CATL Powers China s Largest Fully Electric Tourist Boat, Yujianâ77
CATL, the world's largest battery manufacturer, has powered China's first completely electric passenger ship, the Yujian 77. This innovative vessel is equipped with marine-grade batteries boasting a capacity of 3918 kWh.
Designed to carry 358 passengers, the ship measures 49 meters in length, 14.5 meters in width, and stands 4.15 meters tall, with a draft of 2.5 meters. It was built by Fujian Funing Shipbuilding Heavy Industry, known for creating a variety of electric passenger vessels, offshore support ships, and research vessels.
The lithium iron phosphate battery packs allow for a range of 45 nautical miles, or about 100 kilometers. With 450 kW electric motors, the ship can reach a maximum speed of 11 knots, equivalent to 20 kilometers per hour. These batteries are designed with safety, durability, and efficiency in mind; they are rated IP68, meaning they are both dustproof and waterproof, safe against immersion in water from one to three meters deep.
Additionally, the batteries incorporate No Propagation technology, which prevents thermal runaway from spreading among the cells. The Yujian 77 was crafted to offer day and night cruises, providing a comfortable experience around Fujian province, particularly near Xiamen and Fuzhou.
This vessel employs zero-emission technologies that cut down fuel consumption by 250 tonnes annually, resulting in a reduction of 400 tonnes of carbon dioxide emissions, which is comparable to planting over 20,000 trees, according to CATL.
While it is not the first or the largest ship outfitted with CATL batteries, it stands out as one of the first to utilize these specific marine-grade batteries that were introduced in December 2023 at Marintec China, a notable maritime exhibition held in Shanghai. CATL also unveiled battery packs for the Yangtze River Three Gorges 1, which is currently the largest fully electric cruise ship designed for the Yangtze River, featuring a 7500 kWh marine battery pack, equivalent to the energy capacity of more than 100 electric vehicles.
As of mid-2025, the largest fully electric ship is the Incat Hull 096, now named the China Zorilla. This impressive 130-meter-long vehicle passenger ferry was built in Tasmania by Incat for Buquebus.
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