On Nov.4, 2018, Prof. Yi Cui in the Department of Materials Science and Engineering at Stanford University gave the talk of “Batteries Now and Future”. With EV car everywhere, this is certainly a very popular topic. The tickets were sold out a week before the event. Prof. Cui talked about many perspectives of battery, including high energy density that can be reached, battery life time, battery safety, available resource to make battery, battery recycling and energy storage. He also related his research in the discussed area, such as nanomaterials for energy storage, photovotalics, topological insulators, biology and environment. He has founded Amprius Inc. to commercialize technologies from his group. Many questions were asked and audience was very engaged. What a great presentation!