Here's how a lithium-ion battery degrades over time

Interesting articles on lithium-ion battery degradation.

http://www.engadget.com/2015/03/23/lithium-ion-battery-nanoscale-view/?utm_source=Feed_Classic_Full&utm_medium=feed&utm_campaign=Engadget&?ncid=rss_full" onclick="window.open(this.href);return false;

http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.5b00175?journalCode=nalefd&" onclick="window.open(this.href);return false;

http://phys.org/news/2015-03-device-images-lithium-battery-recharges.html" onclick="window.open(this.href);return false;

Funny timing..
I JUST got this answer from a PC vendor when asking about laptop battery warranties:

me said:

What specifically is covered by the extended battery warranty?Total failure only or will it also accommodate for degraded performance?)

vendor said:

It will cover total failure. Lithium ion technology no longer degrades in performance

Click to expand...

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desiv