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The application scenarios of Marine power batteries are expanding comprehensively from short-distance inland waterways to long-distance coastal areas, and from passenger ships to cargo ships. Technical adaptability has become the core driving force.
1.Inland waterway Shipping: The "Vanguard Position" of Green Transformation
Inland waterway vessels have short voyages and frequent berthing, which places extremely high demands on the fast charging capacity and cycle life of batteries. A certain inland river container ship renovation project adopts high-rate lithium iron phosphate batteries, which support 5C fast charging (80% charged in 12 minutes), and have a cycle life of over 6,000 times, which can meet the high-frequency usage demand of three daily charge and discharge cycles. In addition, the modular design of the battery system supports rapid expansion, allowing for flexible adjustment of capacity according to the length of the flight route and reducing the initial investment cost.
2. Coastal Shipping: The "Dual Challenges" of Long Endurance and High Power
Coastal vessels need to cope with complex sea conditions and long voyages, which puts forward higher requirements for the energy density and power density of batteries. A certain coastal bulk carrier adopts a hybrid system of "lithium iron phosphate + supercapacitor". The lithium iron phosphate battery provides the basic range (300 kilometers on a single charge), while the supercapacitor is responsible for peak power output (such as in scenarios like berthing and evading). The two work together to increase the vessel's overall energy efficiency by 25% and reduce carbon emissions by 60% compared to traditional fuel ships.
3. Special Vessels: "Customized Solutions" for Extreme Environments
For special vessels such as polar research ships and deep-sea operation vessels, batteries need to possess characteristics such as low-temperature resistance, corrosion resistance, and high reliability. The low-temperature battery carried by a certain polar research vessel, which adopts special electrolyte and insulation design, can stably output current in an environment of -40℃, supporting the vessel to continuously operate in ice areas for more than 15 days. Meanwhile, the redundant design of the battery system (independent power supply for dual battery packs) ensures safety in extreme environments.
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