Timothy Kinsey, 43, was expected to make his first court appearance Thursday.
Police said Timothy Kinsey doused Juanita Natasha Kinsey with gasoline last Saturday and threw a match on her.
Juanita Kinsey, 37, is listed in critical condition in the Jaycee Burn Center at University of North Carolina Hospitals in Chapel Hill with second- and third-degree burns over 40 percent of her body.
Her 14-year-old son, Timarcus Carraway, was also burned when gasoline splashed on him and when he used a coat to try to put out the flames burning his mother. He was treated for burns on his hands and arms and released from the burn center.
Juanita Kinsey is a shelter coordinator for SAFE of Lenoir County, which supports victims of domestic violence and sexual abuse.