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founding Corvus and PBES, Brent Perry now helms Shift Clean Energy, a com- pany taking an integrative approach to battery-stack-making with in-house BMS software for its patented Shift hardware and the knowhow to have predicted the

TR ? res and explosions associated with air-cooled batteries and seen aboard fer- ries, car and cargo carriers.

Shift adds its Lithium NMC principal chemistry and BMS to the existing stan- dard of venting for temperature and tox- ins-shedding. Shift has its own cell-barrier design for stacked cells. The Shift answer to TR is to run coolant around each cell. “Our liquid cooling system is patented and delivers the most effective cooling available on the market today,” he says, adding that “It delivers ? re protection at the cell level, as well as ? re detection at the cell level.” The result is “laboratory- like control” of cell temperatures and ideal lifetime cell performance.

Perry had once cautioned that lab-like control via close-in cell cooling was nec- essary, or else TR could set in. His words have been heeded, in part, and recent safety incidents and reports out of Norway have vindicated the Shift tech. For ship owners, the Shift advantage is safety and a range of energy densities and high-quality cells de- signed for continuous use. The company’s own Cellular Compression Technology of- fers “the lowest ageing values in the indus- try”, or a system of cells that decay “up to 20 percent” less than standard cells.

Interference

The EMI generated by the battery sys- tem will also interfere with other compo- nents, our ABB source says. It will affect all equipment connected to it. EMI test- ing needs to ensure that the battery’s EMI emissions are within limits.

All ABB equipment aboard battery- powered ships will work with battery systems that have passed the DNV-

CG-0339-2021 tests for electromagnetic compatibility. For an ESS supplier, this ought to be key to acceptance with just about all systems integrators and owners.

Shift is understood to have this plus the www.marinelink.com 23

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