News by Levels · Level 1 · Student worksheet

New Chemistry Helps Water-Based Batteries

In this lesson: Identify the battery change and the next test.

Name: __________________________ Date: __________________

Read the story

A team led by University College London improved a water-based battery design. Its iodine could transfer four electrons instead of two.

This helped it store more energy. The researchers still need to test the technology on a larger scale.

Source: University College London via Tech Xplore, 2026-11-13. https://techxplore.com/news/2026-11-based-batteries-energy-iodine-electrolyte.html

Read and practise

1. How many electrons could the iodine transfer in the improved design?

   1. Four instead of three
   2. Four instead of two
   3. Two instead of four

2. What do researchers still need to do?

   1. Test the technology on a larger scale
   2. Limit all future work to the same small test
   3. Complete a commercial launch before any larger test

Your turn

Explain the change in electron transfer and one remaining task.

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Read online: https://newsbylevels.com/news/ucl-water-battery-iodine-electron-transfer-november-2026/level-1/