5 Fastest-Growing Battery Technology Stocks to Buy

In this article, we will list the 5 Fastest-Growing Battery Technology Stocks to Buy. Please visit 9 Fastest-Growing Battery Technology Stocks to Buy if you’d like to see an extended list and our methodology behind it.

5. Contemporary Amperex Technology Co., Limited (OTC:CTATF)

Contemporary Amperex Technology Co., Limited (OTC:CTATF) is one of the fastest-growing battery technology stocks to buy. On April 10, 2026, CATL was reported to have invested about RMB4.1 billion, or roughly $600 million, for a 49% stake in Hangzhou Zhongheng Technology Investment, increasing its exposure to Zhongheng Electric, a supplier of high-voltage direct-current power systems used by major Chinese data-center operators.

The move points to a broader ambition than electric vehicles alone. As AI pushes data-center operators toward denser power architecture and more resilient power systems, CATL appears to be positioning itself closer to the infrastructure layer that will sit behind those loads.

A day earlier, on April 9, 2026, CATL signed a strategic cooperation framework agreement with Guangzhou Public Transport Group to jointly plan a taxi battery-swap network in Guangzhou. The agreement also covers battery supply and maintenance, recycling, and battery-swap infrastructure, while extending into areas such as electric vessels, vehicle-to-grid, and the low-altitude economy. Taken together, the two April announcements suggest CATL is trying to widen its moat in two different directions at once: deeper into power infrastructure tied to AI-era electricity demand, and further into urban energy-replenishment networks for transport.

Contemporary Amperex Technology Co., Limited (OTC:CTATF) is a Chinese battery manufacturer. The company develops batteries and energy-storage systems for electric vehicles and a growing range of grid, industrial, and infrastructure applications.