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BYD Unveils Sodium-Ion Battery With 10,000 Charge Cycles and Solid-State Plans for 2027

February 9, 2026

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BYD has announced its third-generation sodium-ion battery platform has achieved 10,000 charging cycles, far surpassing conventional lithium batteries. The company also revealed plans for small-scale production of sulfide solid-state batteries by 2027, with energy densities reaching 400 watt-hours per kilogram.

BYD Leaps Ahead in Battery Race With Dual Breakthroughs

BYD, the world's largest electric vehicle manufacturer, has announced a pair of significant battery technology milestones that could reshape the future of electric vehicles and energy storage.

The Chinese automaker revealed on February 9th that its third-generation sodium-ion battery platform has achieved an extraordinary 10,000 charging cycles, dwarfing the typical 1,500 to 3,000 cycles found in conventional lithium batteries. The cells have also reached a capacity of 200 ampere-hours while outperforming lithium batteries in safety, power output, and temperature stability.

Why Sodium Matters

Sodium-ion batteries represent a potentially transformative shift in energy storage. Sodium is roughly a thousand times more abundant than lithium on Earth, making it a compelling hedge against lithium price volatility. While sodium-ion batteries currently carry lower energy density than their lithium counterparts, the dramatically improved cycle life and superior cold-weather performance make them ideal for grid-scale energy storage, commercial vehicles, and budget-friendly electric cars.

BYD said mass production timing will depend on market and customer demand, but the company is clearly positioning itself for rapid deployment.

Solid-State Ambitions

Alongside the sodium-ion news, BYD confirmed plans to begin small-scale production of sulfide solid-state batteries by 2027. These next-generation cells use sulfide composite electrolytes paired with high-nickel cathodes and silicon-based anodes, achieving energy densities of up to 400 watt-hours per kilogram. That translates to driving ranges exceeding 1,000 kilometres and charging from zero to 80 percent in just 10 minutes.

The initial rollout will target BYD's premium Yangwang brand, with roughly 1,000 demonstration vehicles planned for 2027. By 2030, the company expects to expand to about 40,000 vehicles across its Dynasty and Ocean lineups as costs fall toward parity with conventional liquid lithium batteries.

Industry-Wide Race

BYD is not alone in this pursuit. Rival CATL has already begun commercial production of sodium-ion batteries and plans large-scale deployment across passenger vehicles, commercial vehicles, and energy storage systems in 2026. Other Chinese automakers including Changan, Geely, and SAIC are pursuing similar solid-state timelines, reflecting a broader industry sprint toward next-generation battery technology.

Published February 9, 2026 at 2:16pm

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