scispace - formally typeset
Search or ask a question

How long does it take for corrosion to build up on a car battery? 

Answers from top 8 papers

More filters
Papers (8)Insight
H2 evolution, corrosion, and zincate/ZnO formation occur at the anode during battery operation and have a negative effect on battery performance.
In long-life applications, the corrosion properties of cemented carbides can have a large influence on overall performance.
It is found that the general corrosion model with a time-invariant corrosion rate cannot realistically predict the long-term corrosion material loss and the thickness of corroded plates may show considerable spatial variability due to pitting corrosion.
Moreover, the bipolar plates in the modified battery structure demonstrate a higher capacity to restrain oxidation corrosion during the charging process.
Correlations between the accelerated corrosion test and the corrosion station test are established allowing the possibility of predicting long-term atmospheric corrosion behavior based on accelerated corrosion tests only.
This approach will allow to quantify the galvanic corrosion current, making it possible to determine, in a second step, the chloride threshold values for corrosion initiation.
It is identified that the modeling approach used in this work can be used to investigate the effect of corrosion on lead-acid battery performances.
Therefore, when the lead electrode is used as a positive electrode in a battery, no corrosion due to the exposure of the bare metal is expected.

See what other people are reading

How does the configuration of peizosensors affect the durability of concrete under environmental loading?
5 answers
The configuration of peizosensors can significantly impact the durability of concrete under environmental loading. Fiber-optic sensors (FOS) mounted on supplemental bars connected to structural reinforcement bars have shown promise in accurately monitoring strain in concrete structures. Additionally, a concrete durability tester with a draw bar system incorporating a strain sensor has been developed to assess long-term load-carrying processes without stress relaxation, enhancing the monitoring of concrete durability. These innovative sensor configurations provide valuable insights into the mechanical performance degradation of reinforced concrete structures under the coupling effect of load and environmental factors, ultimately contributing to a better understanding of concrete durability under challenging conditions.
How marine organism foulling system with natural chemical compounds?
5 answers
Marine organisms fouling systems with natural chemical compounds can lead to biofouling issues, impacting various industries. Biofouling occurs when microorganisms attach to surfaces, forming biofilms that can degrade materials and reduce performance. Traditional methods like biocides have limitations, prompting the exploration of alternative approaches. Lichen-associated symbionts produce compounds inhibiting biofilm formation, offering eco-friendly antifouling solutions. Marine microbes are prolific sources of bioactive molecules, potentially providing environmentally friendly antifouling agents to combat biofouling. Natural products from marine-derived fungi have shown significant anti-barnacle settlement and anti-biofilm activities, indicating the potential of marine natural compounds as antifouling agents. Exploring marine microorganisms for effective anti-biofilm compounds is crucial for combating biofouling issues in both medical and marine industries.
What is the Business Impact of Energy Management?
5 answers
Energy management plays a crucial role in businesses, impacting their competitiveness, sustainability, and cost-effectiveness. Effective energy management strategies can lead to resource conservation, climate protection, and cost savings, while ensuring uninterrupted access to energy resources. Implementing energy management processes can enhance a company's image, demonstrate proactive climate protection efforts, and comply with global energy-saving initiatives and legislation. By integrating energy management practices from top management to operational levels, businesses can achieve competitive advantages through efficient resource utilization and reduced environmental impact. Furthermore, energy management systems utilizing advanced technologies like big data, Internet of Things, and cloud computing can significantly improve energy efficiency, reduce carbon emissions, and enhance overall energy management performance in energy-intensive industries like steel production.
What causes combustion of wood to be less efficient?
5 answers
The combustion of wood can be less efficient due to various factors highlighted in the provided research contexts. Factors such as uneven wood burning leading to solid residue formation, inadequate distribution of combustion air, and the presence of impurities like soil affecting the combustion process can all contribute to reduced efficiency and increased emissions. Additionally, the chemical composition of ash from phytomass biofuels can result in low ash melting temperatures, causing slagging and sintering issues that further hinder the combustion process. Moreover, the use of recycled wood in combustion can lead to increased corrosion problems in furnace walls due to elevated concentrations of heavy metals and chlorine. Understanding and addressing these factors are crucial in optimizing wood combustion efficiency and reducing emissions in small-scale boilers.
Ethanolic extraction of mango leaf is organic?
5 answers
Yes, ethanolic extraction of mango leaf is considered organic. The process involves using ethanol as a solvent to extract bioactive compounds from mango leaves. This method results in the production of organic leaf extracts with potential medicinal properties, such as anti-inflammatory and antioxidant activities. The ethanolic extraction of mango leaves has been shown to contain phenolic compounds, flavonoids, and other secondary metabolites that contribute to its therapeutic effects. Additionally, the use of ethanol as a solvent in the extraction process aligns with organic extraction practices, making the resulting mango leaf extract organic in nature.
How does the chemical composition of Nb2O5 affect the redox properties of a GCE modified electrode?
5 answers
The chemical composition of Nb2O5 significantly influences the redox properties of a GCE modified electrode. Different studies have explored the synthesis and modification of Nb2O5 to enhance its electrochemical performance. For instance, the synthesis of Nb2O5/rGO composites has shown improved specific capacitance and electron transfer compared to rGO alone. Additionally, in situ doping of alkali metals in Nb2O5 has demonstrated a twofold enhancement in photoelectrochemical water splitting efficiencies, indicating improved charge carrier density and surface charge transfer. Moreover, Nb2O5/graphene nanocomposites have exhibited superior electrochemical conductivity and cyclic stability, making them effective electrodes for supercapacitor applications. These findings collectively highlight the crucial role of Nb2O5 chemical composition in enhancing the redox properties of GCE modified electrodes.
What are the issues preventing electrolysis from being used for desalinating sea water?
4 answers
The challenges hindering the use of electrolysis for desalinating seawater include the presence of impurities, such as foreign ions, microorganisms, and insoluble salts, which can block active sites and reduce membrane activity. Seawater electrolysis faces unique chemical challenges like detrimental halogen chemistries that poison anode catalysts and accelerate membrane degradation. The complex ionic environment in seawater leads to issues like chloride oxidation-related corrosion and the deposition of insoluble solids on electrode surfaces, impacting electrocatalytic performance. Furthermore, the sluggish kinetics, detrimental chlorine chemistry, and impurities/precipitates in seawater make it more challenging than pure water splitting for hydrogen production. Addressing these issues requires developing corrosion-resistant electrodes, selective catalysts, and stable seawater-splitting catalysts to enhance performance and stability in seawater electrolysis.
Why do thermal conductivities in a lithium battery go in different directions?
4 answers
Thermal conductivities in lithium batteries exhibit different behaviors due to various factors highlighted in the research. Single-crystal LiCoO2 displays strong anisotropy, temperature dependence, and size effects, resulting in high thermal conductivities, while polycrystalline LiCoO2 is more isotropic with lower thermal conductivities due to random grain orientations and grain boundary thermal resistance. Battery aging affects the through-plane thermal conductivity, with reduced state of health leading to a linear decline of up to -40%, impacting thermal management system design. Changes in thermal conductivity during charge-discharge cycles are linked to volume changes, formation of low conductivity compounds, and interface resistance, affecting heat transfer and ionic transport in the cathode. These insights emphasize the importance of understanding thermal transport processes for effective battery design and thermal management.
Why N and S Donor ligand are not efficient for the separation of actinide?
4 answers
N,S-donor ligands face challenges in actinide separation due to their redox activity and complex interactions. While S-donating thioethers show selectivity for actinides over lanthanides, issues like hydrolysis and radiolysis limit their efficiency. Additionally, ligands like CyMe4-BTPhen exhibit promising actinide separation capabilities but suffer from low solubility and irradiation resistance. On the other hand, N,O-hybrid donor ligands have shown potential in the closed nuclear cycle concept for efficient minor actinide separation, especially in liquid-liquid extraction processes. Preorganized N-heterocyclic ligands with amide groups demonstrate excellent An(III)/Ln(III) separation performance, emphasizing the importance of ligand structure in enhancing extraction ability and selectivity. These findings collectively highlight the complexities and limitations associated with N and S donor ligands in actinide separation processes.
What are the optimal velocity for prevent bio fouling?
5 answers
The optimal velocity for preventing biofouling varies depending on the specific system. Lower velocities can lead to higher biofouling rates, while higher velocities can help mitigate biofilm growth. In the context of heat exchangers, redistributing flow rates to optimize velocity distribution throughout the network can effectively reduce fouling. Additionally, in marine environments, ozonation of seawater at a velocity of 0.5 m/s has been shown to be an effective method for preventing biofouling. Moreover, utilizing electrochemistry for in-situ chlorine evolution at specific velocities can prevent biological fouling on underwater optical windows. Therefore, the optimal velocity for biofouling prevention depends on the specific application and system, with considerations for factors such as flow rates, heat transfer, and the nature of the environment.
Principle for chlorination of drinking water?
4 answers
The principle for chlorination of drinking water involves ensuring the right dosage of chlorine to effectively disinfect the water while avoiding over-dosing or under-dosing. Excessive chlorine can lead to unnecessary costs and the formation of harmful by-products like trihalomethanes. Chlorine injection devices are designed to safely disinfect well water by maintaining optimal chlorine concentrations, making the water safe for consumption. A method for chlorination includes electrolyzing a side water stream to introduce free chlorine back into the main water stream at a specific flow rate. Factors influencing the formation of disinfection by-products like trichloroacetone during chlorination include pH levels, chlorine dosage, and the precursor substance used in the process.