Category: essays research papers; Title: Batteries. There are many kinds of batteries which consist of different materials in order to produce an electric charge.
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- About this Research Topic
- Battery research: New breakthroughs in research on super-batteries
- Lithium-ion batteries most valuable to solar-plus-storage
- Future batteries, coming soon: Charge in seconds, last months and power over the air
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About this Research Topic
Rapid publication : manuscripts are peer-reviewed and a first decision provided to authors approximately Recognition of reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done. Latest Articles. Open Access Feature Paper Article. Abstract We present the manufacturing and utilization of an all-polymer arrayed waveguide grating AWG interacting with a fiber Bragg grating FBG for battery status monitoring on the example of a 40 Ah lithium-ion battery.
The AWG is the main component of a novel low-cost [ We present the manufacturing and utilization of an all-polymer arrayed waveguide grating AWG interacting with a fiber Bragg grating FBG for battery status monitoring on the example of a 40 Ah lithium-ion battery. The AWG is the main component of a novel low-cost approach for an optical interrogation unit to track the FBG peak wavelength by means of intensity changes monitored by a CMOS linear image sensor, read out by a Teensy 3. The AWG was manufactured using laser direct lithography as an all-polymer-system, whereas the FBG was produced by point-by-point femtosecond laser writing.
Using this system, we continuously monitored the strain variation of a battery cell during low rate charge and discharge cycles over one month under constant climate conditions and compared the results to parallel readings of an optical spectrum analyzer with special attention to the influence of the relative air humidity. Full article. Between the end of the first free propagation zone a and the beginning of the second free propagation zone b , the 50 arrayed waveguides are arranged c.
At the entrance to the first free propagation zone is the input waveguide d and at the exit of the second free propagation zone are the three output waveguides e. The height of the entire structure is homogeneously 3. The TEC controller F is also allocated within the system. By using the fitted values as inputs for Equation 1 , the green S-ratio course was calculated for channel 1 and 2 and the magenta S-ratio course was calculated for channel 2 and 3, respectively. The cell is electrically connected to a battery cyclization unit and optically connected to the AWG as well as to the optical spectrum analyzer OSA.
The humidity strongly influences the optical properties of the AWG. The corrected AWG values blue course are calculated by using Equation 2. In the relevant humidity range there is a linear correlation between the optical output of the AWG and the relative humidity. Over 27 days, 25 cycles are performed. The largest errors occur when there are great variations in the humidity. Open Access Case Report. Abstract Hybrid capacitors have been developed to bridge the gap between batteries and ultracapacitors.
These devices combine a capacitive electrode and a battery-like material to achieve high energy-density high power-density devices with good cycling stability. In the quest of improved electrochemical responses, several hybrid [ Hybrid capacitors have been developed to bridge the gap between batteries and ultracapacitors. In the quest of improved electrochemical responses, several hybrid devices have been proposed. However, they are usually limited to bench-scale prototypes that would likely face severe challenges during a scaling up process.
The present case study reports the production of a hybrid prototype consisting of commercial activated carbon and nickel-cobalt hydroxide, obtained by chemical co-precipitation, separated by means of polyolefin-based paper. Developed to power a 12 W LED light, these materials were assembled and characterized in a coin-cell configuration and stacked to increase device voltage. All the processes have been adapted and constrained to scalable conditions to ensure reliable production of a pre-commercial device.
Important challenges and limitations of this process, from geometrical constraints to increased resistance, are reported alongside their impact and optimization on the final performance, stability, and metrics of the assembled prototype.
This article belongs to the Special Issue Electrochemical Capacitors. SCE voltage interval. SCE interval. SCE voltage range.
Battery research: New breakthroughs in research on super-batteries
The inset includes an image of a final stack measured. Lain , James Brandon and Emma Kendrick. Abstract Commercial lithium ion cells are now optimised for either high energy density or high power density. There is a trade off in cell design between the power and energy requirements.
A tear down protocol has been developed, to investigate the internal components and [ Commercial lithium ion cells are now optimised for either high energy density or high power density. A tear down protocol has been developed, to investigate the internal components and cell engineering of nine cylindrical cells, with different power—energy ratios.
The cells designed for high power applications used smaller particles of the active material in both the anodes and the cathodes. The cathodes for high power cells had higher porosities, but a similar trend was not observed for the anodes. In terms of cell design, the coat weights and areal capacities were lower for high power cells. The tag arrangements were the same in eight out of nine cells, with tags at each end of the anode, and one tag on the cathode. The thicknesses of the current collectors and separators were based on the best thinnest materials available when the cells were designed, rather than materials optimised for power or energy.
To obtain high power, the resistance of each component is reduced as low as possible, and the lithium ion diffusion path lengths are minimised. This information illustrates the significant evolution of materials and components in lithium ion cells in recent years, and gives insight into designing higher power cells in the future.
Lithium-ion batteries most valuable to solar-plus-storage
Open Access Article. Abstract In this paper, a classic proportional—integral PI control strategy as an energy management strategy EMS and a microgrid stand-alone power system configuration are proposed to work independently out of grid. In this paper, a classic proportional—integral PI control strategy as an energy management strategy EMS and a microgrid stand-alone power system configuration are proposed to work independently out of grid.
The system supplies a dump load with its demand power. The system advantages are represented to overcome the problem of each source when used individually and to optimize the hydrogen consumption. The simulation done for fuzzy logic and high frequency decoupling and state machine control strategies to validate the PI classic control strategy. The obtained results confirmed that the system works efficiently as a microgrid system.
The results show that the SOC for the battery is kept between 56 and Moreover, the H 2 fuel consumption is A big area for improvement is available for cost saving, which suggests the need for further research through system optimization and employing different control strategies. Abstract The key challenge in developing a physico-chemical model is the model parameterization.
The paper presents a strategic model parameterization procedure, parameter values, and a developed model that allows simulating electrochemical and thermal behavior of a commercial lithium-ion battery with high accuracy. Steps taken [ The key challenge in developing a physico-chemical model is the model parameterization. Steps taken are the analysis of geometry details by opening a battery cell under argon atmosphere, building upon reference data of similar material compositions, incorporating cell balancing by a quasi-open-circuit-voltage experiment, and adapting the battery models reaction kinetics behavior by comparing experiment and simulation of an electrochemical impedance spectroscopy and hybrid pulse power characterization.
The parameterized model was adopted to analyze the heat dissipation sources based on the internal states of the battery at different operation modes. Simulation in the field of thermal management for lithium-ion batteries highly depends on state of charge-related thermal issues of the incorporated cell composition. The electrode balancing is an essential step to be performed in order to address the internal battery states realistically. The individual contribution of the cell components heat dissipation has significant influence on the temperature distribution pattern based on the kinetic and thermodynamic properties.
Abstract One way to support the development of new safety practices in testing and field failure situations of electric vehicles and their lithium-ion Li-ion traction batteries is to conduct studies simulating plausible incident scenarios. This paper focuses on risks and hazards associated with venting [ One way to support the development of new safety practices in testing and field failure situations of electric vehicles and their lithium-ion Li-ion traction batteries is to conduct studies simulating plausible incident scenarios.
This paper focuses on risks and hazards associated with venting of gaseous species formed by thermal decomposition reactions of the electrolyte and electrode materials during thermal runaway of the cell. A test set-up for qualitative and quantitative measurements of both major and minor gas species in the vented emissions from Li-ion batteries is described.
The objective of the study is to measure gas emissions in the absence of flames, since gassing can occur without subsequent fire. HC measured as propane equivalents. The dotted line represents reconstructed data in place of missing data in the initial part of the graph due to over-loading of the flame ionization detector FID at the used sensitivity range.
Future batteries, coming soon: Charge in seconds, last months and power over the air
The cell stack was placed on the heating plate in the test vessel 1 , and the exhaust duct 2 collected the vented gases and lead them to the measurement equipment. Thermocouples were placed at locations illustrated by the red-crossed circles. Abstract Copper is probably one of the most important metal used in the broad range of electronic applications.
It has been developed for many decades, and so it is very hard to make any further advances in its electrical and thermal performance by simply [ Copper is probably one of the most important metal used in the broad range of electronic applications. It has been developed for many decades, and so it is very hard to make any further advances in its electrical and thermal performance by simply changing the manufacture to even more oxygen-free conditions. Carbon nanotubes CNTs due to their excellent electrical, thermal and mechanical properties seem like an ideal component to produce Cu-CNT composites of superior electrochemical performance.
In this report we present whether Cu-CNT contact has a beneficial influence for manufacturing of a new type of carbon-based supercapacitor with embedded copper particles. The prepared electrode material was examined in symmetric cell configuration.
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Abstract Aging assessment is critical for lithium-ion batteries LIBs as the technology of choice for energy storage in electrified vehicles EVs. Existing research is mainly focused on either increasing modeling precision or improving algorithm efficiency, while the significance of data applied for aging assessment [ Aging assessment is critical for lithium-ion batteries LIBs as the technology of choice for energy storage in electrified vehicles EVs.
Existing research is mainly focused on either increasing modeling precision or improving algorithm efficiency, while the significance of data applied for aging assessment has been largely overlooked. Moreover, reported studies are mostly confined to a specific condition without considering the impacts of diverse usage patterns on battery aging, which is practically challenging and can greatly affect battery degradation. This paper addresses these issues through incremental capacity IC analysis, which can both utilize data directly available from on-board sensors and interpret degradations from a physics-based perspective.
Through IC analysis, the optimal health feature HF and the state of charge SOC -based optimal data profile for battery aging assessment have been identified. Four stress factors, i. Impact analysis of different stress factors through the optimal HF with the SOC-based optimal data profile from aging campaign experiments have generated practical guidance on usage patterns to improve battery health monitoring and lifetime control strategies. Open Access Review. Abstract Lead-acid batteries are currently the most popular for direct current DC power in power plants.