Chinese automaker BYD has applied for a new patent covering an advanced cooling plate structure designed to improve thermal management in battery packs, according to filings with China’s National Intellectual Property Administration.

The patent, titled "Cooling Plate Structure, Cooling Plate Assembly, Battery Pack, and Electric Equipment," (publication number CN 119764688 A) was submitted in October 2024.

The design features multiple cooling plates positioned to target the pole regions of battery modules, optimizing heat dissipation across critical areas.

BYD’s solution addresses two key challenges in battery thermal management: uneven cooling and space efficiency.

The segmented cooling plates not only regulate temperatures at the terminals but also cool inter-cell connectors, improving overall heat exchange performance.

The compact, modular design enhances structural rigidity while minimizing assembly footprint.

Notably, the system allows for zone-specific cooling tailored to individual modules’ heat generation patterns, reducing temperature differentials and boosting battery pack reliability.

BYD currently holds over 5,000 patents and operates as a leader in China’s NEV sector.

Public records reveal the company has expanded through 98 subsidiary investments and maintains an active IP portfolio spanning 1,760 trademarks.

BYD also notably exceeded Tesla in terms of pure electric vehicle sales globally in Q1 of 2025 with 416,388 units sold, representing the 2nd consecutive quarter that the company’s achieved the feat.

Meanwhile, Tesla delivered 336,681 EVs globally in the first quarter of the year.