Monthly Archives: November 2014

14Nov 2014

You have heard it before from me: battery performance is getting seriously challenged. The battery vendors are having a difficult time, and I am being kind, in meeting the expectations of the mobile device manufacturers. Specifically, it is getting extremely difficult for the battery vendors to simultaneously deliver high capacity, fast charging, and long cycle […]

11Nov 2014

A single lithium-ion 18650 cell is relatively small in size and in capacity. So how does Tesla pack 85,000 W.h in the battery pack of the Tesla Model S? The answer is very carefully. The battery pack in a Tesla S is a very sophisticated assembly of several thousands of small individual 18650 cells connected […]

08Nov 2014

The cost of today’s lithium ion battery constitutes a very large fraction of the total cost of electric vehicles, and a very visible portion of the total BOM (bill of materials) cost for a mobile device. It is estimated that the battery pack for a Chevy Volt costs nearly $10,000. That’s nearly 25% of the […]

05Nov 2014

That is of a rechargeable lithium-ion battery, of course….We all know that lead-acid batteries, the type you have under your hood, tend to be of a standard size, but lithium-ion batteries can come in a multitude of packaging and shapes. One of the most common misconceptions is that polymer batteries are different. In fact, they […]