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Interactive video lesson plan for: How Can You Make Your Smartphone Battery Last Longer?

Activity overview:


The new iPhone is slimmer and faster than ever. But like most new generations of smartphones, its battery has pretty much stayed the same over the years. Short of carrying an external battery all the time, is there any way to extend the life of your smartphone battery? How does heat affect your battery? What causes them to become unstable? In the latest Reactions episode, we explain the chemistry of lithium-ion batteries, why they occasionally explode, and share some tips to get the most from that smartphone battery.

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Elaine Seward

Megan Cartwright

Executive Producer:
Adam Dylewski

Scientific consultants:
Danielle Buckley, Ph.D.
Darcy Gentleman, Ph.D.

2014 Nature Communications - Improving battery safety by early detection of internal shorting with a bifunctional separator (
Described in Stanford news release (

2016 Nature Energy - Fast and reversible thermoresponsive polymer switching materials for safer batteries (
Described in Stanford news release (

2015 Scientific Reports - Effect of Temperature on the Aging rate of Li Ion Battery Operating above Room Temperature (

2016 Gizmodo – Future batteries could have six times more capacity (

Penn State University - Lithium ion batteries (

The Ohio State University – Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics/Center for Automotive Research – Aging mechanisms in Li-ion batteries (

Sigma-Aldrich white paper – Lithium-ion battery performance: Dependence on material synthesis and post-treatment methods (

2012 The Bridge - Keeping Up with Increasing Demands for Electrochemical Energy Storage (

2015 The Bridge - Lithium Ion Batteries and Their Manufacturing Challenges (

University of Washington Clean Energy Institute – Lithium Ion Battery (

2015 Popular Mechanics - 8 Essential Tips To Keep Your Phone's Battery Healthy (

2014 Gizmodo - How To Take Care of Your Smartphone Battery the Right Way (

Apple – Why Lithium-ion? (

Apple – Maximizing Battery Life and Lifespan (

2011 Ars Technica - Ask Ars: What is the best way to use a Li-ion battery? (

Tagged under: Reactions,American Chemical Society,Chemistry,science,phone battery,iphone7, phone battery suck,blow,full charge,electrode,anode, phone die,dead phone,iphone,smartphone,android,samsung,lithium ion,battery,batteries, batteries longer,poor performance battery,heat,unstable, phone charged, , charge phone, charge phone faster, care phone,battery life,phone,charge

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