Breakthrough in Sodium-Sulfur Technology – 2,021 Wh/kg Battery Rivals Lithium-Ion Using Abundant Materials Introduction – Chipping A Way At The Lithium-Ion Monopoly A technological breakthrough reported in early 2026 has the potential to shatter the global energy storage cartel. Researchers from Shanghai Jiao Tong University have developed a sodium-sulfur battery prototype achieving an energy density of 2,021 watt-hours per kilogram (Wh/kg), a figure that directly rivals the performance of conventional lithium-ion batteries [1]. This is not merely an incremental step in battery science; it is a crucial development for humanity’s move away from reliance on lithium—a resource tightly controlled by monopolistic…

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