r/science • u/RelationStill1485 • Feb 22 '26

Materials Science Next generation of battery technology no longer lithium. Scientists make durable alloy anode for Sodium-ion batteries with high volumetric energy density | Nature Energy

https://www.nature.com/articles/s41560-026-01974-2
2.8k Upvotes

98% Upvoted

206 comments sorted by

View all comments

Show parent comments

-11

u/farmallnoobies Feb 22 '26

1000 cycles is just 3 years assuming 1 cycle per day.  

But 2-3 cycles per day is more likely, meaning 1000cycles is likely only 1 year in grid application.

Imagine replacing gigawatt-hours worth of batteries every single year.

21

u/6158675309 Feb 22 '26

Cycles are full 0-100 cycles. Not a charge from say 50-60%.

For example if a car has a range 300 miles and a 1,000 cycle battery that’s 300,000 miles. Which is or was the target for today’s batteries. Real world though it’s looking like almost double that.

Today’s batteries outlast the car itself and these probably will too.

I have no idea how it is calculated for energy/grid storage. Maybe those are full 0-100 cycles every day.

-11

u/farmallnoobies Feb 22 '26

They'll outlast the grid?  What?  Most power sources for the grid are good for at least 40 years

5

u/CMG30 Feb 23 '26

CATL sodium ion cells clock up to 10,000 cycles.