Week 8: Lithium batteries

• Engels
• MBO
• Studiejaar 4

 Lithium batteries

Lesson goals

• You will learn about the functions of lithium batteries
• You will learn about the different types of batteries used in the aviation industry

Text structure

Weather forecast answers

1. What are some of the global gadgets mentioned in the video that collect data for weather forecasting?

   - Radar systems, weather balloons, ocean monitoring buoys, and various other instruments.

2. How do weather satellites contribute to the understanding of atmospheric changes?

   - Weather satellites in orbit provide a comprehensive view of atmospheric changes before they reach Earth by observing temperature, humidity, and winds.

3. Describe the role of numerical weather prediction in the weather forecasting process.

   - Numerical weather prediction is the process where data, including satellite observations, is fed into powerful supercomputers. These computers analyze millions of bits of data about current weather, oceans, and the atmosphere to forecast future weather conditions.

4. List at least three sectors or groups of people mentioned in the video that rely on accurate weather forecasts.

   - Governments, pilots, farmers, fishermen, sailors, shop owners, tourists, building workers, and power stations.

Weather forecast answers

5. Explain the significance of satellites positioned 36,000 kilometers above Earth, like meteor sat, in weather monitoring.

   - Satellites positioned 36,000 kilometers above Earth, like meteor sat, are essential for detecting rapidly changing weather, such as storms. They provide a 24-hour watch over specific regions, aiding meteorologists in predicting short-term weather developments.

6. What types of data do weather satellites in orbit observe, according to the information in the video?

   - Weather satellites in orbit observe temperature, humidity, and winds.

7. Why is it emphasized in the video that accurate weather forecasts enable individuals and entities to plan for various activities?

   - Accurate weather forecasts are crucial for planning and decision-making in various sectors, ensuring the smooth operation of activities like keeping traffic moving, planes on schedule and safe paths, and facilitating daily routines with minimal disruptions.

Weather forecast answers

1. C. cloudy

2. B. freezing

3. A. blizzard

4. B. clear

5. C. Fahrenheit

6. B. smog

7. A. drizzling

8. C. humid

9. B. lightning

10. A. a thermometer

Dry Cell Battery

What are Dry Cell Batteries?

Dry cell batteries are a type of electrochemical cell that converts stored chemical energy into electrical energy. Unlike wet cells, which contain liquid electrolytes, dry cells use a paste or gel form of electrolyte. They are called "dry" because they don't contain free-flowing liquid.

Lead Acid Battery

What is a Lead-Acid Battery?

A lead-acid battery is a type of rechargeable battery commonly used in cars, motorcycles, uninterruptible power supplies (UPS), and other applications where a reliable and rechargeable energy source is needed.

Lithium-ion Battery

What is a Lithium-Ion Battery?

A lithium-ion (Li-ion) battery is a type of rechargeable battery that you can find in many everyday devices like smartphones, laptops, cameras, and even electric vehicles. It's popular because it's lightweight, holds a lot of energy, and can be recharged multiple times.

Types of batteries

Aircraft batteries are used for many functions like ground power, emergency power, and fault clearing. Most small private aircraft use lead acid batteries. Most commercial and corporate aircraft use nickel-cadmium batteries. While (most) drones or UAVs use Lithium-ion batteries. However, other lead acid types of batteries are becoming available such as the valve-regulated lead-acid batteries.

How many types of batteries are used in an aircraft?

1. There are typically two types of batteries used in an aircraft.
2. There are three types of batteries used in an aircraft.
3. There is only one type of battery used in an aircraft.
4. There are four types of batteries used in an aircraft.

What are the two types of batteries commonly used in aircraft?

1. The two types of batteries commonly used in aircraft are lead-acid batteries and nickel-cadmium batteries.
2. The two types of batteries commonly used in aircraft are lithium-ion batteries and alkaline batteries.
3. The two types of batteries commonly used in aircraft are lithium-polymer batteries and zinc-carbon batteries.
4. The two types of batteries commonly used in aircraft are lithium-ion batteries and nickel-metal hydride batteries.

Which type of battery is primarily used for starting the aircraft engines?

1. Nickel-cadmium batteries are primarily used for starting the aircraft engines.
2. Lithium-ion batteries are primarily used for starting the aircraft engines.
3. Lead-acid batteries are primarily used for starting the aircraft engines.
4. Alkaline batteries are primarily used for starting the aircraft engines.

What is the main advantage of using nickel-cadmium batteries in aircraft?

1. The main advantage of using nickel-cadmium batteries in aircraft is their low cost.
2. The main advantage of using nickel-cadmium batteries in aircraft is their lightweight design.
3. The main advantage of using nickel-cadmium batteries in aircraft is their high energy density.
4. The main advantage of using nickel-cadmium batteries in aircraft is their long lifespan.

Which type of battery is commonly used for emergency power in aircraft?

1. Lead-acid batteries are commonly used for emergency power in aircraft.
2. Alkaline batteries are commonly used for emergency power in aircraft.
3. Lithium-ion batteries are commonly used for emergency power in aircraft.
4. Nickel-cadmium batteries are commonly used for emergency power in aircraft.

Exercise 1 - Listening

Watch the movies to find out what went wrong with the Lithium-ion  battery.

Answer the questions of exercise 1.

Exercise 1 - Listening

1. What kind of problems did the Japanese pilots face at the beginning of the report?

 They could smell burning / received a cockpit warning of battery problems

2. What did they find during the inspection of the Japanese aircraft?

A flammable liquid had leaked from the main lithium ion battery located just below the cockpit

3. Why are Lithium ion batteries particularly dangerous?

Their reaction when they go out of control is extremely strong and powerful. Fires take a long time to put out in a plane.

Exercise 1 - Listening

4. Which two issues are caused by corrosive fluids being released?

They are corrosive / they carry a charge which shorts out other systems.

5. Why were the Lithium Ion designs initially chosen?

Because they can take a large charge of energy

Exercise 2 - Reading articles

Read the articles: 

• Lithium-ion Battery Safety concerns
• Boeing Dreamliner Grounded Worldwide

To gain insight abour lithium-ion batteries and answer the questions correctly!

Exercise 3 - Technical problem

The Boeing Dreamliner had technical problems before.

• Divide in groups
  
• Go to exercise 3

The goal: Talk about the problems and possible solutions

What did your group came up with?