Superstretchable, thermostable and ultrahigh-loading lithium–sulfur batteries based on nanostructural gel cathodes and gel electrolytes

Quick progress in the field of smart wearable devices requires self-sustainable power systems to help the devices execute the desired functions within a sufficient time scale. Because these devices have started to become small, light, compliant, complex, and multifunctional, it is challenging to provide them with the large amounts of energy necessary for their operation. Thus, future multifunctional wearable devices should not only incorporate mechanical flexibility for conformal contacts but also include sustainable energy units for stable operation. Hence, strategies for designing the assembly of nanoscale materials in macroscale-structured devices have attracted intense interest, with an aim to achieve mechanically deformable and sustainable wearable devices while exploiting the recent advances in nanomaterials and device fabrication. This review highlights the recent progress in nanomaterialenabled and structured energy harvesting, energy storage, and hybrid devices for powering sustainable wearables. In particular, one summarizes describe biomechanical energy harvesters (piezoelectric nanogenerators and triboelectric nanogenerators), solar energy harvesters (solar cells), biothermal energy harvesters (thermoelectric nanogenerators), energy storage devices (batteries and supercapacitors), and hybrid devices and focus on the use of nanomaterials and device configurations in 1D, 2D, and 3D structures, with an aim to shape the future demand for self-sustainable wearables.

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Section: Wearable Energy Storage Devicesmentioning

confidence: 99%

“…a) Schematic images of a stretchable 2D Li-S battery (Li anode and Co@NCNP/NCNT cathode).The right part of illustration represents fabrication process of Co@NCNP/NCNT cathode via phase inversion for high-sulfur loading. Reproduced with permission [213]. Copyright 2020, Elsevier.…”

mentioning

confidence: 99%

Recent Advances in Sustainable Wearable Energy Devices with Nanoscale Materials and Macroscale Structures

Kim

Pyun

Lee

et al. 2021

Adv Funct Materials

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“…The resulting flexible 1D LiMn 2 O 4 -nanocarbon hybrid showed a capacity of 2.01 mAh cm −2 and a mass loading of 17.7 mg cm −2 . Highly stretchable batteries were also reported, using zig-zag interconnects with gel cathodes and electrolytes [176]. The lithium-sulphur battery was stretched up to 420% and delivered an aerial capacity of 11.0 mAh cm −2 at a mass loading of 14 mg cm −2 .…”

Section: Power Management Approachesmentioning

confidence: 99%

E-Skin: The Dawn of a New Era of On-Body Monitoring Systems

et al. 2021

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Real-time “on-body” monitoring of human physiological signals through wearable systems developed on flexible substrates (e-skin) is the next target in human health control and prevention, while an alternative to bulky diagnostic devices routinely used in clinics. The present work summarizes the recent trends in the development of e-skin systems. Firstly, we revised the material development for e-skin systems. Secondly, aspects related to fabrication techniques were presented. Next, the main applications of e-skin systems in monitoring, such as temperature, pulse, and other bio-electric signals related to health status, were analyzed. Finally, aspects regarding the power supply and signal processing were discussed. The special features of e-skin as identified contribute clearly to the developing potential as in situ diagnostic tool for further implementation in clinical practice at patient personal levels.

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“…To reach a S-loading of about 14 mg cm À2 , a state-of-the art design of a highly elastic 3D-gel cathode was developed, which comprised an interconnected co-polymer skeleton (achieved through phase inversion strategy). 194 The phase inversion strategy is a well-known universal technique for constructing a porous interconnected-polymeric network, and it can open up new pathways for the matrix to accommodate a high sulfur loading. 195 During this process, three continuous phases merge, i.e., the S/C composite, the pores phase and a polymeric phase are formed in one-pot simultaneously, leading to the development of an electronically conductive scaffold to promote conductive pathways.…”

Section: Review Materials Advancesmentioning

confidence: 99%

Unveiling the physiochemical aspects of the matrix in improving sulfur-loading for room-temperature sodium–sulfur batteries

et al. 2021

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Superstretchable, thermostable and ultrahigh-loading lithium–sulfur batteries based on nanostructural gel cathodes and gel electrolytes

Cited by 56 publications

References 49 publications

Recent Advances in Sustainable Wearable Energy Devices with Nanoscale Materials and Macroscale Structures

Recent Advances in Sustainable Wearable Energy Devices with Nanoscale Materials and Macroscale Structures

E-Skin: The Dawn of a New Era of On-Body Monitoring Systems

Unveiling the physiochemical aspects of the matrix in improving sulfur-loading for room-temperature sodium–sulfur batteries

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