The silicon battery materials startup NEO Energy Materials is playing it close to the vest, but driving down the cost of EVs is the plan.
There being no such thing as a free lunch, silicon battery researchers have had to overcome some significant challenges. In a 2017 state-of-play report the US Department of Energy described the main culprit, which involves the instability of the solid electrolyte interphase .
“NEO’s products have all achieved an initial coulombic efficiency greater than 86%, and high specific capacity ,” NEO expalins. “In addition, an ICE of 92% or higher can be attained when NEO’s silicon is mixed with existing graphite anodes.” Meanwhile, the newly announced agreement with the yet-to-be-named university is aimed at achieving additional performance improvements by pairing NEO’s silicon anodes with the mystery school’sNEO also points out that polymer electrolytes are non-flammable, providing for safety improvements.
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