Enhanced zinc electrode rechargeability in alkaline electrolytes containing hydrophilic organic materials with positive electrode compatibility

Kakeya, Tadashi; Nakata, Ayako; Arai, Hajime; Ogumi, Zempachi

doi:10.1016/j.jpowsour.2018.08.026

Cited by 20 publications

(10 citation statements)

References 15 publications

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“…current density [17][18][19][20][21][22], electrolyte flow rate [21,22] are well reported. The use of additives to control zinc morphology has been extensively studied in zinc-based batteries and zinc electroplating [23][24][25][26][27][28][29][30][31][32][33][34]. However, literature concerning the effect of additives on Zn-Ni flow cells are less common [35,36].…”

Section: Introductionmentioning

confidence: 99%

The effect of electrolyte and additive concentration on zinc–nickel flow cell performance

Trudgeon

2021

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

The effect of electrolyte and additive concentration on zinc–nickel flow cell performance

Trudgeon

2021

Electrochimica Acta

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“…Furthermore, R. Khezri et al [54] revealed that a combination of potassium persulfate (K 2 S 2 O 8 or KPS) with an alkaline electrolyte can significantly improve electrochemical properties and the performance of RZABs. Table 4 presents the major challenges in aqueous electrolyte and proposed solution for RZABs [7,9,13,16,48,51,55]. Table 5 presents the summary of recently investigated electrolyte (alkaline) additive for ZABs [33,35,[53][54][55].…”

Section: Advance Strategies Of Alkaline Electrolytesmentioning

confidence: 99%

“…Table 4 presents the major challenges in aqueous electrolyte and proposed solution for RZABs [7,9,13,16,48,51,55]. Table 5 presents the summary of recently investigated electrolyte (alkaline) additive for ZABs [33,35,[53][54][55].…”

Section: Advance Strategies Of Alkaline Electrolytesmentioning

confidence: 99%

Development of electrolytes for rechargeable zinc-air batteries: current progress, challenges, and future outlooks

et al. 2022

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This review presents the current developments of various electrolyte systems for secondary zinc air batteries (SZABs). The challenges and advancements in aqueous electrolytes (e.g., alkaline, acidic and neutral) and non-aqueous electrolytes (e.g., solid polymer electrolyte, ionic liquids, gel polymer electrolyte, and deep eutectic solvents) development have been reviewed. Moreover, chemical and physical characteristics of electrolytes such as power density, capacity, rate performance, cyclic ability, and safety that play a vital role in recital of the SZABs have been reviewed. Finally, the challenges and limitations that must be investigated and possible future research areas of SZABs electrolytes are discussed.

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“…More importantly, the strong hydrophilicity can reduce the water activity and move the reaction of

{\rm{Zn}}({\rm{OH}})_4^{2 - } \leftrightarrow {\rm{ZnO}} + {{\rm{H}}_2}{\rm{O}} + 2{\rm{O}}{{\rm{H}}^{ - 1}}

to the right‐hand side, relieving the loss of soluble Zn(OH) 4 2− and facilitating the homogeneous deposition of ZnO inside microspheres. [ 26–28 ] Therefore, sufficient Zn(OH) 4 2− and ZnO result in a uniform deposition of Zn and suppression of the Zn dendrites growth during charging process. Eventually, the regulation of the released alkali and suppression of Zn dendrites growth enable assembled QSZAB a long cyclic life.…”

Section: Introductionmentioning

confidence: 99%

Regulation of Released Alkali from Gel Polymer Electrolyte in Quasi‐Solid State Zn–Air Battery

Mao

Wang

et al. 2023

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Gel polymer electrolyte (GPE) in quasi‐solid state Zn–air battery (QSZAB) will release alkali during cycling, resulting in gradual dehydration of GPE, corrosion of Zn electrode, Zn dendrites growth, and therefore inferior performance. Here, hollow Sn microspheres are prepared on Zn substrate by the technique of colloidal self‐assembly. The inner surfaces of hollow Sn microspheres are modified by 2‐hydroxypropyl‐β‐cyclodextrin (hollow Sn‐inner HPβCD) to regulate the released alkali at GPE|anode interface. The hollow Sn‐inner HPβCD can lessen the leakage of released alkali, make stored alkali diffuse back to GPE during the charging process, and mitigate the loss of soluble Zn(OH)42− to suppress Zn dendrites growth. Resultantly, GPE in QSZAB with hollow Sn‐inner HPβCD exhibits a high retention capacity for alkaline solution. The cell also exhibits a long cyclic lifespan of 127 h due to the effective regulation of released alkali, which outperforms QSZAB without hollow Sn‐inner HPβCD by 7.94 times. This work rivets the regulation of released alkali at GPE|anode interface, providing new insight to improve QSZABs’ performance.

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Enhanced zinc electrode rechargeability in alkaline electrolytes containing hydrophilic organic materials with positive electrode compatibility

Cited by 20 publications

References 15 publications

The effect of electrolyte and additive concentration on zinc–nickel flow cell performance

The effect of electrolyte and additive concentration on zinc–nickel flow cell performance

Development of electrolytes for rechargeable zinc-air batteries: current progress, challenges, and future outlooks

Regulation of Released Alkali from Gel Polymer Electrolyte in Quasi‐Solid State Zn–Air Battery

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