China\u2019s manned deep-sea submersible Jiaolong has redefined oceanic exploration capabilities following a landmark technological upgrade, completing unprecedented mission efficiency during recent trials in the Pacific Ocean. Operated by the Ministry of Natural Resources, the vessel executed 14 dives in 10 days \u2013 including four groundbreaking \u201ctwo-dives-per-day\u201d operations and nine consecutive missions with one pilot and two scientists aboard.
The upgrades, implemented from November 2023, introduced domestically developed systems such as 7,000-meter-rated oil-immersed lithium batteries and low-noise thrusters that boost propulsion efficiency by 15%. During 3,000-meter test dives, engineers confirmed the reliability of new hydraulic buoyancy controls and emergency systems, marking a leap in China\u2019s deep-sea technology independence.
\u201cThe upgrades demonstrate China\u2019s capacity to innovate in extreme-environment engineering,\u201d stated a ministry representative, highlighting plans for over 80 scientific dives in 2025. The advancements position Jiaolong as a critical tool for studying marine biodiversity, hydrothermal vents, and rare-earth mineral deposits vital for renewable energy technologies.
Researchers note the developments could accelerate international collaboration in oceanographic studies, while investors watch for spin-off applications in underwater robotics and sustainable battery systems. As global demand for deep-sea resources grows, Jiaolong\u2019s achievements spotlight Asia\u2019s expanding role in shaping humanity\u2019s understanding of Earth\u2019s final frontier.
