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"dependence on imported batteries"
Are there any potential hardline battery exporting nations??? And anyway, what's stopping the US building up it's own manufacturing base. Again?
The big breakthrough was NiMH (nickel-metal hydride) batteries. This technology was developed by a very bright and energetic older gentleman named Stanford Ovshinsky. It was truly a game changer. NiMH batteries were first tried in the electric vehicles used in California several years ago. In 1999, General Motors used NiMH batteries in the EV-1 electric vehicle, giving the car a range of 140 miles. Southern California Edison put a combined 7 million miles on 320 electric Toyota RAV4’s, and concluded that the NiMH battery would last 130,000 to 150,000 miles. Ovonics was acquired by Energy Conversion Devices (NASDAQ: ENER). In 1994, GM bought 60% of ECD, and then in 2000 Texaco bought GM’s share of ECD, and in a 50/50 partnership with ECD, created a spinoff battery company called Cobasys (which owns the patent to NiMH technology). Shortly thereafter, Texaco was acquired by Chevron (NYSE: CVX).
Carmakers today are mostly focused on lithium batteries. In the past several years lithium batteries have become the standard for laptops and cell phones, because they hold the most charge of commonly available batteries. Tesla Motors, which started shipping it’s first electric car this year, leveraged the existing battery technology by making a battery pack out of 6800 lithium batteries, each of which are about the size of a standard “AA” penlight battery.
...lithium batteries, each of which are about the size of a standard “AA” penlight battery...
Thanks, for that. I figure people often make that comparison primarily because the aspect ratio is so similar to that of AAs.I just took this photo comparing 18650 cells (from a flashlight) to more common AA, C and D sizes.
Is that like a bad joke that the Li-Ions are called "UltraFire" with a logo of a burning fire?!
Represents "Current" and is defined as follows It(A)= Rated Capacity (Ah) / 1(h).