Where should I go with the lithium ion battery theme for a high school science fair project?

Question

I am currently taking an AP Environmental and Forestry Science course in my senior year of high school. It mandates that each student participates in the high school science fair with an environmentally themed project. (For instance, which is more energy efficient, wind or solar power?) I want to do something about either Hybrid technology or simply lithium ion batteries found in hybrids, cell phones, and laptops and discuss the impact of them on the environment. Does anyone have any suggestions?

Answer 1

What is the easiest way to start a fire with them?

Answer 2

Conduct a study one some of the following topics

Charge: How well they hold charge, capacity to weight ratio, environmental impact (if disposed of improperly)

Past and Future of the batteries.

How to utilize them in your own solar panel.