Technology Industry
Industry: Email Alert RSS FeedLITHIUM: High Specific Energy Density Reached.
Battery & EV Technology, January, 2003
Sion Power (9018 S. Rita Rd, Tucson, AZ 85747; Tel: 520/799-7500) has developed prototype rechargeable lithium-sulfur (Li-S) cells that demonstrate a specific energy density of 180 Wh/kg, an 80% increase over that of lithium-ion batteries.
The company's first commercially available rechargeable cell is scheduled for introduction in 2003. That product's specific energy density is projected to reach 300 Wh/kg. Design concepts place the practical limit for future company cells at 500 Wh/kg.
Sion continues to refine its technology, one the latest efforts being the incorporation of a multi-functional reactive monomer into a non-aqueous electrolyte. Incorporating the monomer causes rapid polymerization at elevated temperatures (over 100(C), increasing the...
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