There exists already a lithium battery technology commercially available that claims 20 000 cycle life (that is more than 50 years of daily full discharges). Obviously, there are at least currently some drawbacks with lithium titanate compared to the standard lithium technologies, namely cost and power density.<p><a href="http:&#x2F;&#x2F;www.ev-power.eu&#x2F;LTO-Tech&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.ev-power.eu&#x2F;LTO-Tech&#x2F;</a>
<a href="http:&#x2F;&#x2F;www.ev-power.eu&#x2F;LTO-technology&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.ev-power.eu&#x2F;LTO-technology&#x2F;</a><p>(I have no personal experiences with the technology)