3D printing of customized MnO2 cathode for aqueous zinc-ion batteries

LIU, Zhen; He, Hanbing; Luo, Zexiang; Zeng, Jing

doi:10.1016/s1003-6326(23)66175-8

Cited by 8 publications

(1 citation statement)

References 28 publications

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“…Manganese oxides with various valence states (+II, +III, and +IV) have attracted considerable interest because of the variety of their crystal structures and unique properties [1,2]. They have a wide range of potential applications in energy conversion and storage, such as lithium batteries, zinc-air batteries, capacitors, fuel cells, and solar cells, because of their low cost, environmental friendliness, and electrochemical properties in multiple oxidation states [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

High-Rate One-Dimensional α-MnO2 Anode for Lithium-Ion Batteries: Impact of Polymorphic and Crystallographic Features on Lithium Storage

Kim,

Cha,

Kim

2023

Nanomaterials

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Manganese dioxide (MnO2) exists in a variety of polymorphs and crystallographic structures. The electrochemical performance of Li storage can vary depending on the polymorph and the morphology. In this study, we present a new approach to fabricate polymorph- and aspect-ratio-controlled α-MnO2 nanorods. First, δ-MnO2 nanoparticles were synthesized using a solution plasma process assisted by three types of sugars (sucrose, glucose, and fructose) as reducing promoters; this revealed different morphologies depending on the nucleation rate and reaction time from the molecular structure of the sugars. Based on the morphology of δ-MnO2, the polymorphic-transformed three types of α-MnO2 nanorods showed different aspect ratios (c/a), which highly affected the transport of Li ions. Among them, a relatively small aspect ratio (c/a = 5.1) and wide width of α-MnO2-S nanorods (sucrose-assisted) induced facile Li-ion transport in the interior of the particles through an increased Li-ion pathway. Consequently, α-MnO2-S exhibited superior battery performance with a high-rate capability of 673 mAh g−1 at 2 A g−1, and it delivered a high reversible capacity of 1169 mAh g−1 at 0.5 A g−1 after 200 cycles. Our findings demonstrated that polymorphs and crystallographic properties are crucial factors in the electrode design of high-performance Li-ion batteries.

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Section: Introductionmentioning

confidence: 99%

High-Rate One-Dimensional α-MnO2 Anode for Lithium-Ion Batteries: Impact of Polymorphic and Crystallographic Features on Lithium Storage

Kim,

Cha,

Kim

2023

Nanomaterials

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Enhanced Hydrogen Bonding Through Strong Water‐Locking Additives for Long‐Term Cycling of Zinc Ion Batteries

Jiang,

Naren,

Chen

et al. 2024

Adv Funct Materials

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The promising energy storage devices, zinc ion batteries (ZIBs), face challenges such as dendritic growth and side reactions, which hinder their application and development. As a polar group, hydroxyl groups can utilize hydrogen bonding to stably anchor water molecules, preventing contact between water and the anode. Moreover, they can attract and guide Zn2+ to rapidly and uniformly deposit on the anode. Here, the introduction of multi‐hydroxyl water‐locking additive Lactobionic acid (LA) molecules is proposed into conventional electrolytes. Through an in situ reaction between the highly reactive carboxyl groups on LA molecules and the zinc anode, a stable multi‐hydroxyl protective layer is formed on the anode surface, effectively preventing interface corrosion and dendritic growth. As a result, the Zn||Zn symmetric cell with LA exhibits remarkable performance, cycling for 2300 h under 1 mA cm−2 and 1 mAh cm−2. Even under more rigorous conditions of 10 mA cm−2 and 10 mAh cm−2, it maintains over 800 h of cycling durability. Moreover, in the Zn||NH4V4O10 full cell configuration, an impressive capacity retention rate of 80.35% after 2000 cycles at a current density of 5 A g−1. This innovative method can open a new avenue for designing high‐performance ZIBs.

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In situ polymerization preparation of K0.5Mn2O4·1.5H2O/PDA composite with excellent zinc storage performance

Li,

Zhu

2024

Electrochimica Acta

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3D printing of customized MnO2 cathode for aqueous zinc-ion batteries

Cited by 8 publications

References 28 publications

High-Rate One-Dimensional α-MnO2 Anode for Lithium-Ion Batteries: Impact of Polymorphic and Crystallographic Features on Lithium Storage

High-Rate One-Dimensional α-MnO2 Anode for Lithium-Ion Batteries: Impact of Polymorphic and Crystallographic Features on Lithium Storage

Enhanced Hydrogen Bonding Through Strong Water‐Locking Additives for Long‐Term Cycling of Zinc Ion Batteries

In situ polymerization preparation of K0.5Mn2O4·1.5H2O/PDA composite with excellent zinc storage performance

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