A novel rechargeable zinc–copper battery without a separator

Mypati, Sreemannarayana; Khazaeli, Ali; Barz, Dominik P. J.

doi:10.1016/j.est.2021.103109

Cited by 6 publications

(4 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Meanwhile, the SSE or IEM is hard to manufacture and is highly expensive, which markedly limits the practical applications. When Na + hydrogel electrolytes were used as cheaper alternatives, 19 the cycling performance was largely compromised, with only 43% capacity retention after 100 cycles. In our case, the battery can cycle for 485 cycles with 71% retention.…”

Section: Resultsmentioning

confidence: 99%

“…The first one is to replace the conventional separator with a solid-state electrolyte or an ion-exchange membrane (Figure b), − which physically decouple Zn 2+ /Zn and Cu 2+ /Cu reactions. To balance the charge, extra cations or anions must be used to commute between the catholyte and anolyte solutions. − However, these solid electrolytes and membranes are difficult to manufacture and highly expensive. , Moreover, using extra salts and electrolytes dramatically increases the battery mass, which decreases the practical energy density. Additionally, this method makes the battery design complicated to use.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Building a Rechargeable Voltaic Battery via Reversible Oxide Anion Insertion in Copper Electrodes

Gomez,

Oli,

Chang

et al. 2024

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Voltaic pile, the very first battery built by humanity in 1800, plays a seminal role in battery development history. However, the premature design leads to the inevitable copper ion dissolution issue, which dictates its primary battery nature. To address this issue, solid-state electrolytes, ion exchange membranes, and/or sophisticated electrolytes are widely utilized, leading to high costs and complicated cell configuration. Herein, we build a rechargeable zinc−copper voltaic battery from simple and cheap electrolyte/ separator materials, thus eliminating the need to use the above components. Notably, our battery leverages the Zn 4 SO 4 (OH) 6 •xH 2 O precipitation in ZnSO 4 electrolytes, a common side reaction in zinc batteries, to provide a "locally alkaline" environment for copper electrodes. Consequently, oxide (O 2− ) anion insertion takes place and readily transforms copper to copper(I) oxide (Cu 2 O) without any copper ion dissolution issue. Therefore, this battery realizes a high capacity of ∼370 mA h g −1 and a long cycling of ∼500 cycles. Our work provides an innovative approach to stabilize anion insertion in metal electrodes for energy storage.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Building a Rechargeable Voltaic Battery via Reversible Oxide Anion Insertion in Copper Electrodes

Gomez,

Oli,

Chang

et al. 2024

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…此外，这种利用高浓度盐进行去溶剂化以达到相分离的方法，也可以扩展到其他使用氯离子作为电解质的电池中，并且效果比直接用离子交换膜要好. 另一种可行的方法是使用水凝胶 [25] 或者固态电解质 [26] [27] .…”

Section: A C C E P T E Dunclassified

Aqueous copper batteries for future energy storage

Feng,

Zhu,

Huang

et al. 2024

Chin. Sci. Bull.

View full text Add to dashboard Cite

“…The historic Daniell cell, invented by the British chemist John Frederic Daniell in 1836, is popularly known as the zinc-copper battery, which integrates the merits of high theoretical capacity and abundant resources for both Zn and Cu. Several modern battery designs have been developed to satisfy different application scenarios 9 , 10 ; however, the Daniell cell is regarded as a primary cell due to the irreversibility (in neutral solution) or passivation of Cu 2 O formed during discharge (in alkaline solution) 11 . It is currently used in chemistry curricula to demonstrate the battery working principle by using a salt bridge to facilitate SO 4 2− anion shuttling between the cathode and anode.…”

Section: Introductionmentioning

confidence: 99%

Unravelling rechargeable zinc-copper batteries by a chloride shuttle in a biphasic electrolyte

Chen

Lei

et al. 2023

Nat Commun

View full text Add to dashboard Cite

The zinc-copper redox couple exhibits several merits, which motivated us to reconstruct the rechargeable Daniell cell by combining chloride shuttle chemistry in a zinc chloride-based aqueous/organic biphasic electrolyte. An ion-selective interface was established to restrict the copper ions in the aqueous phase while ensuring chloride transfer. We demonstrated that the copper-water-chloro solvation complexes are the descriptors, which are predominant in aqueous solutions with optimized concentrations of zinc chloride; thus, copper crossover is prevented. Without this prevention, the copper ions are mostly in the hydration state and exhibit high spontaneity to be solvated in the organic phase. The zinc-copper cell delivers a highly reversible capacity of 395 mAh g−1 with nearly 100% coulombic efficiency, affording a high energy density of 380 Wh kg−1 based on the copper chloride mass. The proposed battery chemistry is expandable to other metal chlorides, which widens the cathode materials available for aqueous chloride ion batteries.

show abstract

A novel rechargeable zinc–copper battery without a separator

Cited by 6 publications

References 50 publications

Building a Rechargeable Voltaic Battery via Reversible Oxide Anion Insertion in Copper Electrodes

Building a Rechargeable Voltaic Battery via Reversible Oxide Anion Insertion in Copper Electrodes

Aqueous copper batteries for future energy storage

Unravelling rechargeable zinc-copper batteries by a chloride shuttle in a biphasic electrolyte

Contact Info

Product

Resources

About