Reversible aluminum ion storage mechanism in Ti-deficient rutile titanium dioxide anode for aqueous aluminum-ion batteries

Wu, Xibing; Qin, Ning; Wang, Feng; Li, Zhihui; Qin, Jiayao; Huang, Guojing; Wang, Dianhui; Liu, Peng; Yao, Qingrong; Lu, Zhouguang; Deng, Jianqiu

doi:10.1016/j.ensm.2021.02.040

Cited by 62 publications

(35 citation statements)

References 68 publications

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“…14,15 To solve these problems, various methods have been explored, such as substituting Al anode with host electrode materials that can facilitate the intercalation/de-intercalation of Al 3+ . [16][17][18][19] As reported, there are limited types of electrode materials that can be used in aqueous Al ion batteries. Among them, hexagonal MoO 3 is one of the promising materials, due to its unique tunnel structure that can exhibit rapid charge transfer dynamics.…”

Section: Introductionmentioning

confidence: 99%

Stretchable fiber‐shaped aqueous aluminum ion batteries

Xiong

Zhou

et al. 2022

EcoMat

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The emerging wearable electronics have significantly motivated the development of fiber‐shaped batteries with excellent electrochemical performance, safety, and flexibility. Aluminum (Al) ion batteries are potential candidates due to their high natural abundance, three‐electron‐redox behavior, and low cost. However, the integration of Al ion battery into wearable electronics remains unexplored. Herein, a stretchable fiber‐shaped aqueous Al ion battery is reported, which involves manganese hexacyanoferrate cathode, graphene oxide decorated MoO3 anode, and hydrogel electrolyte. The resulting fiber‐shaped battery exhibits good stretching properties and cycling stability (91.6% over 100 cycles at 1 A cm−3). Moreover, by employing a rocking‐chair energy storage mechanism, the fiber‐shaped battery offers a high specific capacity of 42 mAh cm−3 at 0.5 A cm−3, corresponding to a high specific energy of 30.6 mWh cm−3. As a demonstration, the fiber‐based Al ion batteries are integrated into wearable textiles to power LED light, demonstrating the feasibility in stretchable and wearable electronics.

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Section: Introductionmentioning

confidence: 99%

Stretchable fiber‐shaped aqueous aluminum ion batteries

Xiong

Zhou

et al. 2022

EcoMat

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“…9,22−24 Among these strategies, ion vacancy engineering is an effective method to rationally tune the Na-storage properties of TiO 2 , 23 as well as the Li-ion, Mg-ion, and Alion storage performance. 10,22,25 Vacancies can provide additional alkaline ion insertion sites, enhancing the intercalation and conversion capacities. The Na-storage performance of anatase TiO 2 as an anode for NIBs has been enhanced efficiently using the aforementioned strategies, yet challenges remain in the mechanism of sodiation/desodiation, being a vital obstacle for the development of a high-performance TiO 2 electrode.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The practical Na-storage capacity of TiO 2 anode is much less than its theoretical value (335 mAh g –1 ) due to the intrinsic semiconductor property and sluggish Na-ion transport kinetics of TiO 2 . Many strategies have been employed to enhance the performance of TiO 2 anode in NIBs, such as nanostructure design, element doping, surface coating of carbonaceous materials, and anion vacancy engineering. ,− Among these strategies, ion vacancy engineering is an effective method to rationally tune the Na-storage properties of TiO 2 , as well as the Li-ion, Mg-ion, and Al-ion storage performance. ,, Vacancies can provide additional alkaline ion insertion sites, enhancing the intercalation and conversion capacities.…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Sodium Storage Properties and Mechanism of Cation-Deficient Ti_0.84□_0.16O_1.42F_0.37(OH)_0.21

Zhong

Wang

Zhang

et al. 2021

ACS Appl. Energy Mater.

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Na-ion batteries (NIBs) are potential candidates for electrical energy storage systems owing to the naturally abundant sodium resources. In contrast to Li-ion batteries (LIBs), the anodes of NIBs suffer from the slow kinetics of sodiation because of larger ion radius, which deteriorates their performance. In this work, the cationic vacancies are introduced by a solvothermal method to produce cation-deficient Ti 0.84 □ 0.16 O 1.42 F 0.37 (OH) 0.21 with improved sodium storage performance, showing a charge capacity (215 mAh g −1 , 0.1C) and remarkable long-term cyclic stability (the capacity retention rate is 94.6% under 1C over 700 cycles). The insertion of Na ion into the vacancies and lattice gap without dramatic structure change is verified by in situ synchrotron-based X-ray diffraction (XRD) and ex situ high-resolution transmission electron microscopy (HRTEM). The introduced cationic vacancies are beneficial to accelerate sodium storage kinetics and to improve electrochemical performance. This work highlights the injecting cationic vacancies into metal oxides is a positive strategy to achieve new anode materials for NIBs.

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“…However, the current non-aqueous halides ionic liquid electrolytes of high cost, severe corrosivity, air sensitivity, and environmental concerns have significantly restricted their practical applications [1][2][3] . In contrast, aqueous electrolytes with features of higher safety, lower cost, H2O/O2 insensitivity, and easier fabrication has attracted remarkable attention [4][5][6] . Among such battery prototype, manganese oxides with layered structure and high energy density are widely employed as the positive electrode materials for assembling aqueous aluminum ion batteries (AAIBs).…”

Section: Introductionmentioning

confidence: 99%

Stable aqueous aluminum-manganese photoelectrochemical cells with high-rate and high-efficiency abilities

Jiao

Zhang

Song

et al. 2021

Preprint

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Aqueous aluminum-ion batteries (AAIBs) are potential candidates for large-scale energy storage devices for their advantages of high energy density, resource abundance, low cost, safety, and environmental friendliness. Due to various redox procedures, good reversibility, and high discharge potential, the aqueous aluminum-manganese oxide battery has drawn wide attention, while the critical issues induced from slow kinetics and undesired soluble Mn2+ lead to slow charging, poor rate capability, and low energy density. However, there is very limited progress for performance improvement via conventional chemical or physical modification approaches. To overcome these challenges, an efficient photo-regulation strategy has been proposed in terms of direct radiating visible light on the cell during the galvanostatic charging and discharging. The efficient separation and transmission of photoelectrons in the photo positive electrode dramatically improves the dynamics, and fast charging and enhanced rate performance could be achieved. Photo-oxidation behavior can effectively promote the conversion of soluble Mn2+, thus further enhancing the energy density of the as-assembled aluminum-manganese battery. Furthermore, a photo-conversion efficiency of up to 1.2% has been acquired. Based on the photo-regulation strategy, the mechanism of the photoelectrochemical coupling system has been understood, which opens a promising route for achieving photoelectrochemical batteries with high energy density and fast charge.

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Reversible aluminum ion storage mechanism in Ti-deficient rutile titanium dioxide anode for aqueous aluminum-ion batteries

Cited by 62 publications

References 68 publications

Stretchable fiber‐shaped aqueous aluminum ion batteries

Stretchable fiber‐shaped aqueous aluminum ion batteries

Unraveling the Sodium Storage Properties and Mechanism of Cation-Deficient Ti_0.84□_0.16O_1.42F_0.37(OH)_0.21

Stable aqueous aluminum-manganese photoelectrochemical cells with high-rate and high-efficiency abilities

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Reversible aluminum ion storage mechanism in Ti-deficient rutile titanium dioxide anode for aqueous aluminum-ion batteries

Cited by 62 publications

References 68 publications

Stretchable fiber‐shaped aqueous aluminum ion batteries

Stretchable fiber‐shaped aqueous aluminum ion batteries

Unraveling the Sodium Storage Properties and Mechanism of Cation-Deficient Ti0.84□0.16O1.42F0.37(OH)0.21

Stable aqueous aluminum-manganese photoelectrochemical cells with high-rate and high-efficiency abilities

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Unraveling the Sodium Storage Properties and Mechanism of Cation-Deficient Ti_0.84□_0.16O_1.42F_0.37(OH)_0.21