battery Flashcards
What would be the criteria behind the selection of batteries?
Batteries advantage:
- Higher energy densities than ultracapacitors
- Cost less to make
Batteries disadvantage:
- Prone to overheating and catching fire
- Lithium, cobalt, nickel are expensive, difficult to obtain in large quantities.
- Mining and processing of materials have negative environmental impacts
What would be the criteria behind the selection of ultracapacitors?
Ultracapacitors advantage:
- Higher power density
- Safer, because they do not produce combustible gasses
- long cycle life
Ultracapacitors disadvantage:
- lower cycle life
- made of carbon, abundant and inexpensive
- lower environmental inpact
What do you think of the raw materials of batteries?
The raw materials for lithium-ion batteries include lithium, cobalt, nickel, and other metals. These materials are relatively expensive and can be difficult to obtain in large quantities, which can make the cost of lithium-ion batteries high. Additionally, the mining and processing of these materials can have negative environmental impacts.
What do you think of the raw materials of ultracapcitors?
The raw materials for ultracapacitors typically include activated carbon, which is used to make the electrodes, and electrolytes. Carbon is relatively abundant and inexpensive, and the production of ultracapacitors typically has a lower environmental impact than the production of batteries. However, the energy density of ultracapacitors is lower than that of batteries, which means they require more materials to store the same amount of energy.
Regarding the use of materials for energy applications, give an assessment of the wide use of batteries in the electric system in standalone storage
One of the main applications of batteries in the electric system is in standalone storage systems, where they are used to store excess energy generated by renewable sources such as solar or wind. This energy can then be used during periods of low generation, helping to stabilize the electric grid and reduce the need for fossil fuel-powered generators.
Regarding the use of materials for energy applications, give an assessment of the wide use of batteries in the electric system in electric cars
Electric vehicles (EVs) rely on batteries as their primary source of energy storage, and as the demand for EVs continues to grow, so too does the demand for batteries. Electric cars are becoming more and more popular among consumers as the technology improves, and governments around the world are increasingly pushing for the adoption of EVs to reduce emissions and dependence on fossil fuels.
What is the relevance of the redox reactions for a battery, Energy Storage Mechanism
Redox reactions form the fundamental process by which a battery stores and releases electrical energy during discharge and charge cycles.
What is the relevance of the redox reactions for a battery, Cell Voltage
The redox potentials of anode and cathode materials directly influence the cell voltage of a battery, determining its overall potential difference.
What is the relevance of the redox reactions for a battery, Specific Energy and Power
Redox reactions impact the specific energy (energy stored per unit mass) and specific power (rate of energy delivery) of a battery, contributing to its overall performance.
What is the relevance of the redox reactions for a battery, Cycling Stability
The reversibility of redox reactions is crucial for the cycling stability of a battery, affecting its ability to undergo multiple charge-discharge cycles without significant degradation.
What is the relevance of the redox reactions for a battery, Safety Considerations
Understanding redox chemistry is essential for addressing safety concerns in batteries, preventing issues such as overheating or thermal runaway.
How it determines the fingerprint of a cell technology
Different battery technologies use distinct redox couples, and the choice of materials for anode and cathode determines the unique characteristics and performance of each technology, forming the “fingerprint” of the cell.
