Saturday, April 14, 2018

This Battery Advance Could Make Electric Vehicles far Cheaper

Sila Nanotechnologies has pulled off double-digit performance gains for lithium-ion batteries, promising to lower costs or add capabilities for cars and phones.


Sila Nano’s prototype cells boosted energy density by around 20 percent, promising longer-lasting batteries. (Credit: Sila Nanotechnologies) Click to Enlarge.
For the last seven years, a startup based in Alameda, California, has quietly worked on a novel anode material that promises to significantly boost the performance of lithium-ion batteries.

Sila Nanotechnologies emerged from stealth mode last month, partnering with BMW to put the company's silicon-based anode materials in at least some of the German automaker’s electric vehicles by 2023.  A BMW spokesman told the Wall Street Journal the company expects that the deal will lead to a 10 to 15 percent increase in the amount of energy you can pack into a battery cell of a given volume.  Sila’s CEO Gene Berdichevsky says the materials could eventually produce as much as a 40 percent improvement.

For EVs, an increase in so-called energy density either significantly extends the mileage range possible on a single charge or decreases the cost of the batteries needed to reach standard ranges.  For consumer gadgets, it could alleviate the frustration of cell phones that can’t make it through the day, or it might enable power-hungry next-generation features like bigger cameras or ultrafast 5G networks.

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