Alkaline battery

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/alkaline-battery

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the IEC designation?L
2. What is the electrolyte type?Alkaline, commonly potassium hydroxide (KOH)
3. Why do alkaline batteries last longer than older batteries?Because the alkaline electrolyte and the zinc/manganese design give the battery a higher energy density and help it keep its charge for years, even when not used.
4. How does an alkaline battery make electricity?When the battery is used, zinc at the anode oxidizes and releases electrons, while manganese dioxide at the cathode accepts electrons. The electrons flow through the device, providing power.

Primary Battery: A non-rechargeable electrochemical cell designed for single use until its energy is depleted.
Electrolyte: A substance containing free ions that conducts electricity, essential for ion transport within a battery.
Oxidation-Reduction (Redox) Reaction: A chemical reaction involving the transfer of electrons between species, fundamental to battery operation.
Energy Density: The amount of energy stored per unit volume or mass of a battery.