A moisture induced self-charging device for energy harvesting and storage
Using moisture to drive electrolyte diffusion/microfluid is a promising strategy to harvest energy from environment. This idea has been realized in this work by fabricating a novel moisture induced self-charging device (MISD). The compact MISD only consists of two CNT electrodes bridged by HCl/polyvinyl alcohol (PVA) gel.
Towards sustainable and versatile energy storage devices: an overview of organic electrode materials
As an alternative to conventional inorganic intercalation electrode materials, organic electrode materials are promising candidates for the next generation of sustainable and versatile energy storage devices. In this paper we provide an overview of organic electrode materials, including their fundamental knowledge, development history and
Carbon nanotubes: A potential material for energy conversion and storage
Carbon nanotube-based materials are gaining considerable attention as novel materials for renewable energy conversion and storage. The novel optoelectronic properties of CNTs (e.g., exceptionally high surface area, thermal conductivity, electron mobility, and mechanical strength) can be advantageous for applications toward energy
The new focus of energy storage: flexible wearable
As the demand for flexible wearable electronic devices increases, the development of light, thin and flexible high-performance energy-storage devices to power them is a research priority. This review highlights the latest research advances in flexible wearable supercapacitors, covering functional classifications such as stretchability,
Machine learning toward advanced energy storage devices and
Technology advancement demands energy storage devices (ESD) and systems (ESS) with better performance, longer life, higher reliability, and smarter management strategy. Designing such systems involve a trade-off among a large set of parameters, whereas advanced control strategies need to rely on the instantaneous
Normal or abnormal? Machine learning for the leakage detection in carbon sequestration projects using pressure field
The key to any successful CCS project lies in the long term storage and prevention of leakage of stored carbon dioxide (CO 2). In addition to being a greenhouse gas, CO 2 leaks reaching the surface can accumulate in low-lying areas resulting in a serious health risk.
Advances in thermal energy storage: Fundamentals and
Hence, researchers introduced energy storage systems which operate during the peak energy harvesting time and deliver the stored energy during the high-demand hours. Large-scale applications such as power plants, geothermal energy units, nuclear plants, smart textiles, buildings, the food industry, and solar energy capture and
Excellent high-temperature dielectric energy storage of flexible all
These excellent dielectric energy storage performances benefit from the introduction of molecular trapping centers which notably reduce the high-temperature
Energy storage
Energy storage is the capture of energy produced at one time for use at a later time [1] to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential
Lithium ion battery energy storage systems (BESS) hazards
Here, the unique hazard of the BESS is the electrical and chemical energy contained within the batteries themselves. Rapid and uncontrolled release of this energy may occur if the battery undergoes thermal runaway. Hence, the top event in the BESS bowtie analysis is thermal runaway.
A review of self-healing electrolyte and their applications in flexible/stretchable energy storage devices
The two primary energy storage technologies are supercapacitors and metal-ion batteries, both of which are widely utilized as energy supply devices in flexible/stretchable electronics [42, 43]. Fig. 2 schematically illustrated the operation of two mainstream energy storage devices.
Failure analysis on abnormal leakage of radiator for high-speed train transformer
Highlights. •. The root cause of abnormal and premature leakage of the radiator of high-speed train transformer was comprehensively studied. •. Chloride and sulfide induced pitting corrosion due to accumulation of dust and acid rain from environment was found to be main failure mechanism. •.
Distributed secure sampled-data control for distributed generators and energy storage systems in microgrids under abnormal
Introduction The microgrid is composed of physical-coupled electric system including distributed power sources (DPSs), energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc and cyber-coupled communication system [1
Reduced leakage current and enhanced energy storage performance of BZNT/BTO multilayer structures: Implications in electronic devices
The extremely high recoverable energy density (W rec) and efficiency (η) of lead-free thin films make them a promising candidate for application in miniature power devices.Here, a stable design of multilayered structures of BaTiO 3 (BTO) and Bi[Zn 2/3 (Nb 0.85 Ta 0.15) 1/3]O 3 (BZNT) have been fabricated using the pulsed laser deposition
Research progress of lossless and safe storage technology for cryogenic liquid tanks: International Journal of Green Energy
The different thermodynamic models for predicting the lossless storage time of cryogenic liquid tanks were summarized and appraised. On this basis, the key problems to be solved in the development of lossless storage technology for cryogenic liquid tanks are pointed out, which provides a reference for further research of lossless
Recent advances in flexible/stretchable batteries and integrated devices
Abstract. In recent years, flexible/stretchable batteries have gained considerable attention as advanced power sources for the rapidly developing wearable devices. In this article, we present a critical and timely review on recent advances in the development of flexible/stretchable batteries and the associated integrated devices.
Abnormal leakage of energy in battery-based IoT-devices
Minor energy leakage can significantly impact device lifetime. A key challenge is to secure IoT devices from battery exhaustion exploits. In this paper we propose a battery exhaustion exploit that performs anomalous drainage of battery energy by exploiting Resource Observation feature of Constrained Application Protocol (CoAP), an
A review of energy storage types, applications and recent
Most energy storage technologies are considered, including electrochemical and battery energy storage, thermal energy storage, thermochemical energy storage, flywheel energy storage, compressed air energy storage, pumped energy storage, magnetic energy storage, chemical and hydrogen energy storage.
The role of graphene for electrochemical energy storage
Rare Metals (2024) Graphene is potentially attractive for electrochemical energy storage devices but whether it will lead to real technological progress is still unclear. Recent applications of
An energy and leakage current monitoring system for abnormality
This hidden danger can be effectively eliminated by quickly detecting the causes of faults in appliances through continuous motoring and warning systems. A
Scalable fabrication of high-power graphene micro-supercapacitors for flexible and on-chip energy storage
Microscale supercapacitors are promising alternative energy-storage devices; however, their use has been limited by the need for complicated fabrication techniques. This work reports the scalable
An energy and leakage current monitoring system for
A residual-current device (RCD) that activates depending on a specified threshold is a common and popular device for determining leakage current.
Leakage-Limitation Engineering Derived from an Interfacial
Abstract. For dielectric energy storage films, high leakage current always results in larger loss of energy, heating breakdown, and poor stability. This work designs
Characteristic leakage current of household devices and their impact on the tripping behaviour of residual current devices
The traditional leakage protection devices applied in TN-S systems cannot isolate single-phase leakage faults while maintaining power supply. Thus, a leakage protection method based on flexible regulation of the neutral point voltage for a low-voltage power supply system is proposed.
Shape-stabilized phase change materials based on porous supports for thermal energy storage applications
Latent heat thermal energy storage (TES) effectively reduces the mismatch between energy supply and demand of renewable energy sources by the utilization of phase change materials (PCMs). However, the low thermal conductivity and poor shape stability are the main drawbacks in realizing the large-scale application of
Failure analysis on abnormal leakage of TP321 stainless steel pipe in hydrogen-eliminated system of nuclear
In this paper, the abnormal leakage failure of the TP321 stainless steel pipe that conveyed medium temperature shifting gas in a petrochemical factory was systematically studied. In order to find out the causes of the failure, the operating conditions, the material qualities of the failed pipe, the macroscopic and microscopic morphologies of
Phase change composites based on double-shell microcapsules with high latent heat and low leakage rate for thermal energy storage
The results showed that the enthalpy and leakage rate of Pn@PMMA@SiO 2 with 10 wt% PMMA were 156.6 J/g and 1.85 %, which displayed outstanding latent heat storage/release capability and good anti-permeable property.
Failure analysis on abnormal leakage of TP321 stainless steel
In this paper, the abnormal leakage failure of the TP321 stainless steel pipe that conveyed medium temperature shifting gas in a petrochemical factory was systematically studied. In order to find out the causes of the failure, the operating conditions, the material qualities of the failed pipe, the macroscopic and microscopic morphologies of
An overall safety concept for nuclear power plants
There is no consensus yet about the definition of an overall safety concept. Instead, a wealth of safety principles exists in the nuclear field, such as the principles of defence-in-depth, safety culture, and resilience. Methods, such as deterministic safety analyses, probabilistic risk (or safety) analyses, and failure and effect mode analyses
Energy storage: The future enabled by nanomaterials | Science
Lithium-ion batteries, which power portable electronics, electric vehicles, and stationary storage, have been recognized with the 2019 Nobel Prize in chemistry. The development of nanomaterials and their related processing into electrodes and devices can improve the performance and/or development of the existing energy storage systems.
Self-discharge in rechargeable electrochemical energy storage
Self-discharge is one of the limiting factors of energy storage devices, adversely affecting their electrochemical performances. A comprehensive understanding
Gel Polymer Electrolytes for Electrochemical Energy Storage
Compared with traditional liquid electrolytes, gel polymer electrolytes (GPEs) are preferred due to their higher safety and adaptability to the design of flexible energy storage devices. This review summarizes the recent progress of GPEs with enhanced physicochemical properties and specified functionalities for the application in
A failure mechanism and improved method for abnormal IDS
In this paper, a new failure mechanism of high I DS leakage current on SGT-30V product was proposed. Abnormal I DS leakage current was directly linked to excessive accumulation of fluorine in the part of top wafer not shielded by the cassette
Failure mechanism analysis of off-state drain-to-source leakage
In the process of investigation, a IDSS failure risk factor that can be induced from complete delamination of solder layer connecting source to Si-substrate is identified and a solution to remedy this is suggested. From the IDSS leakage localisation analysis, it was revealed that the main leakage current path is drain-to-source, not
