Leclanché develops third-generation marine battery system for electrification of broad vary of vessels

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Leclanché SA has accomplished improvement of a third-generation marine battery system designed to help the wants of ship builders in producing 100% electrical and hybrid marine vessels. Known as the Navius MRS-3 (Marine Rack System), the brand new system improves upon Leclanché’s MRS-2 which is already powering a broad vary of ferries, container ships and specialty vessels in service world wide.

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The most recent model options important enhancements in battery vitality density, modularity and security.


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The system will start delivery in 2023 and has already been laid out in a number of main design wins together with Scandlines’ 10MWh PR24 zero-emission freight ferry. The Navius MRS-3 is being formally launched at Electrical Hybrid Marine World Expo 2022 being held in Amsterdam this week.

The enhancements included within the Navius MRS-3 begins with the corporate’s proprietary, high-energy 65 Ah G/NMC cells fitted into its newest era M3 Vitality battery modules. Each are produced in-house on the firm’s European cell manufacturing services in Germany and the corporate’s new automated, state-of-the-art module meeting line in Switzerland.

Battery string voltages of as much as 1200 VDC can be found with as much as 720 A string steady discharge present. The variety of cells per module has been elevated to 36 from 32 permitting every module to supply 8.7kWh of vitality, representing a 13% improve over these fitted within the MRS-2. The modules adjust to essentially the most stringent security necessities for the marine, rail, and street sectors.

Security is engineered into the Navius MRS-3 from particular person cells to the whole system. For instance:

  • Cells: Laminated ceramic separators present safety towards inner brief circuits and the cut back electrolyte design minimises the potential quantity of flammable gases.

  • Modules and enclosures: The M3 modules are every fitted with a functionally protected slave unit which measure cell voltages and temperatures and run diagnostics. The IP-rated enclosures present safety towards mechanical and electrical incidents and hold water and contaminants out within the occasion of a thermal runaway whereas preserving noxious gases/flames in and routed out by way of a sealed exhaust system. All components of the system are protected towards water ingress.

  • Battery Administration Programs (BMS) and management unit: A “Functionally Secure” BMS consisting of grasp and slave items built-in inside each module. An optionally available distant battery-data monitoring system is offered enabling steady monitoring of the batteries’ situation.

  • Liquid-cooling: All modules are liquid-cooled with devoted aluminum cooling plates. Moreover, all cooling-pipe connections are exterior to the module enclosure stopping the chance of leaks throughout the module that would trigger thermal incidents. Separate aluminum conductive cooling sheets between the cells dissipate warmth out of the modules, eliminating hotspots and serving to to additional delay the battery system’s life. The liquid-cooled design will increase the lifespan of the system and permits as much as 50% greater vitality density in comparison with air-cooled methods.

  • Lively security system: Every module enclosure incorporates a fail-safe automated system to stop thermal propagation.

The Navius MRS-3 racks can be found in seven totally different heights enabling them to suit into almost all battery rooms. They supply 27% extra vitality in a comparable footprint than earlier era methods; the lowered rack width requires a third-less entrance entry for upkeep.

The system’s revised design focuses on ease of entry to key elements together with:

  • Cooling pipes that are simply accessible on the entrance of the racks

  • Excessive voltage cables will be reached from the rack’s entrance and now characteristic a “quick-connect” system for easy and protected attaching and elimination

  • The management panel, together with BMS, slides out from the rack

  • Cooling system of every rack will be drained individually

  • Modules will be taken out individually

  • Single module enclosure design

  • Total simpler set up

A brand new 10-year efficiency guarantee is offered to prospects buying a Leclanché help and upkeep contract. The system comes commonplace with a two-year guarantee.

As well as, Leclanché is introducing three new groupings of providers:
Reactive providers embrace a 24/7 hotline and distant help and entry to an in-house area service engineer in addition to Leclanché’s community of companions.
Preventative providers embrace upkeep coaching to instruct crews on how you can present upkeep and troubleshooting; and yearly preventative upkeep on-board to conduct visible, mechanical, and electrical routine checks.

Predictive providers newly accessible to prospects and primarily based on a safe and dependable knowledge monitoring of the battery methods. Customers can entry a user-friendly IoT platform permitting them to view an in depth evaluation and studies on the situation of their battery system. They may also obtain skilled evaluation, warning and suggestions throughout the lifetime of their system.

Leclanché can also be providing spare components kits to allow speedy on-site interventions and repairs.

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