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BYD FILES PATENT FOR DUAL-BATTERY SYSTEM TO ENHANCE EV RANGE AND PERFORMANCE

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July 18, 2025 (Shenzhen) – BYD has revealed patent CN120327289A for a breakthrough dual-battery system that could redefine EV capabilities.

The design features:

Smart transfer module that automatically balances energy between packs

High-density battery for maximum energy storage (extended range)

High-power battery for instant performance (acceleration/towing)

Source: http://epub.cnipa.gov.cn/Dxb/IndexQuery


EDITOR’S NOTE

If successfully implemented, this could allow EVs to simultaneously achieve both:

  • Longer range (via the high-energy battery)
  • Stronger performance (via the high-power battery)

Current EV designs typically force a compromise—prioritizing either range or power (e.g., long-range sedans with modest acceleration vs. high-performance models with limited range).

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