An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
batteries, etc ; Internet; aquaculture; dissolved oxygen; electric power; energy; hydrogen; salinity; solar energy; temperature; turbidity; water quality; Thailand; Show all 13 Subjects
Abstract:
... This study presents a standalone photovoltaic (PV)/battery energy storage (BES)-powered water quality monitoring system based on the narrowband internet of things (NB-IoT) for aquaculture. (1) A PV/BES system was used as the main energy system of the monitoring system. The PV and BES capacities were optimized to provide uninterrupted electrical energy to the monitoring system, taking into account ...
... Island Microgrids can coordinate local energy resources, provide post-fault reliability improvements for local customers, and aggregate local power and energy resources to offer services to the wider system. A crucial component of an Island Microgrid is the battery energy storage system, which can manage local imbalances, alleviate constraints, and improve reliability by enabling post-fault island ...
... Na₃V₂(PO₄)₃ (NVP) has been widely adopted as cathode in sodium ion battery devices. Nevertheless, the weak intrinsic conductivity and serious structural collapse limit the further development. Herein, a simultaneous modified strategy of doping K/Co and integrating carbon quantum dots (CQD) is proposed. Substituting K⁺ is beneficial to afford amount of Na⁺ transport within the stabled and expanded ...
... The internal resistance of a battery represents the losses due to heat generation during energy conversion. The state-of-health is used to quantify the increase (degradation) of resistance with usage. However, the current state-of-health analysis merges the total internal resistance into one component. Consequently, the underlying cause of resistance degradation is not understood leading to incorr ...
batteries, etc ; cathodes; electrochemistry; electrolytes; Show all 4 Subjects
Abstract:
... A novel “water in salt” electrolyte is reported for the design of a rocking-chair proton battery. In 20 M ZnCl₂ + 1 M HCl electrolyte, the electrochemical proton storage performance using MoO₃ is significantly improved. When coupled with a Ni-PBA cathode, the device exhibits a good cycling stability of 76.1% after 400 cycles. This work opens a new avenue for designing low-cost “water in salt” elec ...
batteries, etc ; algorithms; electric potential difference; Show all 3 Subjects
Abstract:
... LiFePO₄ batteries are widely used in electric vehicles (EVs) and battery energy storage systems (BESSs). However, the consistencies in capacity, internal resistance, and open circuit voltage (OCV) limit the battery pack performance, which makes it difficult to evaluate the state information of the cells effectively without disassembling the pack. Therefore, this paper proposes a battery capacity a ...
lithium batteries, etc ; adsorption; graphene; slurries; Show all 4 Subjects
Abstract:
... The performance of lithium-ion battery electrodes is influenced by particle dispersion in the slurry used for their production. In this study, we elucidate the effects and mechanism of the binder mixing sequence on the characteristics of the slurry used in the production of negative electrodes. Therefore, we optimize the preparation of the negative electrode slurry by evaluating the electrode char ...
... In this study, we explore how the energy and capacity values of coupled systems comprising solar photovoltaic arrays and battery storage (PV-plus-battery systems) could evolve over time based on the evolution of the bulk power system. Using a price-taker model with simulated hourly energy and capacity prices projected from the present to 2050, we simulate the revenue-maximizing dispatch of a range ...
... Battery storage can provide a wide range of services in power systems. This paper focuses on battery storage co-locating with a hybrid wind and solar system to achieve forecasting error compensation and renewable energy firming. Multiple forecasting error processing techniques are presented, including the exclusion of seasonal frequency components, along with scaling and shifting methods to remove ...
... How to efficiently transmit power and reuse/recover energy has been the subjects of heated discussion in the high-power transmission field. Regarding heavy-duty vehicles, they used to be equipped with a gearbox as a typical type of high-power transmission to deliver power to the wheel. However, a gearbox transmission has quite complex mechanical structure for realizing a large speed-regulating ran ...
batteries, etc ; anodes; electrochemistry; energy; graphene; Show all 5 Subjects
Abstract:
... The feasibility of reversible alloying of Na with Si has led to Si being considered as a potential anode material for the upcoming Na-ion battery system. However, Si exhibits useful Na-storage capacity and associated electrochemical cyclic stability only in the presence of graphene-based interlayers/additives. Despite this, no knowledge exists concerning the characteristics/phenomena at the Si/gra ...
... Serious performance loss of lithium-ion batteries at subzero temperatures is the major obstacle to promoting battery system in cold regions. This paper proposes a novel heating strategy to heat battery from extremely cold temperatures based on a battery-powered external heating structure. The strategy contains two stages: preheating process for battery cold-start, and temperature holding process f ...
batteries, etc ; electrochemistry; electrolytes; hydrogels; polyacrylic acid; Show all 5 Subjects
Abstract:
... Herein, a brand-new dual-electrolyte consisting of porous polyacrylic acid (PAA) hydrogel and 4 M KOH aqueous electrolyte is put forward. The Al–air battery with this dual-electrolyte demonstrates well-suppressed self-corrosion and enhanced electrochemical performance. ...
... In this study, rule-based energy management strategies (EMS) based on the modifications of the traditional load following (LF) and circuit charging (CC) have been proposed and developed to effectively coordinate the operation of an integrated multi-carrier hybrid energy system. The proposed EMS aim to overcome some of the challenges of the traditional rule-based EMS and broaden their application t ...
batteries, etc ; algorithms; energy; models; storage technology; Show all 5 Subjects
Abstract:
... In the recent years, the vehicle-to-grid (V2G) technology has been successfully implemented to stabilize the frequency deviations in a microgrid (MG) whereby charging/discharging of battery of electric vehicles (EVs) is utilized depending upon their state-of-charge (SoC). Compared to the conventional battery energy storage technology, lower degradation tendency and lesser cost of an EV battery are ...
batteries, etc ; electric potential difference; models; temperature; Show all 4 Subjects
Abstract:
... Battery management systems (BMSs) are very important to ensure the safety of electric vehicles. The normal operation of BMSs is highly dependent on the accuracy of battery sensors. The present fault diagnosis efficiency of current sensors is much lower than that of voltage sensors due to model limitations in conventional methods. In this paper, a fault diagnosis method based on an improved model w ...
batteries, etc ; durability; electrodes; electrolytes; energy; lithium; Show all 6 Subjects
Abstract:
... Fast charging of electric vehicles is becoming more and more important for achieving customer acceptance of electromobility. During fast charging, the maximum charging rate of the lithium-ion cells used in the traction batteries of electric vehicles has to be controlled properly to avoid the deposition of metallic lithium on the surface of the negative electrode, known as lithium plating. However, ...
batteries, etc ; data collection; energy; mathematical models; Show all 4 Subjects
Abstract:
... Establishing an accurate mathematical model is fundamental to managing, monitoring, and protecting the battery pack in electric vehicles (EVs). The application of the deep learning algorithm-based state estimation method can significantly improve the accuracy and stability of the battery model but is hindered by the great demand for training data. This paper addresses the challenge of health-consc ...
batteries, etc ; ambient temperature; energy; heat; silicon; Show all 5 Subjects
Abstract:
... We have developed high power integrated thermoelectric generators (μTEGs). These μTEGs are CMOS compatible, i.e. based on polycristalline SiGe materials. These μTEGs have been processed directly on a silicon interposer. Even if poly-SiGe exhibits low thermoelectric performances at room temperature, the specific design and proposed architecture enable μTEGs to deliver up to 680 μW for a temperature ...
lithium batteries, etc ; anodes; electrochemistry; foil; microstructure; Show all 5 Subjects
Abstract:
... A novel island-like MoO₃₋ₓ film is directly fabricated on Mo foil by a simple preoxidation-hydrothermal process. The MoO₃₋ₓ islands are firmly fixed on Mo substrate, while separated and surrounded by ditch-like cracks. The as-synthesized MoO₃₋ₓ@Mo can be directly used as binder-free anode for a bendable Li ion battery. The uniform island-like structure provides MoO₃₋ₓ both the excellent mechanical ...