Types of Battery Cells: Round and Flat Cells

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Questions and Answers

What is the rated voltage of mercury oxide coin cells?

  • 3.5V
  • 2.8V
  • 1.55V
  • 1.35V (correct)

Which type of cells have a constant internal resistance and voltage throughout the discharging process?

  • Lithium coin cells
  • Nickel Cadmium Batteries
  • Mercury oxide coin cells (correct)
  • Silver oxide coin cells

What is a characteristic feature of silver oxide coin cells?

  • Used for pacemakers
  • Rated voltage of 3.5V
  • Low energy density
  • High voltage depression (correct)

Which type of cell has high energy density, a high lifespan, and is used for pacemakers and cameras?

<p>Lithium coin cells (C)</p> Signup and view all the answers

What type of batteries are used for pacemakers, cameras, and video cameras?

<p>Lithium silver chromate cells (B)</p> Signup and view all the answers

Which type of batteries generate gases during the charging process?

<p>Nickel Cadmium Batteries (B)</p> Signup and view all the answers

Why is the amount of current that can be tapped smaller when discharging a battery in a shorter time period with higher current?

<p>Chemical conversion of the plates only takes place at the surface, not inside. (D)</p> Signup and view all the answers

What are the positive pole plates made of in Nickel-Cadmium batteries?

<p>Fine punched nickel-plated steel tubes filled with nickel or graphite powder. (C)</p> Signup and view all the answers

What is the electrolyte used in Nickel-Cadmium batteries and how is it prepared?

<p>Lime potash diluted with chemically pure water. (A)</p> Signup and view all the answers

How does the density of the electrolyte change during battery operation?

<p>It remains nearly constant regardless of the charge condition. (B)</p> Signup and view all the answers

What is the composition of the filling in positive pole plates of Nickel-Cadmium batteries?

<p>Nickel compound with finely spread nickel or graphite powder. (C)</p> Signup and view all the answers

Why do aircraft commonly use Nickel-Cadmium batteries?

<p>Nickel-Cadmium batteries offer reliable performance in critical aircraft systems. (B)</p> Signup and view all the answers

What is the primary reason why primary cells cannot be reused?

<p>They cannot be charged (C)</p> Signup and view all the answers

Which type of cell is known for its reversibility in electrochemical processes?

<p>Nickel-cadmium cells (D)</p> Signup and view all the answers

In which type of batteries is the construction and basic chemical action discussed in the provided text?

<p>Lead batteries (B)</p> Signup and view all the answers

What is the characteristic of secondary cells that allows them to be recharged and reused?

<p>Their electrochemical processes are reversible (C)</p> Signup and view all the answers

Which type of battery must only be charged using DC, as mentioned in the text?

<p>Lead batteries (B)</p> Signup and view all the answers

What factor determines the capacity of galvanic cells?

<p>The amount of charge they can supply over a period (A)</p> Signup and view all the answers

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