Toyota Motor on Monday said it will market more than 10 all-electric vehicle (EV) models globally in the early 2020s, and that investment to develop their batteries is likely to exceed $13 billion (1.5 trillion yen) through 2030.

Setting out EV sales goals, the world’s second-biggest automaker by sales after Volkswagen said it needed to accelerate the pace of battery development, as tightening vehicle emissions regulations would require a steep increase in manufacturing capacity for more powerful batteries.

China, the United States and a growing number of other countries are forcing automakers to make low-emissions cars, spurring competition to develop EVs even as battery-operated cars currently comprise just a sliver of the global market.

“As a mass-market automaker we need to expand our offering of electric cars,” Executive Vice President Shigeki Terashi said at a briefing in Tokyo. “To promote the wider use of EVs, we need to increase our technical development capabilities and address the societal impact of the technology.”

He said Toyota would introduce pure-battery models initially in China, followed by Japan, India, the U.S. and Europe.

Last year, plug-in hybrid petrol-electric vehicles and all-battery EVs made up just over 1 percent of global auto sales, showed data from the International Energy Agency. Industry experts anticipate sales to reach 10 percent in coming decades.

Toyota has expanded EV development capabilities since last year when it announced it would add fully electric vehicles to its product line-up. The announcement surprised some industry players as the automaker had long touted a green-car strategy focusing mainly on plug-in hybrid and fuel-cell vehicles (FCVs).

Terashi, who heads Toyota’s EV Business Planning Department, said the automaker was not shifting focus from FCVs to EVs, but rather planned to increase offerings in both segments.

Already, to increase the driving range of EVs and improve battery safety, Toyota has been developing a number of technologies including solid-state batteries, which it has described as being an industry “game changer.”

Last week, Toyota also said it and partner Panasonic were considering jointly developing next-generation EV batteries, in anticipation of increased demand for low-emission cars with more powerful batteries.

Toyota has also partnered peers including Mazda Motor and Suzuki Motor to jointly develop and market electric cars.

The automaker expects EVs to make up around half of its total sales by 2030. By then, it aims to sell 4.5 million petrol-electric and plug-in hybrid vehicles annually, and 1.0 million all-electric vehicles and FCVs.