Abstract
In recent years, aqueous rechargeable zinc-ion batteries (AZIBs) have attracted more and more attention, not only because they use earth-abundant metals, but also due to their improved safety and high volumetric energy density. As one type of promising electrode materials for AZIBs, manganese-based materials are receiving considerable attention owing to their high theoretical specific capacity, nontoxic and low cost. This minireview summarizes the recent advances on the application of manganese-based materials (manganese oxide, manganate, and their composites) in aqueous rechargeable zinc-ion batteries. In addition, the methods to enhance their zinc-ion storage properties are summarized and discussed, such as morphology engineering, doping, as well as compositing with other materials. Ultimately, some personal prospects for future research of the manganese-based materials for AZIBs are also proposed.
Highlights
In recent years, overconsumption of fossil fuels has caused many problems, such as global warming and environmental deterioration, which have been paid more and more attention by people all over the world (Liu et al, 2016, 2019c,d; He et al, 2017; Ma et al, 2017; Chen et al, 2019a; Guo et al, 2019c; Pan et al, 2020)
aqueous rechargeable zinc-ion batteries (AZIBs) have attracted considerable attention in recent years mainly due to their high safety, low cost, and high volumetric energy density. This mini review basically summarized the application of manganese-based materials, including manganese oxide, manganate, and their composite materials in AZIBs
Some problems still exist and need to be resolved for their further development
Summary
Overconsumption of fossil fuels has caused many problems, such as global warming and environmental deterioration, which have been paid more and more attention by people all over the world (Liu et al, 2016, 2019c,d; He et al, 2017; Ma et al, 2017; Chen et al, 2019a; Guo et al, 2019c; Pan et al, 2020). Α-MnO2, which have stable 2 × 2 tunnel structure, has received considerable attention in recent years as a cathode material for AZIBs (Figure 1C; Palaniyandy et al, 2019; Gao X. et al, 2020).
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