scholarly journals Hierarchical Ni(OH)2/Cu(OH)2 interwoven nanosheets in situ grown on Ni–Cu–P alloy plated cotton fabric for flexible high-performance energy storage

2020 ◽  
Vol 2 (8) ◽  
pp. 3358-3366
Author(s):  
Man Zhou ◽  
Zhihang Jin ◽  
Lifang Su ◽  
Kai Li ◽  
Hong Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cotton Fabric ◽  
High Performance ◽  
Mechanical Performance ◽  
Electronic Devices ◽  
High Conductivity ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Flexible Ni(OH)2/Cu(OH)2@Ni–Cu–P alloy coated on cotton fabric with high conductivity and excellent mechanical performance is available for future smart and wearable electronic devices.

Rationally designed Hierarchical C/TiO2/Ti multilayer Core-sheath Wires for High-performance Energy Storage Devices

Nanoscale ◽  
2021 ◽  
Author(s):  
Wei Cao ◽  
Yun Gong ◽  
Wenhao Wang ◽  
Mingzhou Chen ◽  
Junhe Yang ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Electronic Devices ◽  
Energy Storage Devices ◽  
Power Sources ◽  
Storage Devices ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Fiber-shaped supercapacitors (FSCs) are promising power sources for wearable electronic devices due to their small size, excellent flexibility and deformability. The performance of FSCs has been severely affected by the...

Nature-inspired hierarchical materials for sensing and energy storage applications

2021 ◽  
Author(s):  
Chunping Xu ◽  
Alain R. Puente-Santiago ◽  
Daily Rodríguez-Padrón ◽  
Mario J. Muñoz-Batista ◽  
Md Ariful Ahsan ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Materials Science ◽  
Electronic Devices ◽  
Hierarchical Materials ◽  
Science Community ◽  
Wearable Electronic ◽  
Hierarchical Architectures ◽  
Energy Storage Applications ◽  
Wearable Electronic Devices

Nature-inspired hierarchical architectures have recently drawn enormous interest in the materials science community, being considered as promising materials for the development of high-performance wearable electronic devices.

scholarly journals Multilayer supercapacitor threads for woven flexible circuits

Circuit World ◽  
2015 ◽  
Vol 41 (4) ◽  
pp. 154-160
Author(s):  
Fulian Qiu ◽  
David Harrison
Keyword(s):  
Energy Storage ◽  
Electronic Devices ◽  
Dip Coating ◽  
Gel Electrolyte ◽  
Content Type ◽  
Storage Devices ◽  
Single Thread ◽  
Wearable Electronic ◽  
Pva Gel ◽  
Wearable Electronic Devices

Purpose – Wearable electronic devices have emerged which require compact, flexible power storage devices such as batteries and supercapacitors. Recently, energy storage devices have been developed based on supercapacitor threads. However, current supercapacitor energy storage threads which use electrolytes based on aqueous gels have a 1 V potential window. This is much lower than the voltage required by most electronic devices. This current contribution presents an approach for fabricating a multilayer supercapacitor working as a circuit unit, in which series combinations of the multiple layer structures can achieve a higher potential window, which can better meet the needs of wearable electronic devices. Design/methodology/approach – Two-capacitive layer thread supercapacitors were fabricated using a semi-automatic dip coating method by coating two capacitive layers sequentially on a 50 μm stainless steel core wire, each capacitive layer includes ink, aqueous-based gel electrolyte and silver conductive paint layers. Findings – Two capacitive layers of the single thread supercapacitor can work independently, or as combination circuits – parallel and series. Cyclic voltammograms showed that all flexible circuits have high electrochemical stability. For the case of series circuit configuration, with H3PO-polyvinyl alcohol (PVA) gel electrolyte, a working potential window of 2 V was achieved. Originality/value – A flexible single thread supercapacitor of multilayer structure, with working voltage above 1 V in H3PO4-PVA gel electrolyte, has not been reported before. A semi-automatic dip coating setup used to process the thread supercapacitor has high potential for transfer to an industrial environment for mass production.

Highly Porous Mn3O4 Nanosheets with in-situ Coated Carbon Enabling Fully Screen-Printed Planar Supercapacitors with Remarkable Volumetric Performance

2021 ◽  
Author(s):  
Zhongyou Peng ◽  
Jun Huang ◽  
Qichang He ◽  
Licheng Tan ◽  
Yiwang Chen
Keyword(s):  
Energy Density ◽  
Manganese Oxides ◽  
Electronic Devices ◽  
Wearable Electronic ◽  
Wearable Electronic Devices ◽  
Coated Carbon ◽  
Highly Porous ◽  
Screen Printed

The most reported planar supercapacitors (PSCs) still suffer from inferior areal/volumetric energy density, and inefficient patterning techniques unsatisfactory to meet the requires of wearable electronic devices. Manganese oxides have attracted...

Ionic liquid electrodeposition of Ge nanostructures on freestanding Ni-nanocone arrays for Li-ion battery

RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19596-19600 ◽  
Author(s):  
Jian Hao ◽  
Xin Liu ◽  
Xusong Liu ◽  
Xiaoxu Liu ◽  
Na Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance ◽  
Electronic Devices ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Wearable Electronic ◽  
Li Ion ◽  
Wearable Electronic Devices

With the growing demand for portable and wearable electronic devices, it is imperative to develop high-performance Li-ion batteries with long lifetimes.

Characteristics of Discharge Currents Measured through Body-Attached Metal for Modeling ESD from Wearable Electronic Devices

2016 ◽  
Vol E99.B (1) ◽  
pp. 186-191 ◽  
Author(s):  
Takeshi ISHIDA ◽  
Fengchao XIAO ◽  
Yoshio KAMI ◽  
Osamu FUJIWARA ◽  
Shuichi NITTA
Keyword(s):  
Electronic Devices ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

scholarly journals Recent Progress of Fluxgate Magnetic Sensors: Basic Research and Application

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1500
Author(s):  
Songrui Wei ◽  
Xiaoqi Liao ◽  
Han Zhang ◽  
Jianhua Pang ◽  
Yan Zhou
Keyword(s):  
Recent Progress ◽  
Electronic Devices ◽  
Basic Research ◽  
Research Direction ◽  
Magnetic Sensor ◽  
Magnetic Sensors ◽  
Future Research ◽  
Calibration Methods ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Fluxgate magnetic sensors are especially important in detecting weak magnetic fields. The mechanism of a fluxgate magnetic sensor is based on Faraday’s law of electromagnetic induction. The structure of a fluxgate magnetic sensor mainly consists of excitation windings, core and sensing windings, similar to the structure of a transformer. To date, they have been applied to many fields such as geophysics and astro-observations, wearable electronic devices and non-destructive testing. In this review, we report the recent progress in both the basic research and applications of fluxgate magnetic sensors, especially in the past two years. Regarding the basic research, we focus on the progress in lowering the noise, better calibration methods and increasing the sensitivity. Concerning applications, we introduce recent work about fluxgate magnetometers on spacecraft, unmanned aerial vehicles, wearable electronic devices and defect detection in coiled tubing. Based on the above work, we hope that we can have a clearer prospect about the future research direction of fluxgate magnetic sensor.

scholarly journals A thin, deformable, high-performance supercapacitor implant that can be biodegraded and bioabsorbed within an animal body

2021 ◽  
Vol 7 (2) ◽  
pp. eabe3097
Author(s):  
Hongwei Sheng ◽  
Jingjing Zhou ◽  
Bo Li ◽  
Yuhang He ◽  
Xuetao Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Electronic Devices ◽  
Form Factors ◽  
Time Frame ◽  
Water Soluble ◽  
Two Dimensional ◽  
Medical Electronics ◽  
Thin Structure ◽  
Shed Light

It has been an outstanding challenge to achieve implantable energy modules that are mechanically soft (compatible with soft organs and tissues), have compact form factors, and are biodegradable (present for a desired time frame to power biodegradable, implantable medical electronics). Here, we present a fully biodegradable and bioabsorbable high-performance supercapacitor implant, which is lightweight and has a thin structure, mechanical flexibility, tunable degradation duration, and biocompatibility. The supercapacitor with a high areal capacitance (112.5 mF cm−2 at 1 mA cm−2) and energy density (15.64 μWh cm−2) uses two-dimensional, amorphous molybdenum oxide (MoOx) flakes as electrodes, which are grown in situ on water-soluble Mo foil using a green electrochemical strategy. Biodegradation behaviors and biocompatibility of the associated materials and the supercapacitor implant are systematically studied. Demonstrations of a supercapacitor implant that powers several electronic devices and that is completely degraded after implantation and absorbed in rat body shed light on its potential uses.

scholarly journals Ultrathin, Lightweight, and Flexible CNT Buckypaper Enhanced Using MXenes for Electromagnetic Interference Shielding

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Rongliang Yang ◽  
Xuchun Gui ◽  
Li Yao ◽  
Qingmei Hu ◽  
Leilei Yang ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
High Performance ◽  
Electronic Devices ◽  
Deposition Process ◽  
Shielding Effectiveness ◽  
Emi Shielding ◽  
Emi Shielding Effectiveness ◽  
X Band ◽  
Wearable Electronic Devices ◽  
Emi Se

AbstractLightweight, flexibility, and low thickness are urgent requirements for next-generation high-performance electromagnetic interference (EMI) shielding materials for catering to the demand for smart and wearable electronic devices. Although several efforts have focused on constructing porous and flexible conductive films or aerogels, few studies have achieved a balance in terms of density, thickness, flexibility, and EMI shielding effectiveness (SE). Herein, an ultrathin, lightweight, and flexible carbon nanotube (CNT) buckypaper enhanced using MXenes (Ti3C2Tx) for high-performance EMI shielding is synthesized through a facile electrophoretic deposition process. The obtained Ti3C2Tx@CNT hybrid buckypaper exhibits an outstanding EMI SE of 60.5 dB in the X-band at 100 μm. The hybrid buckypaper with an MXene content of 49.4 wt% exhibits an EMI SE of 50.4 dB in the X-band with a thickness of only 15 μm, which is 105% higher than that of pristine CNT buckypaper. Furthermore, an average specific SE value of 5.7 × 104 dB cm2 g−1 is exhibited in the 5-μm hybrid buckypaper. Thus, this assembly process proves promising for the construction of ultrathin, flexible, and high-performance EMI shielding films for application in electronic devices and wireless communications.

Engineering flexible carbon nanofibers concatenated MOFs-derived hollow octahedral CoFe2O4 as anode materials for enhanced lithium storage

2021 ◽  
Author(s):  
Fangfang Xue ◽  
Yangyang Li ◽  
Chen Liu ◽  
Zhigang Zhang ◽  
Jun Lin ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Anode Materials ◽  
Electrode Materials ◽  
Electronic Devices ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Excellent Mechanical Property ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Constructing suitable electrode materials with high capacity and excellent mechanical property is indispensable for flexible lithium-ion batteries (LIBs) to satisfy the growing flexible and wearable electronic devices. Herein, a necklace-like...

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