Sustainable and high-performance Zn dual-ion batteries with a hydrogel-based water-in-salt electrolyte

Sun, Lu; Yao, Yuanqing; Dai, Lixin; Jiao, Menggai; Ding, Baofu; Yu, Qiangmin; Tang, Jun; Liu, Bilu

doi:10.1016/j.ensm.2022.02.012

Cited by 48 publications

(34 citation statements)

References 38 publications

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“…HiS E−P15 with 10 M ZnCl 2 , can have only ∼14 wt% water, corresponding to a molar ratio of Zn 2+ :H 2 O∼1 : 2, reshaping Zn 2+ coordination (Figure 3A). [38] WISE or DES‐based gel electrolyte can be promising candidates, e. g ., ZnCl 2 ‐based DES, Zn(ClO 4 ) 2 ‐based DES, Zn(OTf) 2 ‐LiTFSI‐based WISE, Zn(TFSI) 2 ‐based DES, Zn(BF 4 ) 2 ‐based IL [7l,39] . in situ polymerization can be applied to avoid extra sources of water during processing.…”

Section: Current Approaches and Challenges On Controlling Water Activ...mentioning

confidence: 99%

“… Zinc coordination (A) in HiSE−P15, Reprinted with permission from Ref. [38] Copyright 2022, Elsevier, (B) in PAM‐ZnSO 4 forming stable [Zn(H 2 O) m (glycerol) n ] 2+ , Reprinted with permission from Ref. [15c] Copyright 2022, Elsevier, and (C) in PASHE, PASHE‐[Zn(H 2 O) 5 ] 2+ is achieved with −SO 3 − binding to Zn 2+ , Reprinted with permission from Ref.…”

Section: Current Approaches and Challenges On Controlling Water Activ...mentioning

confidence: 99%

“…But it may lead to change of water content in the gel, depending on the water absorption/retention ability of polymeric matrix and detailed treatment. So far, only a few cases of gel electrolytes for ZIB report the water contents [38,42b, 52] . Also, control method is expected to be scalable.…”

Section: Outlook and Perspectivementioning

confidence: 99%

“…Figure3. Zinc coordination (A) in HiSEÀ P15, Reprinted with permission from Ref [38]. Copyright 2022, Elsevier, (B) in PAM-ZnSO 4 forming stable [Zn(H 2 O) m (glycerol) n ] 2 + , Reprinted with permission from Ref.…”

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confidence: 99%

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Influence of Water on Gel Electrolytes for Zinc‐Ion Batteries

Liu

Yang

et al. 2023

Chemistry An Asian Journal

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Gel electrolytes are being intensively explored for aqueous rechargeable zinc-ion batteries, especially towards high performance and multi-functionalities. Water plays a central role on the fundamental properties, interface reaction/interaction, and performance of the gel-type zinc electrolyte. In this review, the influence of water on the physiochemical properties of gel electrolytes is focused on. The correlation between water activity and the fundamental properties of zinc electrolytes is presented. Current approaches and challenges in manipulating water activity and the consequent influence on the electrochemical stability, transport, and interface kinetics of gel electrolytes are summarized. An outlook on approaches to tuning and investigating water activity is provided to shed light on the design of advanced gel electrolytes.

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Section: Current Approaches and Challenges On Controlling Water Activ...mentioning

confidence: 99%

Section: Current Approaches and Challenges On Controlling Water Activ...mentioning

confidence: 99%

Section: Outlook and Perspectivementioning

confidence: 99%

mentioning

confidence: 99%

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Influence of Water on Gel Electrolytes for Zinc‐Ion Batteries

Liu

Yang

et al. 2023

Chemistry An Asian Journal

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“…On the other hand, supercapacitors do not need the presence of this protective layer, making the development of WISSEs for this purpose more focused in strategies to enhance the cell voltage. In terms of transition metal salts, only few WISSEs have been reported in literature being AlCl3 (Pan et al, 2019), Al(ClO4)3 (Zafar et al, 2022a), ZnCl2 (Sun et al, 2022;B. Yang et al, 2022), and Zn(ClO4) (Zafar et al, 2022b) the only traced out so far.…”

Section: Water In Single Salt Electrolyte (Wisse)mentioning

confidence: 99%

Low-cost water-in-salt electrolytes for electrochemical energy storage applications: a short review

Sakita

Noce

2022

Eclet. Quim. J.

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The utilization of aqueous electrolytes is an emerging field in batteries and supercapacitors to overcome the safety concerns about the flammability of the typical organic electrolytes employed in these devices. Yet, aqueous diluted electrolytes limit the electrochemical stability window (ESW) restricting the device cell voltage. Surprisingly, the use of water-in-salt electrolytes (WISEs) has demonstrated the capability of suppressing the free water content of solution leading to an ESW expansion. On the other hand, since the first report of WISEs, most of these electrolytes have employed expensive salts for their preparation, hindering the replacement of the current electrolytes, utilized in energy storage devices, by WISEs. On the other hand, in recent years, the employment of low-cost salts for WISEs has been investigated as a strategy to circumvent these economic issues revealing to be feasible for widening the cell voltage. Herein, we summarize the recent progress and developments of WISEs produced with low-cost salts providing the challenges and perspectives toward their application in electrochemical energy storage.

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Gel Polymer Electrolyte toward Large‐Scale Application of Aqueous Zinc Batteries

Tang

Shi

et al. 2023

Adv Funct Materials

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Aqueous zinc batteries are promising candidates for energy storage and conversion devices in the “post‐lithium” era due to their high energy density, high safety, and low cost. The electrolyte plays an important role in zinc batteries by conducting and separating the positive and negative electrodes. However, the issues of zinc dendrites growth, corrosion, by‐product formation, hydrogen evolution and leakage, and evaporation of the aqueous electrolytes affect the commercialization of the batteries. Moreover, the widely used aqueous electrolytes result in large battery sizes, which are not conducive to the emerging smart devices. The intrinsic properties of gel polymer electrolytes (GPEs) can solve the above problems. In order to promote the wider application of GPEs‐based zinc batteries, in this review, the working principle and the current problems of zinc batteries are first introduced, andthe merits of GPEs compared to aqueous electrolytes are then summarized. Subsequently, a series of challenges and corresponding strategies faced by GPE is discussed, and an outlook for its future development is finally proposed.

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Sustainable and high-performance Zn dual-ion batteries with a hydrogel-based water-in-salt electrolyte

Cited by 48 publications

References 38 publications

Influence of Water on Gel Electrolytes for Zinc‐Ion Batteries

Influence of Water on Gel Electrolytes for Zinc‐Ion Batteries

Low-cost water-in-salt electrolytes for electrochemical energy storage applications: a short review

Gel Polymer Electrolyte toward Large‐Scale Application of Aqueous Zinc Batteries

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