4 ms·

More like 4x. Where can you get anything past about 250 Wh/kg?

• Tade0 7y ago
  Lithium-Sulfur: https://oxisenergy.com/products/ https://oxisenergy.com/products/ The catch here is that they don't last that many cycles and the figure per unit volume is not amazing. Great for aircraft though.
  • fulafel 7y ago
    That page says they're only hoping for availability soon.
    • Tade0 7y ago
      I've been following this company for years. They used to be overly optimistic, but got a reality check along the way and now are more careful in their statements. Anyway 400Wh/kg are available as samples - that's not far away from 500Wh/kg.