Can my child use his Australian passport instead of Chinese travel document

My child was born in Australia and holds an Australian passport. He also had a Chinese travel document, which has now expired. My wife, who was a Chinese citizen at the time of his birth, is now an Australian citizen. We are planning a 7-day trip to China under the visa-free arrangement for Australian citizens. As we prefer to use his Australian passport, can my son enter China without any issues, or will he require a renewal of his Chinese travel document?