Prosecutors say the victim, 49-year-old Shen Cai, died as a result of "mechanical asphyxiation."
Her husband, 50-year-old Hongyan Sun, entered a not guilty plea in Concord District Court on Thursday.
Prosecutors said the couple was going through a divorce and that Cai had told friends she was fearful about her safety after past verbal abuse and at least one instance of physical violence.
Investigators believe Cai died after a struggle in the couple's home May 28 and that her husband staged her body in a car in an apparent effort to mislead police.
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