Affiliation: School of Materials and Energy

Title of Report : Battery Research in the Context of Dual Carbon Goals - The Origin and Progress of Dense Energy Storage

Reporter: Professor Yang Quanhong (Tianjin University)

Time: 2:00 ~ 3:00 PM, April 20, 2022

Platform: Tencent Meeting, Meeting ID: 544-184-510

Inviter: Professor Rui Xianhong / School of Materials and Energy

Abstract:

In the context of the rapid development of the energy internet towards the "dual carbon" goals, the concepts of a battery's "happiness index" and "hierarchy of needs" are proposed. Achieving "dense energy storage" by miniaturizing batteries to overcome the "space anxiety" faced by intelligent terminals is the inevitable path to enhancing the battery's happiness index. The report will analyze the importance of dense energy storage and the theoretical foundation and practical advantages of using graphene for this purpose. Based on the "mass line" approach in graphene research, the research team's thinking on dense energy storage will be presented. The focus will be on research progress in achieving stable cycling of micron-sized silicon/carbon anodes through a graphene capillary contraction strategy, leading to high volumetric energy density lithium-ion batteries.