The Problems
What are the problems with the current Li+ batteries?
#1 Climate change and sustainability:
Climate change is undeniably one of the biggest problems we are facing worldwide, and lithium batteries significantly contribute to it.
-
By 2100, with no notable decrease in greenhouse gas emissions, up to three out of four people could face the danger of dying due to heat.
-
Between 2027 and 2042, the threshold for irreversible damage, an increase in temperature of 1.5°C, will be reached.
#2 Safety: Li+ batteries are also susceptible to thermal runaway, which causes them to catch on fire and explode, endangering those who use Li+ battery technology.
What benefits do Na+ batteries have over Li+ batteries?
-
Sodium is a plentiful resource that can be harvested from the oceans, meaning its production is more environmentally friendly.
-
Na+ batteries are significantly cheaper, as they don't require metal.
-
Na+ batteries are less prone to explosion and thermal runaway.
-
Na+ batteries are easier to recycle than Li+ batteries.
So... why aren't Na+ batteries as popular as Li+ batteries?
-
​Na+ batteries have a lower energy density and storage capacity than Li+ batteries, meaning they're not as efficient.
-
Na+ batteries lose function after long term usage while Li+ batteries do not.
But how exactly did Na+ and Li+ batteries evolve to their current form?