>CATL, the world’s biggest battery maker, has vowed to “spare no effort” to electrify parts of the global shipping fleet as it tries to replicate its success with electric vehicles on the high seas.
>The company, which commands 37% of the global electric vehicle battery market and 22% of the energy storage segment, has already equipped roughly 900 ships with its batteries.
>Now, battery prices have dropped 90% since 2010, creating an opportunity to adapt land-based battery systems for maritime use.
>The challenge will be translating battery performance from road to sea. Maritime systems require higher energy density, strict safety standards, and durability under saltwater exposure.
>CATL is developing battery-swapping technologies for ships – similar to its highway network for commercial trucks – so operators can replace depleted units quickly rather than carry the full purchase cost of onboard batteries. The company believes this approach can make electric propulsion more competitive in the short term.
>Financially, CATL enters the marine transition from a strong position. The company posted a net profit of $10.4 billion in 2025, up 42% from the prior year, driven largely by demand for grid-scale energy storage. Its Shenzhen-listed shares have climbed about 13% since the start of the Iran conflict.
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>CATL, the world’s biggest battery maker, has vowed to “spare no effort” to electrify parts of the global shipping fleet as it tries to replicate its success with electric vehicles on the high seas.
>The company, which commands 37% of the global electric vehicle battery market and 22% of the energy storage segment, has already equipped roughly 900 ships with its batteries.
>Now, battery prices have dropped 90% since 2010, creating an opportunity to adapt land-based battery systems for maritime use.
>The challenge will be translating battery performance from road to sea. Maritime systems require higher energy density, strict safety standards, and durability under saltwater exposure.
>CATL is developing battery-swapping technologies for ships – similar to its highway network for commercial trucks – so operators can replace depleted units quickly rather than carry the full purchase cost of onboard batteries. The company believes this approach can make electric propulsion more competitive in the short term.
>Financially, CATL enters the marine transition from a strong position. The company posted a net profit of $10.4 billion in 2025, up 42% from the prior year, driven largely by demand for grid-scale energy storage. Its Shenzhen-listed shares have climbed about 13% since the start of the Iran conflict.
[https://www.techspot.com/news/111963-world-largest-battery-maker-taking-ev-tech-seas.html](https://www.techspot.com/news/111963-world-largest-battery-maker-taking-ev-tech-seas.html)