What Do You Know About The Future Lithium-ion Battery
Most people think of lithium ion batteries as the type of batteries that power laptops and cell phones, and not a commercial grade workhorse
. The new lithium batteries are based on nanostructured electrodes, where chemistry of the cells has been configured to allow a lot of electrical charges without wearing out. There are many reasons batteries age, with heat being one of the main reasons. With the latest battery, improved chemistry offers more power even under extremely high temperatures, without sacrificing storage or energy capabilities.
Creating efficient battery technology has been an ongoing challenge for developers. There are no real moving parts in a battery, but simply put, it is difficult to build a battery that holds a charge for long periods and especially hard when materials are potentially volatile and unstable. With today s announcement of a new type of lithium ion battery capable of operating in extreme heat or cold, Greg Tremelling said that although he has not been involved with any RD with this new technology, he'll be leveraging it for new customers, especially for use on electrical power grids run by renewable energy sources.
One of the technologies was done on the Formula One circuit, integrating a hybrid power boost system into a race car. Using batteries at certain points around the track, the driver was able to hit a button and add a large boost to the horsepower of the car. This was an exciting development because the battery was operating at high power levels and high temperatures.
The supplier of
lithium-ion batteries to BMW, General Motors and Fisker has developed new cell technology that could extend the range and cut the price of electric vehicles from as early as next year.
The production of the new nanophosphate EXT cells, which operate more efficiently and offer a more stable full-charge range in extreme hot and cold weather conditions, would begin in 2013.
Vieau said the new cells would do away with the need for hybrids, plug-ins and EVs to be equipped with systems to maintain consistent battery temperatures, subsequently reducing vehicle weight, complexity and cost.
Conventional lithium ion batteries do use rare metals, such as cobalt and nickel, in the positive electrode. But these metals are costly, and supplies are not always stable. Eliminating them will likely make the batteries cheaper to manufacture.
Itaru Honma succeeded in replacing these metals with organic substances. As a result, materials costs for the positive electrode have been slashed to less than one-fifth what they were before.
Honma made a button-sized lithium ion battery, like the shape of a
cr2025 lithium battery, for testing. This prototype achieved an energy density of 200 watt-hours per kilogram, roughly double that of current lithium ion batteries. Tests confirmed that the button-sized battery could withstand at least 100 charge-discharge cycles.
The next step will be to look further for organic materials that more efficiently store power and boost the battery's capacity, with a goal of developing a secondary battery for electric vehicles.
by: jutapower
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