A plasma-enhanced chemical vapor deposition apparatus for depositing a lithium (Li)-based film on a surface of a substrate includes a reaction chamber, in which the substrate is disposed; a first source supply configured to supply a Li source material into the reaction chamber; a second source supply configured to supply phosphor (P) and oxygen (O) source materials and a nitrogen (N) source material into the reaction chamber; a power supply configured to supply power into the reaction chamber to generate plasma in the reaction chamber; and a controller configured to control the power supply to turn on or off generation of the plasma.
