A study on the construction of spherical MnCO<sub>3</sub>–Cu<sub>2</sub>O composites with enhanced electrochemical lithium storage performance
In this work, thermodynamic multifunctional MnCO<sub>3</sub>-Cu<sub>2</sub>O composites with coral sphere shaped and pompon-like microstructures were constructed using a one chemical co-precipitation solvothermal process. The synergistic effect, the pseudocapacitive contribution and the p-n heterojunction enhance the electrochemical lithium storage performance and cycling stability of the formed MnCO<sub>3</sub>-Cu<sub>2</sub>O composites. At a current density of 2.0 A g<sup>-1</sup>, the coral sphere shaped MnCO<sub>3</sub>-Cu<sub>2</sub>O and pompon-like MnCO<sub>3</sub>-Cu<sub>2</sub>O electrodes exhibit discharge capacities of 804.6 mA h g<sup>-1</sup> and 650.2 mA h g<sup>-1</sup> after 400 cycles. The coral sphere shaped MnCO<sub>3</sub>-Cu<sub>2</sub>O microstructure exhibits excellent electrochemical performance. This study presents a design strategy for the construction of MnCO<sub>3</sub>-based composites that can be used in novel lithium-ion batteries.
Authors
- Chuansheng Cui (ORCID: https://orcid.org/0000-0002-2136-8643)
- Guifen Du
- Shuo Tao (ORCID: https://orcid.org/0000-0003-2501-2094)
- Suyuan Zeng (ORCID: https://orcid.org/0000-0002-6421-8565)
- Piyu Gong
- Haibo Li (ORCID: https://orcid.org/0000-0002-1568-9002)
- Lei Wang (ORCID: https://orcid.org/0000-0002-0925-183X)
Institutions
- Liaocheng University (CN)
Publication Details
- Journal
- Physical Chemistry Chemical Physics
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d4cp04509b
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Liaocheng University
- Natural Science Foundation of Shandong Province