While global EV adoption surges, lithium-sulfur (Li-S) batteries remain conspicuously absent from commercial vehicles despite their theoretical 500 Wh/kg energy density. Sion Power's recent forecast of achieving 1,000 cycles at 80% depth of discharge (DoD) by 2025 raises critical questions: Can this chemistry finally overcome its notorious cycle life limitations? What engineering breakthroughs made this projection possible?
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