Superior Polyaniline Cathode Material with Enhanced Capacity for Ammonium Ion Storage

Kuchena, Shelton Farai; Wang, Ying

doi:10.1021/acsaem.0c01791

Cited by 51 publications

(41 citation statements)

References 41 publications

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“…As‐prepared ES‐PANI delivered a highly reversible capacity of 160 mAh g −1 at 1 A g −1 and a high‐capacity retention of 82% after 100 cycles at 5 A g −1 . [ 69 ]…”

Section: Aqueous Batteries With Nonmetal Cations As Charge Carriersmentioning

confidence: 99%

Recent Advances in Aqueous Batteries with Nonmetal Cations as Charge Carriers

Tian

2022

Adv Energy and Sustain Res

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Aqueous-ion batteries (AIBs) are promising candidates for grid storage systems as their advantages of low-cost, environmentally friendliness, and high-level safety. Compared to the organic electrolytes in traditional alkali-metal-ion batteries, aqueous electrolytes always possess higher ionic conductivity. Moreover, they are not sensitive to air humidity, therefore, AIBs can be assembled in air which may reduce the manufacturing costs. [1,2] AIBs has a long history, and it could be traced back to 1859 when Planté proposed a lead-acid battery, where lead dioxide served as the cathode, lead metal as the anode and sulfuric acid as the electrolyte. Until today, this type of lead-acid batteries still retains a market share, and it exhibits an energy density of 30-40 Wh kg À1 .In 1901, Waldemar Jungner developed a nickel-cadmium (Ni-Cd) rechargeable battery, which could deliver a higher energy density up to 60 Wh kg À1 .However, in modern days, the energy density of traditional AIBs cannot satisfy the demand for vehicle. In 1973, the fourth Middle East War broke out and caused the Oil Crisis, which pushed United States Government to fund researches relevant to electric vehicles. Finally, Stanley Whittingham proposed a novel lithiumion battery that composed of Li metal as anode and TiS 2 as cathode in 1978. [3] During operation, Li ion could be reversibly (de)intercalated into (from) TiS 2 , which has a much higher energy density than AIBs, and the reaction mechanisms are totally different from traditional battery systems. However, unsafety issues stopped its stepping into market. Two years later, John B. Goodenough discovered a high-potential cathode material-LiCoO 2 , in which Li þ was stored between layers of structure. [4] In 1991, lithiumion battery (LIB) was first commercialized by Sony Company after Akira Yoshino paired LiCoO 2 with graphite as anodes, which was much safer than batteries with Li metal as anodes. Since then, LIB triggered a global wave of research on rechargeable batteries based on metal ion shuttling. However, metal ion batteries with nonaqueous electrolytes still have safety issues. [5] Searching for safer and higher energy density batteries is still a big challenge. Batteries with aqueous solutions as electrolytes are hopefully good choices. In 1994, the first aqueous rocking-chair LIB (ALIB) was proposed by Dahn et al., however its energy density and cycling life are not satisfying. [6] In 2010, Xia and co-workers successfully addressed the issue of cycling stability of ALIB, and Wang's group developed the water-in-salts electrolyte (WISEs) to enlarge voltage window of electrolyte in 2015, [7,8] which arouse researchers' interests on aqueous metal-ion batteries again. During the past decades, much focus has shifted to Na þ and K þ batteries due to their high natural abundance and low cost. [9][10][11] And aqueous multivalent metal-ion batteries (Al 3þ , Zn 2þ , Ca 2þ , Mg 2þ ) also received much more attention as they could transfer two or three electrons per ion and perform higher volumetric ...

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“…As‐prepared ES‐PANI delivered a highly reversible capacity of 160 mAh g −1 at 1 A g −1 and a high‐capacity retention of 82% after 100 cycles at 5 A g −1 . [ 69 ]…”

Section: Aqueous Batteries With Nonmetal Cations As Charge Carriersmentioning

confidence: 99%

Recent Advances in Aqueous Batteries with Nonmetal Cations as Charge Carriers

Tian

2022

Adv Energy and Sustain Res

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“…Nevertheless, proton (H + ), hydronium (H 3 O + ), and ammonium (NH 4 + ) as inexpensive and sustainable nonmetallic carriers have rarely been studied [ 14 – 16 ]. In recent years, although some electrode materials that can be resided for H + and H 3 O + , such as MoO 3 and WO 3 [ 17 , 18 ], have been reported, their further applications are severely restricted due to the strong acidity of the electrolyte, which leads to strong corrosion of electrode materials and severe side reactions of hydrogen evolution [ 19 – 21 ]. In addition, as presented in Table S1, the infinitely abundant NH 4 + not only exhibits moderate acidity, but also demonstrates smaller molecular weight (18 g mol −1 ) and hydrated ion radius (3.31 Å), which facilitates its rapid diffusion [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Bond-Assisted Ultra-Stable and Fast Aqueous NH4+ Storage

Zhang

Xia

et al. 2021

Nano-Micro Lett.

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Aqueous ammonium ion batteries are regarded as eco-friendly and sustainable energy storage systems. And applicable host for NH4+ in aqueous solution is always in the process of development. On the basis of density functional theory calculations, the excellent performance of NH4+ insertion in Prussian blue analogues (PBAs) is proposed, especially for copper hexacyanoferrate (CuHCF). In this work, we prove the outstanding cycling and rate performance of CuHCF via electrochemical analyses, delivering no capacity fading during ultra-long cycles of 3000 times and high capacity retention of 93.6% at 50 C. One of main contributions to superior performance from highly reversible redox reaction and structural change is verified during the ammoniation/de-ammoniation progresses. More importantly, we propose the NH4+ diffusion mechanism in CuHCF based on continuous formation and fracture of hydrogen bonds from a joint theoretical and experimental study, which is another essential reason for rapid charge transfer and superior NH4+ storage. Lastly, a full cell by coupling CuHCF cathode and polyaniline anode is constructed to explore the practical application of CuHCF. In brief, the outstanding aqueous NH4+ storage in cubic PBAs creates a blueprint for fast and sustainable energy storage.

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“…[25][26][27][28][29] An earlier publication from our group demonstrated PANI is a good host for NH þ 4 ion, with a capacity of 167 mAh g À 1 at a specific current of 1 A g À 1 . [6] The PANI electrode showed good cycling ability because of its good ionic conductivity and reverse convertibility between redox states during cycling. [6] Additionally, Hui Li et al assembled a full AIB with PANI nanorods grown on carbon fibers as anode and NH 4 V 4 O 10 as cathode in a 1 M (NH 4 ) 2 SO 4 aqueous electrolyte.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5] However, very minimum attention has been given to non-metallic charge carriers such as ammonium (NH þ 4 ), proton (H + ) and hydronium (H 3 O + ), although they have very promising electrochemical properties. [6] These non-metallic charge carriers have physical characteristics which are very important for any electrochemical system, such as exhibiting smaller hydration shells in water as compared to metal cations which would result in high ionic conductivity of the electrolytes. [7] In comparison with H 3 O + , Na + and K + , NH þ 4 ion has unique characteristics as shown in Table S1.…”

Section: Introductionmentioning

confidence: 99%

“…[6] The PANI electrode showed good cycling ability because of its good ionic conductivity and reverse convertibility between redox states during cycling. [6] Additionally, Hui Li et al assembled a full AIB with PANI nanorods grown on carbon fibers as anode and NH 4 V 4 O 10 as cathode in a 1 M (NH 4 ) 2 SO 4 aqueous electrolyte. A capacity of 167 mA g À 1 at a specific current of 0.1 A g À 1 was reported along with stable performance under different mechanical deformation.…”

Section: Introductionmentioning

confidence: 99%

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A Full Flexible NH₄⁺ Ion Battery Based on the Concentrated Hydrogel Electrolyte for Enhanced Performance

Kuchena

Wang

2021

Chemistry A European J

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Non-metal ammonium (NH þ 4 ) ions have recently been explored as effective charge carriers in battery systems due to their abundancy, light weight, small hydration shells in water. The research concerning the use of NH þ 4 redox chemistry in batteries, particularly in flexible batteries, is still in its infancy. For the first time, we report a flexible full NH þ 4 ion battery (AIB) composed of a concentrated hydrogel electrolyte sandwiched between NH 4 V 3 O 8 • 2.9H 2 O nanobelts cathode and polyaniline (PANI) anode, for enhanced performance. The hydrogel electrolyte is simply synthesized by using ammonium sulfate, xanthan gum and water. As a reference, the AIB based on the liquid aqueous electrolyte is prepared first, which exhibits a capacity of 121 mAh g À 1 and a capacity retention of 95 % after 400 cycles at a specific current of 0.1 A g À 1 . On the other hand, the simple synthesis of the hydrogel electrolyte allows us to facilely tune and optimize the salt contents in the electrolyte, to maximize the ionic conductivity, transport kinetics, mechanical characteristics, and consequently the battery performance. It is found that the flexible battery based on the hydrogel electrolyte prepared from 3 M ammonium sulfate solution shows the best electrochemical performance, i. e., a capacity of 60 mAh g À 1 while maintaining a capacity retention of 88 % after 250 cycles at a specific current of 0.1 A g À 1 . Moreover, the flexible AIB retains excellent electrochemical performance when bent at different angles, demonstrating remarkable mechanical strength and flexibility. Therefore, this study sheds new light on the utilization of concentrated hydrogel electrolyte in the AIB chemistry, for developments of novel electrochemical energy storage technology with high safety and low cost.

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Superior Polyaniline Cathode Material with Enhanced Capacity for Ammonium Ion Storage

Cited by 51 publications

References 41 publications

Recent Advances in Aqueous Batteries with Nonmetal Cations as Charge Carriers

Recent Advances in Aqueous Batteries with Nonmetal Cations as Charge Carriers

Hydrogen Bond-Assisted Ultra-Stable and Fast Aqueous NH4+ Storage

A Full Flexible NH₄⁺ Ion Battery Based on the Concentrated Hydrogel Electrolyte for Enhanced Performance

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Superior Polyaniline Cathode Material with Enhanced Capacity for Ammonium Ion Storage

Cited by 51 publications

References 41 publications

Recent Advances in Aqueous Batteries with Nonmetal Cations as Charge Carriers

Recent Advances in Aqueous Batteries with Nonmetal Cations as Charge Carriers

Hydrogen Bond-Assisted Ultra-Stable and Fast Aqueous NH4+ Storage

A Full Flexible NH4+ Ion Battery Based on the Concentrated Hydrogel Electrolyte for Enhanced Performance

Contact Info

Product

Resources

About

A Full Flexible NH₄⁺ Ion Battery Based on the Concentrated Hydrogel Electrolyte for Enhanced Performance