VW will gain full management control of the JV, said Stephan Wollenstein, the company's China CEO.
The joint venture will launch five more electric models by 2025 and establish an EV factory in Hefei, VW said.
In a separate transaction, VW said it will pay 1.1 billion euros to acquire 26.5 percent of Guoxuan High-tech, a maker of electric vehicle batteries, becoming its biggest shareholder.
The deals come as global rivals such as EV maker Tesla seek to make inroads in the Chinese car market. Tesla last year became the first foreign automaker to wholly own a car plant in China.
China has set a target of 25 percent of 2025 annual vehicle sales to be made up of NEVs. More than 25 million vehicles were sold in China last year.
Friday's moves also make VW the latest foreign automaker to increase ownership of operations in China since the government started to relax rules in 2018, with BMW quick to take control of its main local venture.