EV batteries are the bane of electric car manufacturers. Can we make enough batteries to meet consumer demand? they ask. What needs to be done to make EV batteries more reliable and run cooler? What is the cost per kilowatt hour? How can we devise the fastest charging with the longest possible range? Is EV battery leasing a viable option?
The most popular stories this week on Gas2 surrounded the appeal and power of EV batteries. Fast charging always comes into conversations about EV batteries. The newly-announced Toshiba SCiB battery, with high energy density and ultra-rapid recharging characteristics, may be able to add up to 200 miles of range to an electric car after just six minutes, using a high power charger. Differing reports out of the Hyundai camp say that its electric Kona may offer two battery options: a rather small 40 kWh battery as well as a larger 64 kWh battery that will produce an EPA range of about 210 miles. Nissan has calculated that replacement for a 2011 to 2015 Nissan LEAF will cost $5,499, plus installation and special adapter kit charges. Renault says that more than 100,000 customers have taken advantage of its battery leasing program; in fact, 93% of their customers have opted for battery leasing since the program began. The Chrysler Pacifica Plug-In Hybrid has a 16kWh battery and offers fully electric power for the first 30 miles of every drive. With two robust electric motors, it can obtain up to 33 miles on the battery alone.
Here are those stories and more on this week’s edition of the “Gas2 Week in Review.”
Never really part of any previous popular conversations about battery power and production, Toshiba says it has developed a new version of its SCiB battery that can be recharged in less time and at higher power than batteries from its competitors. The SCiB rechargeable battery cells differ from most other lithium ion batteries, as they use lithium titanium oxide (LTO) for the anode.
Toshiba argues that LTO improves battery performance at low temperatures, offers excellent power density, gives long battery life, and is resistant to the damage that can occur in other batteries from external impacts. In tests, the new battery maintains 90% of its capacity after 5,000 charging cycles. Toshiba uses titanium niobium oxide for its anode material, which Toshiba claims has double the storage capacity of the graphite based anodes generally used in conventional lithium ion batteries. With high energy density and ultra-rapid recharging characteristics, the new battery is supposed to add up to 200 miles of range to an electric car after just 6 minutes using a high power charger.