Bottom‐Up Design of a Green and Transient Zinc‐Ion Battery with Ultralong Lifespan (Small 7/2023)

Mittal, Neeru; Ojanguren, Alazne; Kundu, Dipan; Lizundia, Erlantz; Niederberger, Markus

doi:10.1002/smll.202370044

Cited by 2 publications

(4 citation statements)

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“…The constructed battery prototype can provide an open-circuit voltage of 1.58 V (Figure S19, Supporting Information), which is sufficient to power low power consumption electronic components and is 0.46 V above our previous transient ZIB prototype. [79] Furthermore, the transiency of the assembled Zn/𝛼-MnO 2 system is proven in Figure 7e, where the battery components begin to disintegrate after 2 h immersion in water (pH of 5.9) at 70 °C and almost completely disintegrates after 101 days (Figure S20, Supporting Information). Initially, watersoluble hydrolysis products (caproic acid, succinic acid, valeric acid, and butyric acid) are expelled from the PCL encasing.…”

Section: Battery Performance and Transiencymentioning

confidence: 91%

Chitin Nanofibrils from Fungi for Hierarchical Gel Polymer Electrolytes for Transient Zinc‐Ion Batteries with Stable Zn Electrodeposition

Ruiz

Michel

Niederberger

et al. 2023

Small

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Rechargeable batteries play an integral role toward carbon neutrality. Environmentally sustainable batteries should consider the trade‐offs between material renewability, processability, thermo‐mechanical and electrochemical performance, as well as transiency. To address this dilemma, we follow circular economy principles to fabricate fungal chitin nanofibril (ChNF) gel polymer electrolytes (GPEs) for zinc‐ion batteries. These biocolloids are physically entangled into hierarchical hydrogels with specific surface areas of 49.5 m2·g−1. Ionic conductivities of 54.1 mS·cm−1 and a Zn2+ transference number of 0.468 are reached, outperforming conventional non‐renewable/non‐biodegradable glass microfibre separator–liquid electrolyte pairs. Enabled by its mechanically elastic properties and large water uptake, a stable Zn electrodeposition in symmetric Zn|Zn configuration with a lifespan above 600 h at 9.5 mA·cm−2 is obtained. At 100 mA·g−1, the discharge capacity of Zn/α‐MnO2 full cells increases above 500 cycles when replacing glass microfiber separators with ChNF GPEs, while the rate performance remains comparable to glass microfiber separators. To make the battery completely transient, the metallic current collectors are replaced by biodegradable polyester/carbon black composites undergoing degradation in water at 70 °C. This work demonstrates the applicability of bio‐based materials to fabricate green and electrochemically competitive batteries with potential applications in sustainable portable electronics, or biomedicine.

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Section: Battery Performance and Transiencymentioning

confidence: 91%

Chitin Nanofibrils from Fungi for Hierarchical Gel Polymer Electrolytes for Transient Zinc‐Ion Batteries with Stable Zn Electrodeposition

Ruiz

Michel

Niederberger

et al. 2023

Small

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“…A pouch cell made of a ≈25 μm thick agarose layer enabled the stable operation of a Zn ion battery with an open‐circuit voltage of 1.123 V and a discharge capacity of 157 mAh g −1 after 200 cycles at a current density of 50 mA g −1 . [ 50 ] The aforementioned encapsulation materials are flexible but not stretchable, and their mechanical characteristics may hinder to develop stretchable transient energy storage. A biodegradable elastomer poly(1,8‐octanediol ‐co ‐citrate) (POC) [ 51 ] and its derivative, (poly(octamethylene maleate (anhydride) citrate)) (POMaC), [ 52 ] can be promising encapsulation for the stretchable energy storage.…”

Section: Transient Materialsmentioning

confidence: 99%

“…Zinc‐ion batteries with multivalent ions (Zn 2+ ) are a promising alternative to developing sustainable secondary batteries owing to their benignity and abundance in the earth and promise high gravimetric and volumetric energy densities for monovalent ions (Li and Na). [ 50 ] Mittal et al reported a transient zinc‐ion battery comprising a Zn foil, polydopamine‐carbon composite, agarose‐carboxymethyl cellulose hydrogel, and agarose film as anode, cathode, electrolyte, and encapsulation, respectively (Figure 8g). [ 62 ] The completed zinc‐ion battery showed a capacity of 264 mAh g −1 in the first cycle and an open‐circuit voltage of 1.123 V (Figure 8h,i).…”

Section: Energy Storagementioning

confidence: 99%

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Recent Progress in Transient Energy Storage using Biodegradable Materials

Yamada

2023

Adv Energy and Sustain Res

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With the development of wireless sensor networks, electrical waste that remains in the environment is an inevitable issue in achieving sustainability and progress in electronics. Transient electronics that disappear after a prescribed time are of interest in electronics and material sciences. Such devices comprise naturally sourced materials that degrade without harmful or toxic substances during biodegradation. Although there are reports on transient electronic devices, including transistors, sensors, and radio frequency circuits, insufficient research has been conducted on the energy storage essential for operating transient devices. This review highlights the recent progress in developing transient energy storage. First, materials for transient energy storage, including conductors, electrolytes, and gels, are introduced. Second, transient supercapacitors, pseudocapacitors, primary batteries, and secondary batteries, are described and summarized. Finally, this review concludes and discusses the prospect of transient energy storage. The continuous progress of transient batteries and integration with transient devices are promising for sustainable electronics in the future.

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Bottom‐Up Design of a Green and Transient Zinc‐Ion Battery with Ultralong Lifespan (Small 7/2023)

Cited by 2 publications

References 0 publications

Chitin Nanofibrils from Fungi for Hierarchical Gel Polymer Electrolytes for Transient Zinc‐Ion Batteries with Stable Zn Electrodeposition

Chitin Nanofibrils from Fungi for Hierarchical Gel Polymer Electrolytes for Transient Zinc‐Ion Batteries with Stable Zn Electrodeposition

Recent Progress in Transient Energy Storage using Biodegradable Materials

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