The Second International Conference on Energy Storage Materials was held at the graduate school at Shenzhen Tsinghua University in 7-10 November 2018. It was jointly organized by the Graduate School at Shenzhen, Tsinghua University, Tsinghua-Berkeley Shenzhen Institute and the Institute of Metal Research, Chinese Academy of Sciences, supported by ELSEVIER Publisher and Industry-University-Institute Cooperation Innovation Alliance for Advanced Battery and