Wearable Textile‐Based Co−Zn Alkaline Microbattery with High Energy Density and Excellent Reliability

Wang, Yao; Hong, Xufeng; Guo, Yaqing; Zhao, Yunlong; Liao, Xiaobin; Liu, Xiong; Li, Qi; He, Liang; Mai, Liqiang

doi:10.1002/smll.202000293

Cited by 54 publications

(44 citation statements)

References 42 publications

(32 reference statements)

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“…[27] Besides, this microdevice also shows a small series resistance (Figure S14, Supporting Information). At the low current density of 2 mA cm −2 , a maximum areal specific capacity of 1932.3 μAh cm −2 is achieved (Figure 3f,g; Table S1, Supporting Information), far exceeding those of all reported aqueous MBs, [15][16][17][19][20][21][22][23][52][53][54][55][56][57] highperformance organic MBs (lithium-ion MBs, [12,24,58,59] sodiumion MBs, [60] and dual-ion MBs [61] ), state-of-the-art zinc-ion MSCs, [62,63] and lithium-ion MSCs [64] (Figure 3i). Even at higher current densities of 8 and 10 mA cm −2 , it still exhibits excellent areal specific capacity of 622.43 and 407 μAh cm −2 with high Coulombic efficiency of 97.4% and 98.1%, respectively (Figure 3f,g).…”

Section: −mentioning

confidence: 88%

“…g) Areal specific capacity and h) Volumetric specific capacity of ZIDMBs at various current densities. i) The comparison of the areal specific capacity of the constructed ZIDMBs with that of the previously reported aqueous MBs, [15][16][17][19][20][21][22][23][52][53][54][55][56][57] high-performance organic MBs including lithiumion MBs, [12,24,58,59] sodium-ion MBs, [60] and dual-ion MBs, [61] as well as state-of-the-art zinc-ion MSCs [62,63] and lithium-ion MSCs. [64] capacity of 828 and 685 μAh cm −2 (Figure S15, Supporting Information), respectively, which is significantly higher than reported high-performance MBs or ion MSCs.…”

Section: −mentioning

confidence: 99%

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A Flexible Aqueous Zinc–Iodine Microbattery with Unprecedented Energy Density

et al. 2022

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Currently, reported aqueous microbatteries (MBs) only show unsatisfactory electrochemical performance (≤120 mWh cm−3 volumetric energy density and <1000 μWh cm−2 areal energy density) and it remains challenging to develop durable aqueous MBs that can simultaneously offer both high volumetric and areal energy density. Herein, an in situ electrodeposition strategy is adopted to construct a flexible aqueous zinc–iodine MB (ZIDMB). Notably, the fabrication process well avoids the use of common additives (such as binders, conductive agents, and toxic solvent) and also bypasses subsequent time‐consuming procedures such as grinding, coating, drying, etc., thus greatly simplifying the manufacture of the ZIDMB. Meanwhile, owing to the suppression of the shuttle effect of triiodide ions and the high ionic conductivity of the polyelectrolyte, the ZIDMB can simultaneously deliver record‐high volumetric and areal energy densities of 1647.3 mWh cm−3 and 2339.1 μWh cm−2, thus achieving values at least 13.5‐ and 2.3‐fold better than those of best available aqueous MBs, respectively. This work affords an innovative strategy to construct an ideal micro‐power‐source for future miniaturized and integrated electronics.

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Section: −mentioning

confidence: 88%

Section: −mentioning

confidence: 99%

A Flexible Aqueous Zinc–Iodine Microbattery with Unprecedented Energy Density

et al. 2022

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“…As far as MB configuration is concerned, the SEI film or dendrite formation will become more severe for interdigital or similar patterned electrodes with a tip-gathering electrical field. [127] Moreover, as the application scenarios of organic electrolyte shifted to miniaturized construction, the safety issue will be exacerbated due to the smaller distance of microelectrode gap. When merely in terms of the usage, similar to aqueous electrolyte, extreme Reproduced with permission.…”

Section: Organic Electrolytementioning

confidence: 99%

Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Zhu

Kan

et al. 2020

Small

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considered indispensable and stimulate great upsurge in interest on relevant researches. [1-4] Through integrating with multiple functional materials or devices, the miniaturized energy-storage device can power functional systems, such as microactuators, implantable biosensors, and wearable gadgets. [5,6] As far as the performance is concerned, the shift from disposable or nonrechargeable product to a high-energy output device or even complicated system has motivated the improvement of energy storage capability during the past decade. Generally, microsupercapacitor (MSC) possesses the advantages of fast charge/discharge rate and long cycling lifetime, making it possible for some maintenance-free wearable microelectronics and biomedical devices. [7,8] However, the energy storage gap about an order of magnitude still exists in comparison with microbattery (MB), and the insufficient energy supply restricts the widespread applications of MSC in the main power systems. [9] Serving as the primary choice for powering advanced miniaturized devices, MBs ensure sufficient energy density and maintain a stable voltage output. In general, a rechargeable battery consists of cathode, anode, and electrolyte in between, therefore it is the electrode that calls for miniaturization in size ranging from microns to centimeters. The total energy available in a MB generally depends on the active materials loaded on a certain small area. Based on this, some concepts of MB have been proposed, such as ultrathin microelectrode for high volumetric specific energy and somewhat thick microelectrode for high areal specific energy. [10,11] In terms of the dimensional ratio of MB, the thickness of microelectrode gives priority to the transport distance of ions and electrons, thus favoring the improvement in power density when compared with the macro one. [12,13] The decisive factor for the performance of MB is the reaction mechanism, and multiple battery forms have been expanded into miniaturized power supply as the supplement. Among the MBs mainly represented by lithium-ion batteries (LIBs) with organic electrolyte, various alkali metal ion batteries with abundant resources have been explored for possible substitution of lithium. [14-16] From the perspective of intrinsic safety, aqueous batteries have been developed with the merits of both inexpensive electrolyte and relatively higher power density. [17] Additionally, air batteries derived from fuel cells and ideally comprised of infinite O 2 supply for cathode reaction High-performance miniaturized energy storage devices have developed rapidly in recent years. Different from conventional energy storage devices, microbatteries assume the main responsibility for micropower supply, functionalization, and characterization platforms. Evolving from the essential goals for battery design of high power density, high energy density, and long lifetime, further practical demands for microbatteries (MBs) have been raised for the microfabrication technique and device design. Numerous studies have generally...

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“…Besides, some battery systems based on other chemistries (e. g., silverÀ zinc batteries and cobaltÀ zinc batteries) have also been developed as promising power supplies. [69][70][71][72] However, in order to meet future requirements for the energy density as well as economic cost considerations, metalÀ sulfur and metalÀ air batteries are regarded as promising power sources with an energy density higher than 300 Wh kg À 1 . The detailed information of these two kinds of batteries will be discussed in the next section.…”

Section: Energy Densitymentioning

confidence: 99%

Flexible and Wearable Power Sources for Next‐Generation Wearable Electronics

Fan

Liu

Ding

et al. 2020

Batteries & Supercaps

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Personal electronic devices are moving toward an era in pursuit of wearability and versatility enabling a wide range of healthcare, entertainment and sports applications. Conventional power source with bulky and rigid structure becomes a bottleneck for the rapid advancements of wearable smart electronics. To meet the requirement of next-generation wearable electronics, power supplies with high flexibility, bendability, and stretchability have received extensive attention. In this review, requirements of flexible and wearable power sources in terms of the flexible battery configuration design, flexible materials, energy density and other request are highlighted. Several promising power supplies (e. g., metalÀ sulfur batteries, metalÀ air batteries, energy storage and conversion integrated devices) for the application of wearables are discussed in detail. Furthermore, discussions are presented on the remaining challenges and some possible research directions to establish a perspective for practical applications of power sources for wearable electronics in the near future.

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Wearable Textile‐Based Co−Zn Alkaline Microbattery with High Energy Density and Excellent Reliability

Cited by 54 publications

References 42 publications

A Flexible Aqueous Zinc–Iodine Microbattery with Unprecedented Energy Density

A Flexible Aqueous Zinc–Iodine Microbattery with Unprecedented Energy Density

Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Flexible and Wearable Power Sources for Next‐Generation Wearable Electronics

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