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A new approach to battery design developed by researchers at MIT could provide a lightweight and inexpensive alternative to existing batteries for electric vehicles and the power grid. It could even make rejuvenating the battery as easy as pumping petrol into a car. The work, which was carried under the guidance of materials science professors W. Craig Carter and Yet-Ming Chiang, is described in a paper published recently in Advanced Energy Materials.
The new battery uses an innovative device called a semi-solid flow cell, in which solid particles suspended in an electrolyte are pumped through the system. These suspend particles form the active, positive and negative electrodes of the battery. They are separated by a filter, such as a thin porous membrane. A key feature of the new design is that separates the energy storage and energy discharge functions into separate physical structures. According to Chiang, this allows the battery to be designed more efficiently. [via]
New battery design uses flow media – [Link]
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