Marine Battery

Needs Analysis:

• Extend cruising range by at least 40% to compete with traditional diesel yachts
• Improve fast-charging capabilities for shorter port stays
• Enhance weather and saltwater resistance for long-term durability
• Integrate smart features for advanced energy management and diagnostics
• Ensure compliance with stringent marine safety standards

Battery Specifications:

OceanTech Yachts required a custom battery solution meeting the following specifications:

• Dimension: Modular design with individual units not exceeding 1000mm x 600mm x 400mm
• Weight: Maximum of 450 kg per module to optimize vessel weight distribution
• Voltage: 800V nominal for high-efficiency propulsion systems
• Capacity: Minimum 250 kWh total system capacity, with scalability up to 1 MWh
• Discharge Rating: Continuous discharge rate of 3C, with peak capability of 5C for 2 minutes to handle rapid acceleration
• Chemistry: NMC (Nickel Manganese Cobalt) for high energy density and long cycle life
• BMS (Battery Management System):Advanced cell balancing with individual cell monitoring
  • Integrated thermal management system for optimal performance in varying climates
  • Real-time data transmission to the yacht’s central management system
  • Predictive maintenance capabilities and remote diagnostics
• Certifications: DNV-GL, IEC 62619, IP67 rating for marine environments

Solution Design:

We developed a state-of-the-art marine battery solution for OceanTech Yachts:

• Utilized high-energy density NMC cells with silicon-doped anodes for improved performance
• Implemented a robust, corrosion-resistant enclosure with an advanced thermal management system
• Integrated an AI-powered BMS for optimal energy distribution and lifecycle management
• Developed a proprietary fast-charging protocol compatible with emerging marine charging networks
• Implementation Process:Collaborated closely with OceanTech’s naval architects and engineers through multiple design iterations
• Conducted extensive sea trials under various weather conditions and load scenarios
• Provided comprehensive integration support for seamless incorporation into yacht systems

Performance Data:

Cruising range increased by 50%, from 200 nautical miles to 300 nautical miles

• Charging time reduced by 60%, achieving 80% charge in 40 minutes at high-power charging stations
• Energy density improved by 30%, allowing for increased capacity without compromising vessel design
• System efficiency increased by 15%, translating to better overall performance and reduced energy consumption
• Safety and Reliability:Exceeded DNV-GL and IEC 62619 safety standards for marine applications
• Achieved IP69K rating, surpassing the initial requirement for enhanced protection against high-pressure water jets
• Implemented multi-layer safety features, including isolation monitoring, gas venting, and automatic fire suppression systems

Conclusion

This case study showcases our expertise in creating custom battery solutions for the demanding marine industry. By addressing OceanTech Yachts’ specific needs and exceeding their expectations, we’ve demonstrated our ability to deliver high-performance, reliable, and innovative power solutions that are driving the transition to sustainable luxury boating.