1. The battery of the mobile phone is labeled as lithium-ion, while the power bank is labeled as lithium-polymer. Are these related?

Which type of cylindrical, square or pouch battery is more durable?

Today, by combining laboratory data and user real-life experience, we will uncover the truth about lithium batteries in the most down-to-earth way - don't be confused by the names. After reading this article, you will become a "lithium battery expert"!

The "family tree" of lithium batteries: lithium metal vs lithium-ion, can't tell them apart? Crash!

Typical symptoms: Thinking that all lithium batteries can be charged, and using a disposable lithium metal battery as a power bank.

Why are some lithium batteries capable of being charged thousands of times, while others break down after just one use?

The truth:

Lithium metal battery: The positive electrode uses manganese dioxide, and the negative electrode uses metallic lithium. It is not rechargeable (like old-fashioned camera batteries). Forced charging may cause an explosion and has been eliminated from the market.

Lithium-ion battery: The positive electrode uses lithium cobalt oxide/phosphate iron oxide, and the negative electrode uses graphite. It can be repeatedly charged and discharged (used in mobile phones and electric vehicles).

Real-life case: A user inserted a CR2032 button battery (lithium metal battery) into the charger, and the battery bulged and leaked, almost causing a fire. Solution:

Look for the "Li-ion" or "Li-polymer" labels on the batteries and stay away from the "Not Rechargeable" warning.

Lithium metal batteries should be discarded after use, while lithium-ion batteries can be charged as needed.