China EV battery giants power push into green shipbuilding

China’s top EV battery producers, CATL and Gotion High-tech, are supplying batteries for new electric-powered ships as China pushes to expand green shipbuilding.

CATL said its first self-developed pure electric vessel will begin ocean operations within three years.

Gotion, backed by Volkswagen, said its battery packs can power a 132-container ship that has received certification from the China Classification Society.

Chinese shipbuilders held 65% of global shipbuilding orders by deadweight tonnage in the first three quarters of 2025, according to Clarksons.

🔗 Source: South China Morning Post

🧠 Food for thought

Implications, context, and why it matters.

Battery-electric ships stay niche despite CATL and Gotion wins

CATL (Contemporary Amperex Technology Co. Limited) is the world’s largest EV battery maker and supplies batteries for electric ships. Gotion High-tech, a Chinese battery maker backed by Volkswagen Group, also supplies. DNV (a maritime classification and risk advisory firm) logged no battery-electric vessels in H1 2025 1. LNG led with 87 ships at 14.2 million GT, methanol 40 at 4.6 million GT, ammonia and hydrogen seven.
Puffer Fish Blue 01, a 132-container ship, remains a pilot project. 81 LNG-fueled container ships, at 13.6 million GT, picked gas over batteries 1.
Range and energy density constraints cap battery-electric propulsion, keeping to short-sea routes (coastal and inland). Long-haul shipping needs fuels like LNG and methanol for multi-day voyages 1.

Asian port electrification creates openings for energy system integrators

As battery-electric ships enter service, Asian ports will need megawatt-scale charging and energy management systems. Port equipment suppliers, electrical engineering firms, and maritime software providers can track Chinese port tenders for timing.
Thirteen LNG bunkering (refueling) ships were ordered in H1 2025, compared with 62 in service worldwide. Shore-power charging (plugging ships into the grid at berth) will likely follow as electric ships scale 1.
Technology investors can target companies building marine battery management and grid-to-ship charging solutions (high-capacity connections from the power grid to moored vessels). China holds 65% of the shipbuilding orderbook and leads EV battery production, which positions it to set electrification standards with global reach.