Categorizing wearable batteries: Unidirectional and omnidirectional deformable batteries

Yang, Qi; Chen, Ao; Li, Chuan; Zou, Gangsheng; Li, Hongfei; Chen, Zhi

doi:10.1016/j.matt.2021.07.016

Cited by 50 publications

(28 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wearables that require long-term operation and a high energy density to power multiplexed sensors and other components can incorporate an energy storage element 209 . To this end, low-cost, comfortable and safe batteries or supercapacitors that are deformable are highly desired.…”

Section: Assembling Wearable Devicesmentioning

confidence: 99%

End-to-end design of wearable sensors

et al. 2022

View full text Add to dashboard Cite

Wearable devices provide an alternative pathway to clinical diagnostics by exploiting various physical, chemical and biological sensors to mine physiological (biophysical and/or biochemical) information in real time (preferably, continuously) and in a non-invasive or minimally invasive manner. These sensors can be worn in the form of glasses, jewellery, face masks, wristwatches, fitness bands, tattoo-like devices, bandages or other patches, and textiles. Wearables such as smartwatches have already proved their capability for the early detection and monitoring of the progression and treatment of various diseases, such as COVID-19 and Parkinson disease, through biophysical signals. Next-generation wearable sensors that enable the multimodal and/or multiplexed measurement of physical parameters and biochemical markers in real time and continuously could be a transformative technology for diagnostics, allowing for high-resolution and time-resolved historical recording of the health status of an individual. In this Review, we examine the building blocks of such wearable sensors, including the substrate materials, sensing mechanisms, power modules and decision-making units, by reflecting on the recent developments in the materials, engineering and data science of these components. Finally, we synthesize current trends in the field to provide predictions for the future trajectory of wearable sensors.

show abstract

Section: Assembling Wearable Devicesmentioning

confidence: 99%

End-to-end design of wearable sensors

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Subsequently, pillared Ti 3 C 2 was applied as a cathode material for ZIC, and kinetic studies were explored through ex-situ Raman spectroscopy as displayed in figure 4(a). It revealed that Ti 3 C 2 store zinc ions through an intercalation pseudocapacitive process with the surficial oxygen terminations surviving as the binding sites for zinc ions [47,48]. Considering that the MXene nanosheets are prone to aggregating and restacking due to the interlayer van der Waals interaction, rGO aerogels were introduced as a framework to inhibit the stacking of MXene and construct MXene-rGO aerogels [49].…”

Section: Two-dimensional Layered Materialsmentioning

confidence: 99%

Recent advances and future perspectives for aqueous zinc-ion capacitors

et al. 2022

Self Cite

View full text Add to dashboard Cite

The ion hybrid capacitor is expected to combine the high specific energy of battery-type materials and the superior specific power of capacitor-type materials, being considered as a promising energy storage technique. Particularly, the aqueous zinc-ion capacitors (ZIC) possessing merits of high safety, cost-efficiency and eco-friendliness, have been widely explored with various electrode materials and electrolytes to obtain excellent electrochemical performance. In this review, we first summarized the research progress on enhancing the specific capacitance of capacitor-type materials and reviewed the research on improving the cycling capability of battery-type materials under high current densities. Then, we looked back on the effects of electrolyte engineering on the electrochemical performance of ZIC. Finally, the research challenges and development directions of ZIC have been proposed. This review provides a guidance for the design and construction of the high-performance ZIC.

show abstract

“…In contrast to planar flexible batteries, fiber electrodes are of vital importance in determining energy storage performance and flexibility of the final fibrous ZIB. [ 5 ] Generally, fiber electrode fabrication strategies can be classified into two categories: i) surface coating/in situ growth that deposits active materials onto conductive fiber substrates [ 6 ] and ii) wet‐spinning via incorporating target materials [ 7 ] (e.g., conducting polymers or metal oxides) with carbon‐based nanomaterials (e.g., graphene or CNTs). Although surface‐coating/in situ growth are feasible approaches to construct fiber electrodes through dip‐coating or electrochemical deposition, the thus‐fabricated electrodes so far only show limited active material loading and inadequate interfacial adhesion, which tends to create detrimental cracks or even severe abscission after repeated configuration deformation (e.g., bending, twisting, and stretching).…”

Section: Introductionmentioning

confidence: 99%

Manipulating Hierarchical Orientation of Wet‐Spun Hybrid Fibers via Rheological Engineering for Zn‐Ion Fiber Batteries

Zhou

et al. 2022

Advanced Materials

View full text Add to dashboard Cite

receiving great attention for serving as power source of wearable electronics. [1] 1D fiber batteries can be directly woven into commercial textiles to solve energy anxiety. [2] Zn-ion aqueous batteries (ZIB) are an ideal electrochemical charge storage system for constructing fiber batteries, owing to their inherent safety, efficient Zn-ion transport dynamics, low cost (≈$ 65 kW −1 h vs ≈$ 300 kW −1 h for Li-ion battery), facile fabrication, and excellent volumetric capacity (5855 vs 2061 mAh cm −3 for Li) of the Zn metal anode. [3] These features have stimulated emerging research interests in developing Zn-ion fiber batteries. [4] For instance, Zhi et al. fabricated a Zn-ion fiber battery with α-MnO 2 as the cathode and Zn metal decorating two double helix carbon nanotube (CNT) fibers as the anode, in which a ZIB yarn woven into textile was demonstrated. However, in comparison with thin-film counterparts, the limited specific capacity of 302.1 mAh g −1 and volumetric energy density of 53.8 mWh cm −3 still hinder its broad application in providing long-term power for wearable electronics due to the insufficient active materials loading via the dip-coating strategy. [4c] In contrast to planar flexible batteries, fiber electrodes are of vital importance in determining energy storage performance and flexibility of the final fibrous ZIB. [5] Generally, fiber electrode fabrication strategies can be classified into two categories: i) surface coating/in situ growth that deposits active materials onto conductive fiber substrates [6] and ii) wet-spinning via incorporating target materials [7] (e.g., conducting polymers or metal oxides) with carbon-based nanomaterials (e.g., graphene or CNTs). Although surface-coating/in situ growth are feasible approaches to construct fiber electrodes through dip-coating or electrochemical deposition, the thus-fabricated electrodes so far only show limited active material loading and inadequate interfacial adhesion, which tends to create detrimental cracks or even severe abscission after repeated configuration deformation (e.g., bending, twisting, and stretching). These drawbacks significantly constrain the initial specific capacity, mechanical durability and long-term electrochemical stability. [8] Among the prevailing strategies, wet-spinning has been affirmed as a fascinating approach to surmount the aforementioned issues encountered with surface coated fiber electrodes. [9] Wet-spinning is a promising strategy to fabricate fiber electrodes for real commercial fiber battery applications, according to its great compatibility with large-scale fiber production. However, engineering the rheological properties of the electrochemical active materials to accommodate the viscoelasticity or liquid crystalline requirements for continuous wet-spinning remains a daunting challenge. Here, with entropy-driven volume-exclusion effects, the rheological behavior of vanadium pentoxide (V 2 O 5 ) nanowire dispersions is regulated through introducing 2D graphene oxide (GO) flakes in an optim...

show abstract

Categorizing wearable batteries: Unidirectional and omnidirectional deformable batteries

Cited by 50 publications

References 65 publications

End-to-end design of wearable sensors

End-to-end design of wearable sensors

Recent advances and future perspectives for aqueous zinc-ion capacitors

Manipulating Hierarchical Orientation of Wet‐Spun Hybrid Fibers via Rheological Engineering for Zn‐Ion Fiber Batteries

Contact Info

Product

Resources

About