630598590464 |
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| author | Jincan Ren Yu Tang Weibao Li Dong He He Zhu Xingyu Wang Si Lan Zijia Yin Tingting Yang Zhaowen Bai Yang Ren Xiangheng Xiao Qi Liu |
| author_facet | Jincan Ren Yu Tang Weibao Li Dong He He Zhu Xingyu Wang Si Lan Zijia Yin Tingting Yang Zhaowen Bai Yang Ren Xiangheng Xiao Qi Liu |
| author_sort | Jincan Ren |
| collection | DOAJ |
| description | Abstract Nowadays, LiCoO2 has dominated the cathode technology of lithium‐ion batteries (LIBs) for 3C digital devices, but the sluggish electrochemical kinetics and severe structure destruction limit its further application under extreme temperatures. Herein, we design a synergetic strategy including La, Mg co‐doping and LiAlO2@Al2O3 surface coating. Typically, the La3+ increases the interlayer distance and significantly enhances the ionic conductivity, the Mg2+ improves electronic conductivity, and the LiAlO2@Al2O3 coating layer improves the interfacial charge transfer and suppresses the polarization. The co‐modified LiCoO2 (CM‐LCO) shows excellent temperature adaptability with remarkable electrochemical performance in a wide temperature range (−40–70°C). Remarkably, the CM‐LCO also exhibits excellent cycle stability and high‐rate performance at extreme temperatures. The synergistic effects of this co‐modification strategy are demonstrated by investigating the electrochemical reaction kinetics and structure evolution of CM‐LCO. This work proposes a promising strategy for the application of the high‐voltage LCO in a wide temperature range. |
| first_indexed | 2024-03-13T07:11:43Z |
| format | Article |
| id | doaj.art-46c5068cb4d94da8bb0c85f32a4dc22f |
| institution | Directory Open Access Journal |
| issn | 2567-3173 |
| language | English |
| last_indexed | 2024-03-13T07:11:43Z |
| publishDate | 2023-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | EcoMat |
| spelling | doaj.art-46c5068cb4d94da8bb0c85f32a4dc22f2023-06-06T01:17:26ZengWileyEcoMat2567-31732023-06-0156n/an/a10.1002/eom2.12344Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategyJincan Ren0Yu Tang1Weibao Li2Dong He3He Zhu4Xingyu Wang5Si Lan6Zijia Yin7Tingting Yang8Zhaowen Bai9Yang Ren10Xiangheng Xiao11Qi Liu12Department of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaInstitute of Plasma Physics, HFIPS Chinese Academy of Sciences Hefei 230031 ChinaDepartment of Physics Wuhan University Wuhan 430072 ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaDepartment of Physics Wuhan University Wuhan 430072 ChinaDepartment of Physics City University of Hong Kong Hong Kong 999077 People's Republic of ChinaAbstract Nowadays, LiCoO2 has dominated the cathode technology of lithium‐ion batteries (LIBs) for 3C digital devices, but the sluggish electrochemical kinetics and severe structure destruction limit its further application under extreme temperatures. Herein, we design a synergetic strategy including La, Mg co‐doping and LiAlO2@Al2O3 surface coating. Typically, the La3+ increases the interlayer distance and significantly enhances the ionic conductivity, the Mg2+ improves electronic conductivity, and the LiAlO2@Al2O3 coating layer improves the interfacial charge transfer and suppresses the polarization. The co‐modified LiCoO2 (CM‐LCO) shows excellent temperature adaptability with remarkable electrochemical performance in a wide temperature range (−40–70°C). Remarkably, the CM‐LCO also exhibits excellent cycle stability and high‐rate performance at extreme temperatures. The synergistic effects of this co‐modification strategy are demonstrated by investigating the electrochemical reaction kinetics and structure evolution of CM‐LCO. This work proposes a promising strategy for the application of the high‐voltage LCO in a wide temperature range.https://doi.org/10.1002/eom2.123444.6 V LiCoO2electrochemical kineticsLi‐ion batteriesstructure stabilitywide temperature range |
| spellingShingle | Jincan Ren Yu Tang Weibao Li Dong He He Zhu Xingyu Wang Si Lan Zijia Yin Tingting Yang Zhaowen Bai Yang Ren Xiangheng Xiao Qi Liu Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy EcoMat 4.6 V LiCoO2 electrochemical kinetics Li‐ion batteries structure stability wide temperature range |
| title | Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy |
| title_full | Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy |
| title_fullStr | Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy |
| title_full_unstemmed | Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy |
| title_short | Enabling high‐performance 4.6 V LiCoO2 in a wide temperature range via a synergetic strategy |
| title_sort | enabling high performance 4 6 v licoo2 in a wide temperature range via a synergetic strategy |
| topic | 4.6 V LiCoO2 electrochemical kinetics Li‐ion batteries structure stability wide temperature range |
| url | https://doi.org/10.1002/eom2.12344 |
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