In:
Advanced Functional Materials, Wiley, Vol. 30, No. 42 ( 2020-10)
Abstract:
Designing materials and architectures for improving the performance of rechargeable aqueous Zn–MnO 2 battery has gained extensive interest. The main challenge is to retain high capacity, superior rate performance capability, and long‐term stability capacity. This paper describes how a graphdiyne oxide (GDYO) membrane can endow Zn–MnO 2 batteries with high capacity, high rate capability, and long‐term stability. The specific capacity of the modified battery reaches as high as 300 mA h g −1 at a current density of 308 mA g −1 over 50 cycles. Even at a high current density of 3080 mA g −1 , this Zn–MnO 2 battery exhibits a capacity of 100 mA h g −1 over 2000 cycles. Moreover, the effect of the GDYO membrane and the reaction mechanism is elucidated. The GDYO membrane allows the reversible stripping/plating of zinc ions to maintain a Coulombic efficiency of ≈100% for 800 h. Therefore, it is believed that the GDYO membrane ensures well‐aligned ion transport and, thus, stabilizes the electrodes. This feasible approach toward Zn–MnO 2 batteries will open up alternative pathways for fabricating other high‐performance Zn‐ion batteries.
Type of Medium:
Online Resource
ISSN:
1616-301X
,
1616-3028
DOI:
10.1002/adfm.202004115
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2029061-5
detail.hit.zdb_id:
2039420-2
SSG:
11
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