Use of Ion-Exchange Membranes in Chemical Power Cells

Turaev, D. Yu.

doi:10.1007/s11167-005-0572-9

Cited by 7 publications

(2 citation statements)

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“…The electro‐platting/stripping of Zn anode takes place in the alkaline electrolyte with the assistance of OH − , while the H + ‐involved cathode reaction occurs in the acidic electrolyte. The first OH − /H + ‐DIZB can trace back to the alkaline–acidic Zn–PbO 2 battery in 2005 with the conversion of PbO 2 and PbSO 4 occurring on the cathode in the acidic electrolyte, [12] which was inspired by the phenomenon that alkali and acid can produce electricity by using a bipolar membrane [13] . In their work, only the concept was proposed and the early research was conducted, the deep studies and understandings have not been investigated.…”

Section: Fundamentalsmentioning

confidence: 99%

Aqueous OH⁻/H⁺ Dual‐Ion Zn‐Based Batteries

Cai

Chen

et al. 2022

ChemSusChem

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Aqueous Zn‐based batteries hold multiple advantages of eco‐friendliness, easy accessibility, high safety, easy fabrication, and fast kinetics, while their widespread applications have been greatly limited by the relatively narrow thermodynamically stable potential windows (i. e., 1.23 V) of water and the mismatched pH conditions between cathode and anode, which presents challenges regarding how to maximize the output voltage and the energy density. Recently, aqueous OH−/H+ dual‐ion Zn‐based batteries (OH−/H+‐DIZBs), where the Zn anode reacts with hydroxide ions (OH−) in alkaline electrolyte while hydrogen ions (H+) are involved in the cathode reaction in the acidic electrolyte, have been reported to be capable of broadening the working voltage and improving the energy density, which offers practical feasibility toward overcoming the above limitations. This Review thus takes this chance to investigate the recent progress on aqueous OH−/H+‐DIZBs. First, the concept and the history of such OH−/H+‐DIZBs are introduced, and then special emphasis is put on the working mechanisms, the progress of the development of new batteries, and how the electrolytes improve their performance. Finally, the challenges and opportunities in this field are discussed.

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Section: Fundamentalsmentioning

confidence: 99%

Aqueous OH⁻/H⁺ Dual‐Ion Zn‐Based Batteries

Cai

Chen

et al. 2022

ChemSusChem

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“…The theoretical cell voltage of combining these two electrodes in a dual electrode cell would be 2.057 V with the overall reaction ½O 2 + 2H + + H 2 + 2OH -→ 3H 2 O , ΔE = 1.229 -(-0.828) = 2.057 V . [3] The additional voltage and energy comes from the neutralization reaction H + + OH -→ H 2 O , [4] which has a voltage of 0.828 V under standard conditions, corresponding to neutralization free energy change of ΔG° = -79.9 kJ per mole of water formed. Such a hybrid cell, however, faces serious practical difficulties.…”

Section: Introductionmentioning

confidence: 99%

High-Voltage Dual Electrolyte Electrochemical Power Sources

Cheng¹,

Chan²

2010

ECS Trans.

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A general method of operating a fuel cell or a battery with a positive electrode in acid and negative electrode in alkaline is discussed. This method can increase the operating voltage and power by as much as 50%. The alkaline electrolyte in the negative electrode compartment and the acidic electrolyte in the positive electrode compartment are separated by a bipolar membrane which provides the ionic conductivity between the two electrolytes and the continuous supply of protons and hydroxide anions via the water splitting reaction. The ability of a bipolar membrane to split water into the ions with low energy helps to achieve the cell voltage gained during discharge of the dual electrolyte power source.

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High‐Voltage Rechargeable Alkali–Acid Zn–PbO₂ Hybrid Battery

Cai

Chen

et al. 2020

Angewandte Chemie

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Aqueous rechargeable batteries have attracted attention owning to their advantages of safety, low cost, and sustainability, while the limited electrochemical stability window (1.23 V) of water leads to their failure in competition with organic‐based lithium‐ion batteries. Herein, we report an alkali–acid Zn–PbO2 hybrid aqueous battery obtained by coupling an alkaline Zn anode with an acidic PbO2 cathode. It shows the capability to deliver an impressively high open‐circuit voltage (Voc) of 3.09 V and an operate voltage of 2.95 V at 5 mA cm−2, thanks to the contribution of expanding the voltage window and the electrochemical neutralization energy from the alkali–acid asymmetric‐electrolyte hybrid cell. The hybrid battery can potentially deliver a large area capacity over 2 mAh cm−2 or a high energy density of 252.39 Wh kg−1 and shows almost no fading in area capacity over 250 charge–discharge cycles.

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Use of Ion-Exchange Membranes in Chemical Power Cells

Cited by 7 publications

References 1 publication

Aqueous OH⁻/H⁺ Dual‐Ion Zn‐Based Batteries

Aqueous OH⁻/H⁺ Dual‐Ion Zn‐Based Batteries

High-Voltage Dual Electrolyte Electrochemical Power Sources

High‐Voltage Rechargeable Alkali–Acid Zn–PbO₂ Hybrid Battery

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Use of Ion-Exchange Membranes in Chemical Power Cells

Cited by 7 publications

References 1 publication

Aqueous OH−/H+ Dual‐Ion Zn‐Based Batteries

Aqueous OH−/H+ Dual‐Ion Zn‐Based Batteries

High-Voltage Dual Electrolyte Electrochemical Power Sources

High‐Voltage Rechargeable Alkali–Acid Zn–PbO2 Hybrid Battery

Contact Info

Product

Resources

About

Aqueous OH⁻/H⁺ Dual‐Ion Zn‐Based Batteries

Aqueous OH⁻/H⁺ Dual‐Ion Zn‐Based Batteries

High‐Voltage Rechargeable Alkali–Acid Zn–PbO₂ Hybrid Battery