| Autor: |
Li, Shuo, Wang, Shan, Chen, Yanxuan, Meng, Xianliang, Wang, Lin, Zhu, Junsheng |
| Zdroj: |
Next Energy; January 2025, Vol. 6 Issue: 1 |
| Abstrakt: |
Zinc-ion batteries have drawn much attention due to their good safety and low cost. In this work, a straightforward 1-pot pyrolysis process has been utilized to prepare novel K0.5Mn2O4·1.5H2O/rGO (KMrGO) composites. In KMrGO, the layered structure of reduced graphene oxide (rGO) can efficiently improve the electrical conductivity of K0.5Mn2O4·1.5H2O, enabling KMrGO to demonstrate high zinc storage performance. Although a very small amount of rGO (∼1.8%) has been introduced, the reversible capacity of KMrGO reaches 230.1 mAh g−1after 250 cycles at 0.2 A g−1. Even after 1200 cycles at a high current density of 1 A g−1, KMrGO remains a good capacity retention of 70.2%. Considering the simple preparation of KMrGO, this method can provide a new route for synthesizing other metal dioxide/rGO composites. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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